Printer friendly versionALASKA VOLCANO OBSERVATORY WEEKLY UPDATEFriday, June 13, 2008 12:10 PM AKDT (Friday, June 13, 2008 20:10 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
Conditions have been mostly to partly cloudy at the volcano during the past week and no evidence of eruptive activity or ash clouds was observed. A minor thermal anomaly appeared in satellite images during the last 24 hours, with no other activity noted. Web camera views continue to show fog, with only an occasional brief glimpse of the lower flanks of the volcano. AVO has received no reports of ash emissions or other activity.
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 producing local ash fall and diffuse ash clouds that could exceed 20,000 ft above sea level can occur without warning. Such ash clouds may be difficult or impossible to detect in satellite imagery. Please see http://www.avo.alaska.edu/activity/Cleveland.php
for more information.OTHER ALASKA VOLCANOES
Seismic activity is monitored in real time at 31 volcanoes in Alaska. Satellite images of all Alaskan volcanoes are analyzed daily for evidence of ash plumes and elevated surface temperatures. Some volcanoes may currently display anomalous behavior but are not considered to be at a dangerous level of unrest. Wrangell, Spurr, Redoubt, Iliamna, Augustine, Fourpeaked, Snowy, Katmai, Griggs, Trident, Novarupta, Mageik, Martin, Ugashik-Peulik, Ukinrek Maars, Aniakchak, Veniaminof, Pavlof, Dutton, Isanotski, Shishaldin, Fisher, Westdahl, Akutan, Makushin, Okmok, Korovin, Great Sitkin, Kanaga, Tanaga, and Gareloi volcanoes are in color code GREEN
and volcano alert level Normal. All are at or near normal levels of background seismicity. AVO did not detect ash plumes or significant elevated surface temperatures in the vicinity of any volcano.
Please see http://www.avo.alaska.edu/color_codes.php
for complete definitions of Aviation color codes and Volcanic activity alert levels.
VOLCANO INFORMATION ON THE INTERNET: http://www.avo.alaska.edu
RECORDING ON THE STATUS OF ALASKA'S VOLCANOES (907) 786-7478
Christina Neal, Acting Scientist-in-Charge, USGS
email@example.com (907) 786-7497
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.