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| | Page 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33 | Volcano update December 1, see pg 33
| Geogal 
Hu ka pele, lava pour forth
User ID: 373387
8/14/2008 12:15 AM
 | | Re: Volcano update December 1, see pg 33 | Quote |
Alaska Volcano Observatory
Current Status Report
Wednesday, August 13, 2008 1:24 PM AKDT (21:24 UTC)
KASATOCHI VOLCANO
52°10'9" N 175°30'41" W, Summit Elevation 1030 ft (314 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
The remnant volcanic ash cloud from the eruption of Kasatochi volcano last week has largely dissipated and is no longer detected over southeast Alaska in satellite data. A volcanic gas and aerosol cloud from the eruption persists over parts of North America. Seismic activity at Kasatochi volcano is still being detected by the AVO seismic network on Great Sitkin Island 25 miles to the west.
AVO has received no new information about ash emissions or activity from passing pilots or mariners. The volcano is still quite restless and renewed eruptive activity is still possible.
CLEVELAND VOLCANO
52°49'20" N 169°56'42" W, Summit Elevation 5676 ft (1730 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Volcanic unrest continues at Cleveland volcano. Cloudy conditions in the region have prohibited satellite observations today and AVO has received no new information or observations about activity at Cleveland.
Small ash bursts and low-level ash plumes may resume at the volcano. It is also possible for larger, higher reaching plumes to be produced without warning.
OKMOK VOLCANO
53°23'49" N 168°9'58" W, Summit Elevation 3520 ft (1073 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Eruptive activity continues at Okmok Volcano. The intensity of activity has been relatively steady over the past day. A weak low-level ash cloud was observed in satellite data this morning, but likely did not extend more than 15,000 feet above the volcano.
Minor ash fall may occur over parts of Umnak Island.
OTHER ALASKA VOLCANOES
Seismic activity is monitored in real time at 30 volcanoes in Alaska. Satellite images of all Alaskan volcanoes are analyzed daily for evidence of ash plumes and elevated surface temperatures. Some volcanoes may currently display anomalous behavior but are not considered to be at a dangerous level of unrest. Augustine, Iliamna, Redoubt, Wrangell, Gareloi, Great Sitkin, Makushin, Fisher, Shishaldin, Isanotski, Pavlof, Veniaminof, Ugashik-Peulik, Griggs, Snowy, Fourpeaked, Aniakchak, Tanaga, Kanaga, Akutan, Westdahl, Dutton, Ukinrek Maars, Martin, Mageik, Trident, Katmai, Novarupta, Spurr, and Korovin volcanoes are in color code GREEN and volcano alert level Normal. All are at or near normal levels of background seismicity. AVO did not detect ash plumes or significant elevated surface temperatures in the vicinity of any volcano.
Please see [link to www.avo.alaska.edu]
VOLCANO INFORMATION ON THE INTERNET: [link to www.avo.alaska.edu]
RECORDING ON THE STATUS OF ALASKA'S VOLCANOES (907) 786-7478
CONTACT INFORMATION:
Chris Waythomas, Acting Scientist-in-Charge, USGS
chris@usgs.gov, (907)786-7497
Jon Dehn, Acting Coordinating Scientist, UAFGI
dehn@gi.alaska.edu (907) 474-6499
The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/14/2008 12:30 AM
| | Re: Volcano update December 1, see pg 33 | Quote |
HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
Wednesday, August 13, 2008 07:57 HST (Wednesday, August 13, 2008 17:57 UTC)
KILAUEA VOLCANO (CAVW#1302-01-)
19.42°N 155.29°W, Summit Elevation 4091 ft (1247 m)
Volcano Alert Level: WATCH
Aviation Color Code: ORANGE
This report on the status of Kilauea volcanic activity, in addition to maps, photos, and webcam images (available using the menu bar above), was prepared by the USGS Hawaiian Volcano Observatory (HVO). Hawai`i Volcanoes National Park status can be found at [link to www.nps.gov]
Activity Summary for last 24 hours: Kilauea summit continued to produce increased amounts of ash and elevated amounts of sulfur dioxide gas from the Halema`uma`u vent. At the east rift eruption site, Pu`u `O`o cone continued to produce elevated amounts of sulfur dioxide gas; vog, probably from Pu`u `O`o, was reported in Hilo this morning; the TEB eruption has resumed with lava flowing through tubes to the ocean and supplying several surface flows.
Last 24 hours at Kilauea summit: The normally-white plume turned brown at least twice yesterday morning in response to local earthquakes. Overnight, incandescence was very weak. Despite the weak glow, NPS interpretation staff were able to record two possible winks not associated with earthquakes around 7:30 pm.
A white, sometimes brownish, plume is rising from the Halema`uma`u vent at least 700 m straight up before being blown eastward toward Mauna Loa; SO2 concentrations have already peaked at HVO, Volcano Golf Course, and Kulani Prison this morning. GOES-WEST imagery shows the plume going west this morning before veering to the southwest starting at 06:30. Sulfur dioxide emission rates remained elevated, variable, and unaffected by the wind change; the most recent average measurement was 600 tonnes/day on August 12 compared to 900 tonnes/day on August 7 and a pre-2008 background rate between 150-200 tonnes/day.
Even with weak winds, increased amounts of ash were collected beneath the plume this morning underscoring that the plume has been carrying more ash over the last few days. Rock impact and rushing sounds were more evident near the vent when not drowned out by howling trade winds.
The summit tiltmeter network recorded slowed deflation. The network of GPS receivers that span the summit caldera recorded contraction across the caldera.
Seismic tremor remained at moderate levels with no episodic bursts. The number of RB2S2BL earthquakes beneath Halema`uma`u Crater continued to decline and are near background values. Two earthquakes were located beneath the summit area, one on Koa`e faults, and one beneath the upper east rift zone.
Last 24 hours at the middle east rift zone vents and flow field: Magma continued to degas through Pu`u `O`o Crater resulting in an emission of 2,400 tonnes/day of sulfur dioxide on August 8, down from a high of 7,100 tonnes/day on July 18 and near background values of about 2,000 tonnes/day. Visible vog has been reported in Hilo this morning. No incandescence was observed within the crater last night.
The tiltmeter on the north side of Pu`u `O`o cone recorded deflation. GPS receivers recorded no change in distance across the crater. Seismic tremor levels were at background levels near Pu`u `O`o but remain elevated near the TEB vent.
