AVO uses several different types of data to monitor volcanoes for signs of unrest or eruptive activity. The data displayed here have not been reviewed in any way, and are preliminary unless reviewed by an AVO geoscientist.
0000 UTC= 4:00 PM AKDT on the previous day as UTC 0600 UTC = 10:00 PM AKDT on the previous day as UTC
1200 UTC= 4:00 AM AKDT on the same day as UTC 1800 UTC = 10:00 AM AKDT on the same day as UTC
RED LINES indicate either a calibration pulse, or where the signal was clipped
(too large to be recorded on the scale of the webicorder).
Kasatochi 24 hour webicorder
Because there is no instrumentation on Kasatochi, this webicorder plot comes from a seismic station on Great Sitkin volcano, approximately 30 miles to the west of Kasatochi. There is a problem with the power at the telemetry hub in Adak since April 13th, 2009.