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Message Subject The monsters wakes up ! Katla Hekla Iceland Dead Zone and rift as uniform system ! A lot of others worldwide !
Poster Handle Anonymous Coward
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Recent Kilauea Status Reports, Updates, and Information Releases
Monday, November 12, 2012 9:20 AM HST (Monday, November 12, 2012 19:20 UTC)

Recent Observations at Kilauea summit: Summit tilt, as recorded by a network of tiltmeters located around the summit caldera, recorded a second weak DI deflation after the 27-hour-long DI event yesterday; the long-term trend since the strong DI inflation on November 8 has been slow inflation. The summit lava lake level dropped a little with the weak deflation yesterday but rose more dramatically during the now-ended period of DI inflation overnight; the lake level is still well below the inner ledge.

Recent Observations at the middle east rift zone vents:
Surface flows continued to be active within the abandoned Royal Gardens subdivision, with flows advancing seaward across the coastal plain. Breakouts also continued low on the pali and on the coastal plain at the base of the pali. Webcam views showed the flow front nearest the coast continued to advance closer to the ocean overnight;
if these flow lobes continued to advance at this rate, they could enter the ocean in the next few days.
The flows were following along the easternmost boundary of Hawai`i Volcanoes National Park.
 Quoting: Anonymous Coward 1534695

HAZARD ALERT: Lava entering the ocean builds lava deltas. The lava delta and adjacent areas both inland and out to sea are some of the most hazardous areas on the flow field. Frequent delta/bench collapses give little warning, can produce hot rock falls inland and in the adjacent ocean, and can produce damaging local waves. The steam plume produced by lava entering the ocean contains fine lava fragments and an assortment of acid droplets that can be harmful to your health. The rapidly changing conditions near the ocean entry have been responsible for many injuries and a few deaths
[link to hvo.wr.usgs.gov]
 Quoting: Anonymous Coward 1534695

[link to hvo.wr.usgs.gov]

This graph shows the radial tilt at Uwekahuna (UWE), on the northwest rim of Kīlauea's caldera, and at Pu`u `O `O cone (POC), on the northwest flank of the active vent along the east rift zone, as recorded by continuously operating electronic tiltmeters:
[link to hvo.wr.usgs.gov]

This graph shows the change in distance between two Global Positioning System (GPS) stations located on opposite ides of Kīlauea's caldera. A rapid increase in distance can be interpreted as inflation of the summit magma reservoir. The graph is refreshed once per day:
[link to hvo.wr.usgs.gov]

[link to hvo.wr.usgs.gov]
It's still puzzling that last month's buildup slowed without triggering a major change in the eruption, such as a large intrusion or fissure eruption. We may gain some insight on this by reviewing observations in the early 1900s, when early HVO staff made careful observations of summit lava lake level and earthquakes. Several times, rising lava levels culminated in rift-zone eruptive events, including the 1919 Mauna Iki eruption and 1922 and 1923 eruptions near Makaopuhi Crater.
But several times between 1920 and 1922, rapidly rising lava levels peaked and then quietly returned to normal levels without eruption. If we view the rift zone eruptive events as a pressure release "valve" on the magmatic system, then the periods of rising level that do not result in rift eruptions imply that Kīlauea has other internal pressure-release mechanisms.
We may have witnessed just such an internal pressure adjustment, but we're not out of the woods yet. Our network of GPS receivers recorded only a cessation of summit swelling but no appreciable contraction since late October. Despite the changes since October 26, there remains an elevated chance of a change in the ongoing eruption.
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