Lava from the TEB vent and the rootless shield field through tubes to the ocean. The only incandescence visible on the flow field above the pali was from from the upper rootless shield complex. At least one flow finger remained active on the coastal plain yesterday and was advancing through the kipuka immediately west of the viewing area. GOES-WEST imagery continued to show a thermal anomaly suggesting surface flows are still active at the coast this morning. There were three active entries yesterday, one on either side of the main Waikupanaha entry.
[link to volcano.wr.usgs.gov]
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
User ID: 373387 (OP)
8/14/2008 10:14 AM | | Re: Volcano update December 1, see pg 33 | Quote |
Chaiten area airport north view. Kinda weird. Yesterday, a cloud cover came in that looked a bit like the plume changing direction for the airport and the camera lens got choked over with something completely obstructing the view. When I checked satellite, it did show a cloud formation coming in over Chile. No one has cleared the lens as of yet.
[link to www.aipchile.cl]
There haven't been any new updates from Sernageomin SInce the 4th for Chaiten and the 2nd for Llaima. |
| Geogal
User ID: 373387 (OP)
8/14/2008 12:45 PM | | Re: Volcano update December 1, see pg 33 | Quote |
Hrmmm... Looks like the volcanoes under the arctic are potentially fixing for some activity. Not sure if we'd actually be able to find a site that would cover that, though. But, interesting activity there.
4.9 2008/08/14 10:37:51 83.314 117.575 10.0 NORTH OF SEVERNAYA ZEMLYA
4.5 2008/08/14 09:29:13 83.581 114.926 10.0 NORTH OF SEVERNAYA ZEMLYA
4.4 2008/08/14 05:59:21 83.558 114.438 10.0 NORTH OF SEVERNAYA ZEMLYA
5.6 2008/08/13 18:30:57 83.538 114.132 10.0 NORTH OF SEVERNAYA ZEMLYA
5.4 2008/08/13 08:35:02 83.708 114.752 10.0 NORTH OF SEVERNAYA ZEMLYA
4.4 2008/08/10 10:05:14 83.707 113.747 10.0 NORTH OF SEVERNAYA ZEMLYA |
| Geogal
User ID: 373387 (OP)
8/14/2008 12:46 PM | | Re: Volcano update December 1, see pg 33 | Quote |
Hrmmm... Looks like the volcanoes under the arctic are potentially fixing for some activity. Not sure if we'd actually be able to find a site that would cover that, though. But, interesting activity there.
4.9 2008/08/14 10:37:51 83.314 117.575 10.0 NORTH OF SEVERNAYA ZEMLYA
4.5 2008/08/14 09:29:13 83.581 114.926 10.0 NORTH OF SEVERNAYA ZEMLYA
4.4 2008/08/14 05:59:21 83.558 114.438 10.0 NORTH OF SEVERNAYA ZEMLYA
5.6 2008/08/13 18:30:57 83.538 114.132 10.0 NORTH OF SEVERNAYA ZEMLYA
5.4 2008/08/13 08:35:02 83.708 114.752 10.0 NORTH OF SEVERNAYA ZEMLYA
4.4 2008/08/10 10:05:14 83.707 113.747 10.0 NORTH OF SEVERNAYA ZEMLYA Quoting: Geogal 373387
opps... Link
[link to earthquake.usgs.gov] |
| Geogal
User ID: 373387 (OP)
8/14/2008 2:52 PM | | Re: Volcano update December 1, see pg 33 | Quote |
There does seem to be a pretty good cloud cover over Chile right now. I'll check the cam later today, but I have a feeling we won't be able to distinguish cloud from plume today if the lens is cleared.
Chaitén Update 51
[link to www.seablogger.com]
Thursday, 14 Aug 08, volcanoes
Chilean official Werner Luis publishes a Spanish-language blog with updates and photographs of the Chaitén eruption. Today I see some interesting new information there: analysis of newly-fallen ash indicates a change in chemistry, specifically a lower silica content. You may recall that the initial explosions deposited ash exceptionally high in silica, and low in SO2. The latter is deemed to have more climatological impact when injected to the stratosphere.
Of course the clear implication is that magma from a new, deeper source has reached the surface — an interpretation consistent with the seismic pattern of recent weeks. The volcano has now entered a second eruptive phase. So far there have been no big explosions. We will see nothing today. Rain is washing the ash off the webcam, little by little, but the weather is likely to remain bad and the viewing poor to nil.
I will check the visible satellite image before South American sundown, and see whether plume is punching through the cloud deck. If it is, this post will get an update. BTW, last week’s Aleutian eruption put more SO2 in the stratosphere than any volcanic blast since Cerro Hudson in 1991. |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/14/2008 3:08 PM
| | Re: Volcano update December 1, see pg 33 | Quote |
Here we go again. It seems that Chaiten did puff out extra ash and silica yesterday when I saw it in the web cam. It also seems that it's gearing up again for another short period...
Increased activity at Chile's Chaiten volcano
[link to www.pr-inside.com]
2008-08-14 17:21:02 -
SANTIAGO, Chile (AP) - Authorities say the Chaiten volcano in southern Chile has resumed strong activity, spewing a column of smoke 4 miles (6 kilometers) into the air and raining ash on a nearby village.
Government emergency and geological agencies said Thursday in a statement that the volcano rumbled to life the previous evening with a series of medium-strength earthquakes.
Chaiten has been active with varying intensity since a May 2 eruption that forced the evacuation of thousands of people around a town of the same name. Residents have yet to return.
:chaitenusg:
Chaiten in July 2008 Fly over photo via USGS
:chaitentow:
Chaiten town in May after the first lahars (flows of ash) down the mountain.
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/14/2008 3:13 PM
| | Re: Volcano update December 1, see pg 33 | Quote |
Details on the Kasatochi eruption
[link to eruptions.wordpress.com]
August 14, 2008 by Erik Klemetti
This article sums up a lot of the events that led up to the Kasatochi (Alaska) eruption last week from the point of view of the biologists on the island itself right before it erupted. There are some great descriptions of the whole island shaking for 10 minutes, and they also offer some exciting new details such as this:
“Jeff Williams, a biologist for the maritime refuge, sailed by the island on the refuge boat the Tiglax and said the island has a new shape; what were steep cliffs rising from the ocean on the island’s east and west sides now appear to be long, gradual slopes.”
[link to alaskareport.com]
That would imply to me that the eruption has produced a lot of pyroclastic material that now lies as an apron of material around the vent - much like a river delta or alluvial fan of volcanic material. Most likely, this material will be quickly eroded if it is merely piles of loosely consolidated pumice and ash, but at least for the time being, Kasatochi has added some valuable oceanside real estate to the island.
