Printer friendly versionAVO/USGS Volcanic Activity Notice
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE
Tuesday, January 17, 2017, 8:56 AM AKST
Alaska Volcano Observatory
N 53 deg 55 min W 168 deg 2 min
492 ft (150 m)
Volcanic Activity Summary: Increased seismic activity over the past several hours indicates that minor explosive activity is occurring at Bogoslof. The level of activity is variable, with the most energetic events observed around 1500 UTC and 1640 UTC (4:00 and 7:40 am AKST). Minor emissions of steam and minor amounts of volcanic ash observed in satellite data around 1500 and 1730 UTC. These events were too small to generate detectable lightning or infrasound (pressure) signals. The National Weather Service has estimated a maximum altitude for these small clouds at 15,000 ft above sea level. Satellite data showed that they dissipated quickly. The volcano remains restless and additional explosive events could occur with little warning.
[Volcanic cloud height] 15,000 ft asl (maximum)
[Other volcanic cloud information] Minor emissions visible in satellite data
Status of the ash cloud can be found at the Alaska Aviation Weather Unit website at http://aawu.arh.noaa.gov/
Michelle Coombs, Scientist-in-Charge, USGS
email@example.com (907) 786-7497
Jeff Freymueller, Coordinating Scientist, UAFGI
firstname.lastname@example.org (907) 322-4085
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.