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Geologists spot steam plume over Redoubt volcano

 
Anonymous Coward
User ID: 633364
Canada
03/21/2009 03:32 PM
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Geologists spot steam plume over Redoubt volcano
Geologists spot steam plume over Redoubt
(Published March 21, 2009)
ANCHORAGE, Alaska Alaska's Mount Redoubt is again drawing attention because of its potential for an explosive volcano.

Geologists at the Alaska Volcano Observatory say there's a steam plume rising about 1,000 feet above the mountain roughly 100 miles southwest of Anchorage.

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No explosive or ash activity such as occurred last Sunday has been identified and the observatory has not raised the warning level for the mountain.

The observatory says shallow earthquake activity under the volcano that began Friday continues, at times with one event per minute.

Activity has been detected primarily at stations nearest the summit.

Geologists say seismic activity or other signs of unrest could escalate over periods as short as 24 hours or less.

[link to www.fortmilltimes.com]
SubarcticBeef

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03/21/2009 03:56 PM
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Re: Geologists spot steam plume over Redoubt volcano
Interesting. Thanks for the update.
Large and Powerful
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Anonymous Coward
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03/21/2009 04:27 PM
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Re: Geologists spot steam plume over Redoubt volcano
Geologists spot steam plume over Redoubt

 Quoting: Anonymous Coward 633364


2009-03-21 08:50:16 - Information Statement
Shallow earthquake activity under the volcano that began yesterday continues, at times approaching one event per minute. Activity is primarily seen on the stations nearest the summit, though some events are also recorded at farther-out stations. A steam plume rising approximately a thousand feet above the volcano is visible on the Cook Inlet Redoubt web camera, but no explosive or ash activity such as occurred last Sunday has been identified. AVO is watching the activity closely but remaining at Yellow/Advisory at this time.

It is still possible for unrest at the volcano to change rapidly, and seismic activity or other signs of unrest could escalate over time periods as short as 24 hours or less. Minor explosive activity such as was seen March 15 could occur with little or no warning.

A field crew is scheduled to install another seismometer at the volcano today


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Anonymous Coward (OP)
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03/21/2009 04:40 PM
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Re: Geologists spot steam plume over Redoubt volcano
Interesting. Thanks for the update.
 Quoting: SubarcticBeef



yw


bump for Anchorage and environs
Anonymous Coward
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03/21/2009 04:54 PM
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Re: Geologists spot steam plume over Redoubt volcano
Redoubt pic

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Anonymous Coward
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03/22/2009 01:27 PM
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Re: Geologists spot steam plume over Redoubt volcano
Today seismic activity has increased. Helicorder
at this writing is showing small earthquakes occurring
if 1-2 per minute. RSAM has been on the rise. AVO has raised Alert level back up to Orange. Merits watching.

[link to www.avo.alaska.edu]
Anonymous Coward
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03/22/2009 02:51 PM
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Re: Geologists spot steam plume over Redoubt volcano
[link to www.avo.alaska.edu]


update on Redoubt has changed from yellow to orange:

Seismicity rates have increased dramatically over the last 48 hours. Currently, the earthquake rate is about 40 to 50 events per hour. Many of these events are large enough to be recorded at the more distal stations of the Redoubt network, including NCT and DFR.
Anonymous Coward
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03/22/2009 02:53 PM
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Re: Geologists spot steam plume over Redoubt volcano
[link to www.avo.alaska.edu]





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