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/14/2008 5:58 PM
| | Re: Volcano update December 1, see pg 33 | Quote |
Alaska Volcano Observatory
Current Status Report
Thursday, August 14, 2008 1:37 PM AKDT (21:37 UTC)
KASATOCHI VOLCANO
52°10'9" N 175°30'41" W, Summit Elevation 1030 ft (314 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
The remnant volcanic ash cloud from the eruption of Kasatochi volcano last week has largely dissipated and is no longer detected over southeast Alaska in satellite data. A volcanic gas and aerosol cloud from the eruption persists over parts of North America. Seismic activity at Kasatochi volcano is still being detected by the AVO seismic network on Great Sitkin Island 25 miles to the west.
AVO has received no new information about ash emissions or activity from passing pilots or mariners. The volcano is still quite restless and renewed eruptive activity is still possible.
CLEVELAND VOLCANO
52°49'20" N 169°56'42" W, Summit Elevation 5676 ft (1730 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Volcanic unrest continues at Cleveland volcano. Cloudy conditions in the region have obscured satellite observations today and AVO has received no new information or observations about activity at Cleveland.
Small ash bursts and low-level ash plumes may resume at the volcano. It is also possible for larger, higher reaching plumes to be produced without warning.
OKMOK VOLCANO
53°23'49" N 168°9'58" W, Summit Elevation 3520 ft (1073 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Eruptive activity continues at Okmok Volcano. The intensity of activity has been declining over the past day to some of the lowest levels seen during the eruption, although the seismic intensity and tremor duration are still above background levels. Cloudy conditions have obscured observations from satellite data.
Minor ash fall may occur over parts of Umnak Island.
OTHER ALASKA VOLCANOES
Seismic activity is monitored in real time at 30 volcanoes in Alaska. Satellite images of all Alaskan volcanoes are analyzed daily for evidence of ash plumes and elevated surface temperatures. Some volcanoes may currently display anomalous behavior but are not considered to be at a dangerous level of unrest. Augustine, Iliamna, Redoubt, Wrangell, Gareloi, Great Sitkin, Makushin, Fisher, Shishaldin, Isanotski, Pavlof, Veniaminof, Ugashik-Peulik, Griggs, Snowy, Fourpeaked, Aniakchak, Tanaga, Kanaga, Akutan, Westdahl, Dutton, Ukinrek Maars, Martin, Mageik, Trident, Katmai, Novarupta, Spurr, and Korovin volcanoes are in color code GREEN and volcano alert level Normal. All are at or near normal levels of background seismicity. AVO did not detect ash plumes or significant elevated surface temperatures in the vicinity of any volcano.
Please see [link to www.avo.alaska.edu]
VOLCANO INFORMATION ON THE INTERNET: [link to www.avo.alaska.edu]
RECORDING ON THE STATUS OF ALASKA'S VOLCANOES (907) 786-7478
CONTACT INFORMATION:
Chris Waythomas, Acting Scientist-in-Charge, USGS
chris@usgs.gov, (907)786-7497
Jon Dehn, Acting Coordinating Scientist, UAFGI
dehn@gi.alaska.edu (907) 474-6499
The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
User ID: 373387 (OP)
8/15/2008 10:25 AM | | Re: Volcano update December 1, see pg 33 | Quote |
Chaiten area airport north view. Pretty constant cloud cover, so there's not been a good view of the plume this morning.
[link to www.aipchile.cl]
There haven't been any new updates from Sernageomin SInce the 4th for Chaiten. They released a report for the Aug 13 for Llaima last night.
The bulletin said that bad weather was making viewing the volcano difficult. It seems that some of the activity has slowed, but is not gong away. They are still having between 4 and 20 LP (long period) earthquakes per hour from the volcano area and dark gray ash emissions with weak gas emissions, and a normal amount of (HB) hybrid earthquakes. It didn't say if they were or were not having VT (volcanic tectonic) earthquakes. It did mention that there was a minor amount of fluids moving to the surface which coincided with the weak ash emissions noted on the occasional mornings.
For additional information, please check the bulletin linked
[link to www2.sernageomin.cl] |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/15/2008 1:24 PM
| | Re: Volcano update December 1, see pg 33 | Quote |
Montserrat Volcano Observatory
Weekly Report for the period 8 – 15 August 2008
Lava extrusion has resumed at the Soufriere Hills Volcano on the western side of the lava dome. The rate of extrusion is low and seismic activity is low apart from rockfalls associated with the extrusion. Sulphur-dioxide flux remains at an elevated level.
The first evidence of the new extrusion was on 8 August. Although the dome was obscured by cloud, a new channel of fresh rockfall material could be seen below the Gages Wall. One rockfall was observed in this channel, generating an ash cloud that drifted over populated areas to the north west.
It was not possible to make any observations of the dome until 14 August, when the wind turned to the north making parts of the west side of the dome visible from St George’s Hill. The explosion crater generated on 28 July was apparent, but it was almost completely filled with new lava. The lava had spilled over the lower, western, side of this crater generating the rockfalls below the Gages Wall. During a 30 minute period, several small rockfalls were observed, and heard, from St George’s Hill.
It is not possible to determine exactly when lava extrusion began. It could have been immediately after the 28 July explosion or there could have been a pause before extrusion started, as has happened before. In either case, the time taken for the lava to fill the explosion crater indicates that the rate of extrusion has been low, probably less than 0.1 cubic metre per second.
The northerly winds on 14 August and on the morning of 15 August blew the gas plume over inhabited areas of Montserrat and the smell of volcanic gases was very noticeable at times.
Seismic activity was relatively low this week. The MVO recorded 21 rockfalls, 12 long period, 2 hybrid and 2 volcano-tectonic events. Most of the rockfalls occurred between 11 and 15 August and are associated with the new lava extrusion.
The average sulphur dioxide (SO2) flux for the week was 1016 tons per day (t/d) with a minimum of 364 t/d on August 10 and a maximum of 1791 t/d on August 13. These values are similar to the elevated values recorded last week following the explosion on 28 July.
FTIR (Fourier Transform Infrared Spectroscopy) measurements on 8 August gave a value of 0.62. This is a significant increase on recent values, which have been around 0.4, and is consistent with slow dome growth.
Extrusion is expected to continue, and an increase in the extrusion rate cannot be ruled out. As more material is extruded, the lava should form a new lobe on the western flank of the dome. The steepness of the dome in this area makes it very likely that, as the dome grows, rockfall activity will increase and that this could generate pyroclastic flows on the western flank of the volcano.
The Hazard Level is 3.
[link to www.mvo.ms.]
