Printer friendly versionALASKA VOLCANO OBSERVATORY WEEKLY UPDATEFriday, September 17, 2010 2:01 PM AKDT (Friday, September 17, 2010 22:01 UTC)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
The volcano alert level/aviation color code at Cleveland was raised from unassigned to ADVISORY/YELLOW
on September 12 based on the presence of thermal anomalies and possible minor ash plumes visible in satellite images. Thermal anomalies persisted through mid-week until clouds obscured the view. There have been no other reports of activity.
Without a real-time seismic network at Cleveland, AVO is unable to track local earthquake activity related to volcanic unrest. Short-lived explosions with ash clouds that could exceed 20,000 ft above sea level can occur without warning and may go undetected on satellite imagery for hours. Low-level ash emissions at Cleveland occur frequently and do not necessarily mean a larger eruption is imminent. AVO continues to monitor the volcano using satellite imagery.
Chris Waythomas, Acting Scientist-in-Charge, USGS
email@example.com (907) 786-7497
Steve McNutt, Coordinating Scientist, UAF
firstname.lastname@example.org (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.