ALASKA VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Saturday, December 24, 2016, 12:42 PM AKST (Saturday, December 24, 2016, 21:42 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

Unrest continues at Bogoslof volcano. Seismicity attributed to the ongoing unrest has been periodically visible on nearby island networks in the past 24 hours, but levels have been generally low since the explosion yesterday. No activity was observed in mostly cloudy satellite images or infrasound data in the past 24 hours. The situation at Bogoslof remains unpredictable and explosive activity could occur with little to no warning, and the Color Code/Alert Level remains at RED/WARNING.

AVO has no ground-based volcano monitoring equipment on Bogoslof volcano. We are monitoring eruptive activity using satellite images and data from distant seismic and infrasound instruments.

PAVLOF VOLCANO (VNUM #312030)
55°25'2" N 161°53'37" W, Summit Elevation 8261 ft (2518 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

No significant activity was observed in mostly clear satellite images today. Web camera images were obscured by low clouds. Nothing significant was detected in seismic or pressure sensor data during the past day.

The degree of unrest at Pavlof can change quickly. A return to eruptive activity can occur with with little or no warning. AVO is closely monitoring the volcano.

CLEVELAND VOLCANO (VNUM #311240)
52°49'20" N 169°56'42" W, Summit Elevation 5676 ft (1730 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

No significant activity observed in mostly clear satellite images today. No significant activity was detected in seismic or pressure sensor data during the past 24 hours.

OTHER ALASKA VOLCANOES

Other Alaska volcanoes show no signs of significant unrest: http://www.avo.alaska.edu/activity/

AVO scientists conduct daily checks of earthquake activity at all seismically-monitored volcanoes, examine web camera and satellite images for evidence of airborne ash and elevated surface temperatures, and consult other monitoring data as needed.

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

FOR MORE INFORMATION ON ALASKA VOLCANOES: http://www.avo.alaska.edu

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

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FOLLOW AVO ON TWITTER: https://twitter.com/alaska.avo

CONTACT INFORMATION:

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

Janet Schaefer, Acting Coordinating Scientist, DGGS
janet.schaefer@alaska.gov (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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