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/15/2008 1:32 PM
| | Re: Volcano update December 1, see pg 33 | Quote |
LONG VALLEY OBSERVATORY CURRENT STATUS REPORT
Friday, August 15, 2008 09:11 PDT (Friday, August 15, 2008 16:11 UTC)
LONG VALLEY VOLCANIC CENTER VOLCANO (CAVW#1203-14-)
37.70°N 118.87°W, Summit Elevation 11122 ft (3390 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
The realtime detection system located two small earthquakes in the Long Valley caldera vicinity since the last update at 9:03 AM (PDT) on August 14. A magnitude M=1.2 event occurred in the Sierra Nevada south of the caldera (8 miles WSW of Tom's Place) at 1:07 PM, and a M=2.4 earthquake occurred beneath the eastern margin of the Volcanic Tableland (11 miles NE of Round Valley) at 8:38 PM, both on the 14th.
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LONG VALLEY OBSERVATORY CURRENT STATUS REPORT
Thursday, August 14, 2008 09:03 PDT (Thursday, August 14, 2008 16:03 UTC)
LONG VALLEY VOLCANIC CENTER VOLCANO (CAVW#1203-14-)
37.70°N 118.87°W, Summit Elevation 11122 ft (3390 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
The realtime detection system located no earthquakes in the Long Valley caldera vicinity since the last update at 9:25 AM (PDT) on August 13. Elsewhere, earthquakes with magnitude M=2.1 and 1.8 at 11:46 AM (PDT) AND 12:07 PM, respectively, were located 9 miles SE of Bishop in the northern Owens Valley.
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LONG VALLEY OBSERVATORY CURRENT STATUS REPORT
Wednesday, August 13, 2008 09:25 PDT (Wednesday, August 13, 2008 16:25 UTC)
LONG VALLEY VOLCANIC CENTER VOLCANO (CAVW#1203-14-)
37.70°N 118.87°W, Summit Elevation 11122 ft (3390 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
The realtime detection system located one small earthquake in the Long Valley caldera vicinity since the last update at 9:28 AM (PDT) on August 12. This was a magnitude M=1.8 earthquake at 11:49 PM on the 12th located in the Sierra Nevada 20 miles SSW of Mammoth Lakes (4 miles west of Lake Thomas A. Edison).
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LONG VALLEY OBSERVATORY CURRENT STATUS REPORT
Tuesday, August 12, 2008 09:28 PDT (Tuesday, August 12, 2008 16:28 UTC)
LONG VALLEY VOLCANIC CENTER VOLCANO (CAVW#1203-14-)
37.70°N 118.87°W, Summit Elevation 11122 ft (3390 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
The realtime detection system located two small earthquakes in the Long Valley caldera vicinity since the last update at 9:44 AM (PDT) on August 11. Both were located in the Sierra Nevada south of the caldera, and both had magnitudes less than M=1.5
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LONG VALLEY OBSERVATORY CURRENT STATUS REPORT
Monday, August 11, 2008 09:44 PDT (Monday, August 11, 2008 16:44 UTC)
LONG VALLEY VOLCANIC CENTER VOLCANO (CAVW#1203-14-)
37.70°N 118.87°W, Summit Elevation 11122 ft (3390 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
The realtime detection system located one small earthquake in the Long Valley caldera vicinity since the last update at 10:37 AM on August 10. This was a magnitude M=2.3 earthquake at 8:44 PM (PDT) on the 10th located 1 mile east of Grinnell Lake (9 miles SE of Mammoth Lakes).
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LONG VALLEY OBSERVATORY CURRENT STATUS REPORT
Sunday, August 10, 2008 10:37 PDT (Sunday, August 10, 2008 17:37 UTC)
LONG VALLEY VOLCANIC CENTER VOLCANO (CAVW#1203-14-)
37.70°N 118.87°W, Summit Elevation 11122 ft (3390 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
The realtime detection system registered two small earthquakes in the Long Valley caldera vicinity since the last update at 8:56 AM on August 8. The largest event, a magnitude M=2.4, was located under the north flank of Mammoth Mountain. The smaller, a magnitude M=1.0, was located in the Sierra Nevada near Round Valley.
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LONG VALLEY OBSERVATORY CURRENT STATUS REPORT
Friday, August 8, 2008 08:56 PDT (Friday, August 8, 2008 15:56 UTC)
LONG VALLEY VOLCANIC CENTER VOLCANO (CAVW#1203-14-)
37.70°N 118.87°W, Summit Elevation 11122 ft (3390 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
The realtime detection system registered one magnitude M=1.2 earthquake in the Long Valley caldera vicinity since the last update at 9:22 AM on August 7. The event was located in the Sierra Nevada south of the caldera.
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The Long Valley Observatory (LVO) monitors and studies earthquakes, ground deformation, degassing, and other types of geologic unrest in and around the Long Valley Caldera. The 15 by 30 km Long Valley Caldera was formed during an eruption 760,000 years ago and is located 20 km south of Mono Lake along the east side of the Sierra Nevada in east-central California. There have been multiple smaller eruptions since the caldera-forming eruption with the most recent occurring 250 years ago in Mono Lake at the north end of Mono-Inyo Craters volcanic chain. LVO is one of the five USGS Volcano Observatories that monitor volcanoes within the United States for science and public safety.
[link to volcano.wr.usgs.gov]
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/15/2008 8:59 PM
| | Re: Volcano update December 1, see pg 33 | Quote |
Alaska Volcano Observatory
Weekly Update
Friday, August 15, 2008 3:13 PM AKDT (23:13 UTC)
KASATOCHI VOLCANO
52°10'9" N 175°30'41" W, Summit Elevation 1030 ft (314 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Eruptive activity at Kasatochi volcano has declined gradually over the past week. Seismic activity is still being detected by the AVO seismic network on Great Sitkin Island 25 miles to the west and the volcano remains in a restless condition and is still considered hazardous to approach. The volcanic ash cloud produced by the eruption last week has dissipated and is no longer detected anywhere over Alaska in satellite data. A volcanic gas and aerosol cloud from the eruption is still present over parts of North America and the North Atlantic region, but has been dispersed by the wind and no longer is a single intact cloud.
AVO has received no new information about ash emissions or activity from passing pilots or mariners this week. Strong sulfur smell was reported by residents of Atka village yesterday and is likely coming from Kasatochi. The volcano is still quite restless and renewed eruptive activity remains a possibility. Should activity at the volcano resume, it is possible for ash clouds, ash fallout, and pyroclastic flows to develop and these could be as large or larger than those associated with the eruption on August 7.
