Activity at Okmok has dampened a bit though there is still a ash cloud up to 25K feet. Cleveland hasn’t been visible for a day or 2 but satellite imagry suggests there’s lava present on the surface. For an update on the Chaiten eruption in Chile check out Dr. Erik Klemetti’s blog: Eruptions.
OKMOK VOLCANO
53°23′49″ N 168°9′58″ W, Summit Elevation 3520 ft (1073 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
The amplitude and duration of seismic activity has decreased since yesterday. Satellite data indicate ash is rising to 20,000 to 22,000 feet. As a result of the decreased seismicity, AVO lowered the Aviation Color Code and Volcano Alert Level from RED/WARNING to ORANGE/WATCH this morning at 11:01 AM AKDT. Stronger explosive activity could resume at any time with little or no warning.
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 Aviation Color Code: ORANGE
Current Volcano Alert Level: WATCH
Despite cloudy conditions, thermal anomalies seen in satellite views today suggest the presence of lava on the surface near Cleveland’s summit.
Please see http://www.avo.alaska.edu/activity/Okmok.php for more information.
CONTACT INFORMATION:
John Power, Acting Scientist-in-Charge, USGS
jpower@usgs.gov, (907)786-7497
Steve McNutt, Coordinating Scientist, UAFGI
steve@giseis.alaska.edu (907)978-5458
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.
