Geologists spot steam plume over Redoubt volcano

Interesting. Thanks for the update.

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


.

yw


for Anchorage and environs

Redoubt pic

[link to img240.imageshack.us]

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]

[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.

[link to www.avo.alaska.edu]