CLEVELAND VOLCANO
52°49'20" N 169°56'42" W, Summit Elevation 5676 ft (1730 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Eruptive activity at Cleveland Volcano has occurred throughout the week, although the volcano has been obscured by clouds for a good portion of the week making observations by satellite difficult or impossible. Thermal anomalies at the summit were observed earlier in the week and a small ash plume was observed on the morning of August 12, but nothing has been observed since then. AVO has received no additional information or observations about activity at Cleveland.
Small ash bursts and low-level ash plumes may resume at the volcano. It is also possible for larger, higher reaching plumes to be produced without warning.
OKMOK VOLCANO
53°23'49" N 168°9'58" W, Summit Elevation 3520 ft (1073 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Eruptive activity continues at Okmok Volcano although the general intensity of the eruption has declined throughout the week. The seismic intensity and tremor duration are still above background levels suggesting that minor ash and steam emissions are still occurring.
The levels of seismicity observed throughout the week indicate that Okmok may be moving toward a less explosive phase within its current eruptive cycle. Though it remains possible for strong explosive eruptive activity to resume with little or no warning, the general trend of activity this week has been one of gradual decline.
OTHER ALASKA VOLCANOES
Seismic activity is monitored in real time at 30 volcanoes in Alaska. Satellite images of all Alaskan volcanoes are analyzed daily for evidence of ash plumes and elevated surface temperatures. Some volcanoes may currently display anomalous behavior but are not considered to be at a dangerous level of unrest. Augustine, Iliamna, Redoubt, Wrangell, Gareloi, Great Sitkin, Makushin, Fisher, Shishaldin, Isanotski, Pavlof, Veniaminof, Ugashik-Peulik, Griggs, Snowy, Fourpeaked, Aniakchak, Tanaga, Kanaga, Akutan, Westdahl, Dutton, Ukinrek Maars, Martin, Mageik, Trident, Katmai, Novarupta, Spurr, and Korovin volcanoes are in color code GREEN and volcano alert level Normal. All are at or near normal levels of background seismicity. AVO did not detect ash plumes or significant elevated surface temperatures in the vicinity of any volcano.
Please see [link to www.avo.alaska.edu]
VOLCANO INFORMATION ON THE INTERNET: [link to www.avo.alaska.edu]
RECORDING ON THE STATUS OF ALASKA'S VOLCANOES (907) 786-7478
CONTACT INFORMATION:
Chris Waythomas, Acting Scientist-in-Charge, USGS
chris@usgs.gov, (907)786-7497
Jon Dehn, Acting Coordinating Scientist, UAFGI
dehn@gi.alaska.edu (907) 474-6499
The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/15/2008 10:00 PM
| | Re: Volcano update December 1, see pg 33 | Quote |
CASCADES VOLCANO OBSERVATORY WEEKLY UPDATE
Friday, August 15, 2008 10:31 PDT (Friday, August 15, 2008 17:31 UTC)
Cascade Range Volcanoes
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN
NOTICE: Mount St. Helens has been at Volcano Alert Level NORMAL and Aviation Color Code GREEN for the past month; therefore, we are migrating from a Mount St. Helens weekly update to a Cascade Range weekly update. As long as all Cascade Range volcanoes are at Normal and Green, we will continue to issue Cascade Range weekly updates. If a Cascade Range volcano shows signs of unrest, we will issue an update for that particular volcano.
Activity Update: All volcanoes in the Cascade Range are at normal levels of background seismicity. These include Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, and Mount Adams in Washington State; Mount Hood, Mount Jefferson, Three Sisters, Newberry Volcano, and Crater Lake, in Oregon; and Medicine Lake, Mount Shasta, and Lassen Peak in northern California.
Recent Observations: The swarm of small, shallow earthquakes between Mount Shasta and Medicine Lake volcanoes that started on August 7 has stopped. The location and character of these earthquakes were consistent with a tectonic (non-volcanic) origin. However, because the swarm occurred in an area of scattered volcanic vents, we will continue to monitor the area closely. Volcano seismicity at Mount St. Helens has remained quiet, although several seismometers near Crater Glacier are recording small 'ice quakes' resulting from glacier movement. At Mount St. Helens this week, field crews performed maintenance on seismic stations and deployed targets for precision calibration of aerial photographs used in monitoring the crater. Hot, dry conditions and high winds have resulted in intermittently noticeable clouds of blowing ash within the crater and just above the crater rim, which could continue under current weather conditions.
[link to volcano.wr.usgs.gov]
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/17/2008 7:28 PM
| | Re: Volcano update December 1, see pg 33 | Quote |
Alaska Volcano Observatory
Current Status Report
Sunday, August 17, 2008 12:01 PM AKDT (20:01 UTC)
KASATOCHI VOLCANO
52°10'9" N 175°30'41" W, Summit Elevation 1030 ft (314 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Seismic activity at Kasatochi continues to be detected by the AVO seismic network on Great Sitkin Island 25 miles to the west. Clouds have obscured the volcano in satellite views. No plumes have been reported.
The volcano remains in a restless condition and is still considered hazardous to approach.
CLEVELAND VOLCANO
52°49'20" N 169°56'42" W, Summit Elevation 5676 ft (1730 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Clouds have obscured the volcano in satellite views. No plumes have been reported. Small ash bursts and low-level ash plumes may resume at the volcano. It is also possible for larger, higher reaching plumes to be produced without warning.
AVO monitors Cleveland volcano with satellite imagery as weather allows. The lack of a real-time seismic network at Cleveland means that AVO is unable to track local earthquake activity related to volcanic unrest. Short-lived explosions of ash that could exceed 20,000 ft above sea level can occur without warning and may go undetected on satellite imagery. Please see [link to www.avo.alaska.edu]
OKMOK VOLCANO
53°23'49" N 168°9'58" W, Summit Elevation 3520 ft (1073 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Eruptive activity continues at Okmok Volcano. The seismic intensity and tremor duration are still above background levels suggesting that minor ash and steam emissions are still occurring.
VOLCANO INFORMATION ON THE INTERNET: [link to www.avo.alaska.edu]
RECORDING ON THE STATUS OF ALASKA'S VOLCANOES (907) 786-7478
CONTACT INFORMATION:
John Power, Acting Scientist-in-Charge, USGS
jpower@usgs.gov (907) 786-7497
Jon Dehn, Acting Coordinating Scientist, UAFGI
dehn@gi.alaska.edu (907) 474-6499
The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/18/2008 4:10 PM
| | Re: Volcano update December 1, see pg 33 | Quote |
Chaiten area airport north view. Pretty constant cloud cover, so there's not been a good view of the plume this morning.
