Printer friendly versionALASKA VOLCANO OBSERVATORY CURRENT STATUS REPORTSunday, July 20, 2008 11:24 AM AKDT (Sunday, July 20, 2008 19:24 UTC)OKMOK VOLCANO
53°23'49" N 168°9'58" W, Summit Elevation 3520 ft (1073 m)
Current Volcano Alert Level: WARNING
Current Aviation Color Code: RED
The eruption of Okmok Volcano continues. Seismicity has declined somewhat over the last 5 hours. Instead of nearly continuous volcanic tremor, we are now observing discrete seismic events occurring every 10 to 15 minutes. Satellite data from 06:30 AKDT (14:30 UTC) revealed a plume about 20 km from Okmok, drifting SE at about 12,000 feet above sea level.
Please see http://www.avo.alaska.edu/activity/Okmok.php
for more information.CLEVELAND VOLCANO
52°49'20" N 169°56'42" W, Summit Elevation 5676 ft (1730 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW
Satellite and webcam views were cloudy again today. AVO received no other reports of activity at Cleveland this week.
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 http://www.avo.alaska.edu/activity/Cleveland.php
for more information.
John Power, Acting Scientist-in-Charge, USGS
Steve McNutt, Coordinating Scientist, UAFGI
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.