ALASKA VOLCANO OBSERVATORY STATUS REPORT
U.S. Geological Survey
Monday, June 12, 2017, 9:29 PM AKDT (Tuesday, June 13, 2017, 05:29 UTC)

BOGOSLOF VOLCANO (VNUM #311300)
53°55'38" N 168°2'4" W, Summit Elevation 492 ft (150 m)
Current Volcano Alert Level: WARNING
Current Aviation Color Code: RED

The explosive eruptive activity that began tonight at 1:47 UTC June 13 (17:47 AKDT June 12) has ended or has paused. This sequence thus far is characterized by a series of explosive events lasting 10-30 minutes long, emitting volcanic clouds that rose to a maximum height of 25,000 ft asl, and dissipated within about 30 minutes. The last major pulse of explosive activity ended at 04:35 UTC June 13 (20:35 AKDT June 12). Bogoslof volcano remains at a heightened state of unrest and in an unpredictable condition. Additional explosions producing high-altitude volcanic clouds could occur at any time.

The Aviation Color Code remains at RED and the Alert Level remains at WARNING. AVO will continue to monitor the volcano using all available data streams.

Status of the ash cloud forecast can be found at the National Weather Service Alaska Aviation Weather Unit website at http://www.weather.gov/aawu/sigmets

OTHER ALASKA VOLCANOES

Information on all Alaska volcanoes is available at : http://www.avo.alaska.edu.

For definitions of Aviation Color Codes and Volcano Alert Levels, see: http://www.avo.alaska.edu/color_codes.php

SUBSCRIBE TO VOLCANO ALERT MESSAGES by email: http://volcanoes.usgs.gov/vns/

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CONTACT INFORMATION:

Michelle Coombs, Scientist-in-Charge, USGS
mcoombs@usgs.gov (907) 786-7497

Jeff Freymueller, Coordinating Scientist, UAF
jfreymueller@alaska.edu (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.

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