[ link to www.aipchile.cl]
This morning there are a few shots where you can see the plume just around the cloud cover. So, definitely still going at a fairly constant level. Once the weather clears a bit, I'm hoping that they'll check and see if the ash level is staying at the higher rate of silica noted a week or so ago.
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/18/2008 4:14 PM
| | Re: Volcano update December 1, see pg 33 | Quote |
Little new about Hawaii Kilauea Volcano, other than more minor deflation and a pretty constant out put of SO2 and ash.
HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
Monday, August 18, 2008 08:14 HST (Monday, August 18, 2008 18:14 UTC)
KILAUEA VOLCANO (CAVW#1302-01-)
19.42°N 155.29°W, Summit Elevation 4091 ft (1247 m)
Volcano Alert Level: WATCH
Aviation Color Code: ORANGE
This report on the status of Kilauea volcanic activity, in addition to maps, photos, and webcam images (available using the menu bar above), was prepared by the USGS Hawaiian Volcano Observatory (HVO). Hawai`i Volcanoes National Park status can be found at [link to www.nps.gov]
Activity Summary for last 24 hours: Kilauea summit continued to deflate and produce small amounts of ash and elevated amounts of sulfur dioxide gas from the Halema`uma`u vent. At the east rift eruption site, Pu`u `O`o cone continued to deflate and produce high amounts of sulfur dioxide gas; the TEB eruption was stable with lava flowing through tubes to the ocean.
Last 24 hours at Kilauea summit: Overnight, incandescence was weak and was barely recorded on the webcam.
An intermittently brownish plume is rising from the Halema`uma`u vent and being blown southwestward 200-300 m (650-1,000 ft) over the Ka`u Desert; the plume has turned brown three times this morning due to a series of hybrid/explosion seismic events and tremor bursts at 6:33, 6:45, and 7:12 am. Sulfur dioxide emission rates remained elevated and variable; the most recent average measurement was 600 tonnes/day on August 12 compared to 900 tonnes/day on August 7 and a pre-2008 background rate between 150-200 tonnes/day. GOES-WEST imagery shows the plume going southwest and inland of the coast.
Ash production continued to be up slightly, despite contamination by the recent strong winds. Vent sounds were muted this morning.
The summit tiltmeter network recorded minor oscillations before several offsets, each resembling abrupt inflation, that coincide with the string of hybrid/explosion seismic signals between 6:30 - 7:30 am. The network of GPS receivers that span the summit recorded contraction across the caldera.
Seismic tremor remained at moderate levels until interrupted by at least two hybrid/explosion seismic events and several tremor bursts between 6:30-7:30 am. The number of RB2S2BL earthquakes beneath Halema`uma`u Crater were slightly higher than background values (less than 40/d) but started to increase during the seismic activity this morning. Fourteen earthquakes were located beneath Kilauea: six were located beneath the south caldera, one beneath the southwest rift zone, two on Koa`e faults, two on south flank faults, one near the TEB vent, and two beneath an area directly west of the summit.
Last 24 hours at the middle east rift zone vents and flow field: Magma continued to degas through Pu`u `O`o Crater resulting in an emission of 2,400 tonnes/day of sulfur dioxide on August 8, down from a high of 7,100 tonnes/day on July 18 and near background values of about 2,000 tonnes/day. No incandescence was observed within the crater last night.
The tiltmeter on the north side of Pu`u `O`o cone recorded deflation. GPS receivers recorded weak contraction across the crater. Seismic tremor levels were at background levels near Pu`u `O`o and are decreasing to background levels near the TEB vent.
Lava from the TEB vent and the rootless shield field flows through tubes to the ocean. Overnight, no incandescence was visible from the rift zone to the top of the pali above the abandoned Royal Gardens subdivision. GOES-WEST imagery still registers a weak thermal anomaly at the coast this morning due probably to the recent but now inactive surface flows there.
[link to volcano.wr.usgs.gov]
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| awaking slowly
User ID: 487118
8/18/2008 6:14 PM
 | | Re: Volcano update December 1, see pg 33 | Quote |
Thank you Geogal for the nice email.
I really like you, October and the rest too.
I have nothing against anyone on this board.
Guess they just go a bit far when they don't agree with a post.
Thanks for the updates on the volcanoes. You seem to really be an expert on them.
I've been wanting to ask you if you think maybe this strange weather in the northeast US, could be from a volcano somewhere else?
We have barely had a summer. Just rain constantly. |
| Geogal
User ID: 373387 (OP)
8/18/2008 7:34 PM | | Re: Volcano update December 1, see pg 33 | Quote |
Thank you Geogal for the nice email.
I really like you, October and the rest too.
I have nothing against anyone on this board.
Guess they just go a bit far when they don't agree with a post.
Thanks for the updates on the volcanoes. You seem to really be an expert on them.
I've been wanting to ask you if you think maybe this strange weather in the northeast US, could be from a volcano somewhere else?
We have barely had a summer. Just rain constantly. Quoting: awaking slowly
LOL! Thanks for the compliment, Awakening Slowly, but I'm no expert on volcanoes... I just love to study and observe their conditions and reactions. I've been enjoying this thread also, mainly since it really the first time I've paid such close attention to so many different volcanoes. My expertise in geology lies in a different area, continental structural. Pretty boring for a site like this, but very interesting to me.
The latest volcano to go off, Kasatochi Alaska, has kicked out a bunch of SO2, but that's been really recent, a week-n half, not recent enough to mess up the weather like you seem to be experiencing. Otherwise, nothing in the northern or southern hemisphere to do what's implied. |
| Geogal
User ID: 373387 (OP)
8/18/2008 7:36 PM | | Re: Volcano update December 1, see pg 33 | Quote |
Chaiten area airport north view. Pretty constant cloud cover, so there's not been a good view of the plume this morning.
[ link to www.aipchile.cl]
This morning there are a few shots where you can see the plume just around the cloud cover. So, definitely still going at a fairly constant level. Once the weather clears a bit, I'm hoping that they'll check and see if the ash level is staying at the higher rate of silica noted a week or so ago.
There's a few shots this afternoon where you can clearly see the plume. The plume is flowing in an eastern direction then as the sun sets, starts flowing in a southern direction over the airport. Pretty good visuals! |
| Ossie bloke
User ID: 486917
8/18/2008 8:15 PM | | Re: Volcano update December 1, see pg 33 | Quote |
"If the compression of the rocks makes them produce electricity, which is then read in the ionosphere, you can hardly change the ionosphere to make an earthquake.
Its not a two way trip, one is conditional to the other."
Geogal, that is patently wrong. There are stresses in Earth's crust that are on the verge of breaking. The great Ache earthquake is a case in point. It was known years back that it was going to break and all it took was a small ionospheric signal of the right frequency to trigger it off.
It is a two way trip.
Some volcanic eruptions can be triggered as well, no problemo. |
| Geogal
User ID: 373387 (OP)
8/18/2008 9:27 PM | | Re: Volcano update December 1, see pg 33 | Quote |
"If the compression of the rocks makes them produce electricity, which is then read in the ionosphere, you can hardly change the ionosphere to make an earthquake.
Its not a two way trip, one is conditional to the other."
Geogal, that is patently wrong. There are stresses in Earth's crust that are on the verge of breaking. The great Ache earthquake is a case in point. It was known years back that it was going to break and all it took was a small ionospheric signal of the right frequency to trigger it off.
It is a two way trip.
Some volcanic eruptions can be triggered as well, no problemo. Quoting: Ossie bloke 486917
I've not seen any actual scientific papers on this, only peoples opinion without real backing. So, if you wish to believe, then that's your choice. If you have reliable information, there's plenty out there who'd love to read it.
I understand about the earth stresses on the verge, that's a given for many many areas, but as human triggering specific incidents... never read a single reliable paper upon it... and I have looked. |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/18/2008 9:36 PM
| | Re: Volcano update December 1, see pg 33 | Quote |
Chaiten area airport north view. Pretty constant cloud cover, so there's not been a good view of the plume this morning.
[ link to www.aipchile.cl]
There's a few shots this afternoon where you can clearly see the plume. The plume is flowing in an eastern direction then as the sun sets, starts flowing in a southern direction over the airport. Pretty good visuals!
From web cam today just prior sunset in Chile 8/18/08
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/18/2008 10:34 PM
| | Re: Volcano update December 1, see pg 33 | Quote |
Alaska Volcano Observatory
Current Status Report
Monday, August 18, 2008 12:35 PM AKDT (20:35 UTC)
KASATOCHI VOLCANO
52°10'9" N 175°30'41" W, Summit Elevation 1030 ft (314 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Seismic activity at Kasatochi continues to be detected by the AVO seismic network on Great Sitkin Island 25 miles to the west. Clouds have obscured the volcano in satellite views. No plumes have been observed, but people on Adak reported smelling sulfur Sunday afternoon.
The volcano remains in a restless condition and is still considered hazardous to approach. Further explosive eruptive activity remains possible.
CLEVELAND VOLCANO
52°49'20" N 169°56'42" W, Summit Elevation 5676 ft (1730 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Clouds have obscured the volcano in satellite views. No plumes or other observations of activity have been reported. Small ash bursts and low-level ash plumes may resume at the volcano. It is also possible for larger, higher reaching plumes to be produced without warning.
AVO monitors Cleveland volcano with satellite imagery as weather allows. The lack of a real-time seismic network at Cleveland means that AVO is unable to track local earthquake activity related to volcanic unrest. Short-lived explosions of ash that could exceed 20,000 ft above sea level can occur without warning and may go undetected on satellite imagery. Please see [link to www.avo.alaska.edu]
OKMOK VOLCANO
53°23'49" N 168°9'58" W, Summit Elevation 3520 ft (1073 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Eruptive activity continues at Okmok Volcano. The seismic intensity and tremor duration are still above background levels. Satellite data from the past 12 hours indicates small ash emissions have occurred intermittently and are drifting generally to the south and not reaching higher than 10,000 to 15,000 feet.
Okmok continues to produce ash and mixed ash and steam clouds. Given the level of unrest at the volcano, it remains possible for vigorous ash emissions to occur at any time, and ash plumes higher than 15,000 feet remain a possibility.
VOLCANO INFORMATION ON THE INTERNET: [link to www.avo.alaska.edu]
RECORDING ON THE STATUS OF ALASKA'S VOLCANOES (907) 786-7478
CONTACT INFORMATION:
John Power, Acting Scientist-in-Charge, USGS
jpower@usgs.gov (907) 786-7497
Jon Dehn, Acting Coordinating Scientist, UAFGI
dehn@gi.alaska.edu (907) 474-6499
The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Anonymous Coward
User ID: 482455
8/18/2008 10:38 PM | | Re: Volcano update December 1, see pg 33 | Quote |
Volcanos don't exist.
;) |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/19/2008 10:29 AM
| | Re: Volcano update December 1, see pg 33 | Quote |
Llaima update, 18 August 2008 18 August 2008
Posted by volcanismblog
[link to volcanism.wordpress.com]
The most recent SERNAGEOMIN bulletin on Llaima (12 August 2008) noted that the volcano was showing activity similar to that of previous days. The pyroclastic cone within the main crater, which has been the seat of recent eruptions, was producing ‘an intense and continuous emission of steam, with small quantities of volcanic gases’; seismicity was reported to be at a low level. On 13 August weak ash emissions and nocturnal incandescence were reported by the POVI Llaima observation project.
Today from POVI comes news that Llaima is erupting once again with sporadic weak ash emissions that are being carried to the east by strong winds. The following picture comes from POVI and shows clearly the pulses of ash cloud produced by the activity within the main crater.
Many thanks to our friends at POVI for this information and the image, which is copyright POVI. Information about and pictures of all recent and current activity can be found of course at POVI’s Llaima site
[link to www.povi.cl]
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/19/2008 10:32 AM
| | Re: Volcano update December 1, see pg 33 | Quote |
Chaiten area airport north view. Pretty constant cloud light and high cover, so there's been a good view of the plume this morning adding to the clouds. Quite a cool image especially when the video is played, click <empezar>.
[link to www.aipchile.cl]
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
User ID: 373387 (OP)
8/19/2008 5:07 PM | | Re: Volcano update December 1, see pg 33 | Quote |
Alaska Volcano Observatory
Current Status Report
Tuesday, August 19, 2008 12:25 PM AKDT (20:25 UTC)
OKMOK VOLCANO
53°23'49" N 168°9'58" W, Summit Elevation 3520 ft (1073 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Eruptive activity continues at Okmok Volcano. Low-level ash emissions have been observed in satellite data at Okmok though most of the past 24 hours. However, since 14:30 UTC today the level of seismic activity has gradually decreased to near pre-eruption levels. Satellite data show that ash is no longer being emitted since seismicity levels decreased.
Given the level of unrest at the volcano, it remains possible for vigorous ash emissions to occur at any time, and ash plumes higher than 15,000 feet remain a possibility.
KASATOCHI VOLCANO
52°10'9" N 175°30'41" W, Summit Elevation 1030 ft (314 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Seismic activity at Kasatochi continues to be detected by the AVO seismic network on Great Sitkin Island 25 miles to the west. Clear satellite views yesterday showed a steam plume from the volcano's summit.
The volcano remains in a restless condition and is still considered hazardous to approach. Further explosive eruptive activity remains possible.
CLEVELAND VOLCANO
52°49'20" N 169°56'42" W, Summit Elevation 5676 ft (1730 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Partly cloudy satellite views over the past day show a weak thermal anomaly at Cleveland volcano. No plume has been observed.Small ash bursts and low-level ash plumes may resume at the volcano. It is also possible for larger, higher reaching plumes to be produced without warning.
AVO monitors Cleveland volcano with satellite imagery as weather allows. The lack of a real-time seismic network at Cleveland means that AVO is unable to track local earthquake activity related to volcanic unrest. Short-lived explosions of ash that could exceed 20,000 ft above sea level can occur without warning and may go undetected on satellite imagery. Please see [link to www.avo.alaska.edu]
OTHER ALASKA VOLCANOES
Seismic activity is monitored in real time at 30 volcanoes in Alaska. Satellite images of all Alaskan volcanoes are analyzed daily for evidence of ash plumes and elevated surface temperatures. Some volcanoes may currently display anomalous behavior but are not considered to be at a dangerous level of unrest. Augustine, Iliamna, Redoubt, Wrangell, Gareloi, Great Sitkin, Makushin, Fisher, Shishaldin, Isanotski, Pavlof, Veniaminof, Ugashik-Peulik, Griggs, Snowy, Fourpeaked, Aniakchak, Tanaga, Kanaga, Akutan, Westdahl, Dutton, Ukinrek Maars, Martin, Mageik, Trident, Katmai, Novarupta, Spurr, and Korovin volcanoes are in color code GREEN and volcano alert level Normal. All are at or near normal levels of background seismicity. AVO did not detect ash plumes or significant elevated surface temperatures in the vicinity of any volcano.
Please see [link to www.avo.alaska.edu]
VOLCANO INFORMATION ON THE INTERNET: [link to www.avo.alaska.edu]
RECORDING ON THE STATUS OF ALASKA'S VOLCANOES (907) 786-7478
CONTACT INFORMATION:
John Power, Acting Scientist-in-Charge, USGS
jpower@usgs.gov (907) 786-7497
Jon Dehn, Acting Coordinating Scientist, UAFGI
dehn@gi.alaska.edu (907) 474-6499
The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys. |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/19/2008 6:51 PM
| | Re: Volcano update December 1, see pg 33 | Quote |
HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
Tuesday, August 19, 2008 07:40 HST (Tuesday, August 19, 2008 17:40 UTC)
KILAUEA VOLCANO (CAVW#1302-01-)
19.42°N 155.29°W, Summit Elevation 4091 ft (1247 m)
Volcano Alert Level: WATCH
Aviation Color Code: ORANGE
This report on the status of Kilauea volcanic activity, in addition to maps, photos, and webcam images (available using the menu bar above), was prepared by the USGS Hawaiian Volcano Observatory (HVO). Hawai`i Volcanoes National Park status can be found at [link to www.nps.gov]
Activity Summary for last 24 hours: Kilauea summit continued to produce small amounts of ash and elevated amounts of sulfur dioxide gas from the Halema`uma`u vent. At the east rift eruption site, Pu`u `O`o cone continued to produce high amounts of sulfur dioxide gas; the TEB eruption was stable with lava flowing through tubes to the ocean.
Last 24 hours at Kilauea summit: Overnight, incandescence continued to be weak and was barely recorded on the webcam; one flash of brighter incandescence followed a local earthquake at 03:44 am.
A white plume is rising from the Halema`uma`u vent and being blown low and southwestward over the Ka`u Desert. Sulfur dioxide emission rates remained elevated and variable; the most recent average measurement was 600 tonnes/day on August 12 compared to 900 tonnes/day on August 7 and a pre-2008 background rate between 150-200 tonnes/day. GOES-WEST imagery shows the plume going southwest and along the coast from Ka`aha.
The NPS eruption crew reported that vent sounds were occasionally audible from Jaggar museum yesterday morning. Ash production continued; this morning's collections were dominated by fine rock dust from yesterday's explosions.
The summit tiltmeter network recorded minor oscillations but no net change. The network of GPS receivers that span the summit also recorded no net change across the caldera.
Seismic tremor remained at moderate levels. The number of RB2S2BL earthquakes beneath Halema`uma`u Crater increased to more than 100/d compared to background values of less than 40/d. Seventeen earthquakes were located beneath Kilauea: six were located beneath the area immediately west of the summit, four beneath the southern summit caldera, one beneath the southwest rift zone, and six on south flank faults.
Last 24 hours at the middle east rift zone vents and flow field: Magma continued to degas through Pu`u `O`o Crater resulting in an emission of 2,400 tonnes/day of sulfur dioxide on August 8, down from a high of 7,100 tonnes/day on July 18 and near background values of about 2,000 tonnes/day. No incandescence was observed within the crater last night.
The tiltmeter on the north side of Pu`u `O`o cone recorded minor oscillations but no significant change. GPS receivers recorded no significant change in distance across the crater. Seismic tremor levels were at background levels near Pu`u `O`o and were decreasing to background levels near the TEB vent before a small but abrupt increase in value just before 1 pm yesterday; the increase was followed by intermittent tremor bursts.
Lava from the TEB vent and the rootless shield field flows through tubes to the ocean. Overnight, no incandescence was visible from the rift zone to the top of the pali above the abandoned Royal Gardens subdivision. GOES-WEST imagery still registers a weak thermal anomaly at the coast this morning due probably to the recent but now inactive surface flows there.
[link to volcano.wr.usgs.gov]
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
| Geogal
Hu ka pele, lava pour forth
User ID: 373387
8/20/2008 11:03 AM
| | Re: Volcano update December 1, see pg 33 | Quote |
Chaiten area airport north view. Pretty constant cloud light and high cover, so there's been a good view of the plume this morning adding to the clouds. Quite a cool image especially when the video is played, click <empezar>.
[ link to www.aipchile.cl]
Again, beautiful morning in Chile to view Chaiten!
Woman of white garment, foreign woman, earth-eating woman, taking and giving life, she is Pele
"ONCE IN HIS LIFE, EVERY MAN IS ENTITLED TO FALL MADLY IN LOVE WITH A GORGEOUS REDHEAD" - LUCILLE BALL |
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