ALASKA VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Saturday, December 6, 2014, 12:00 PM AKST (Saturday, December 6, 2014, 21:00 UTC)

SHISHALDIN VOLCANO (VNUM #311360)
54°45'19" N 163°58'16" W, Summit Elevation 9373 ft (2857 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Seismic activity remains above background over the past 24 hours. Clear satellite images this morning showed thermal features at the summit of Shishaldin. Web camera views were obscured by water or ice on the camera window. A low-level lava eruption is probably still occurring within the summit crater of the volcano.

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

Seismicity at the volcano has been slightly above background levels over the past 24 hours. Weak thermal features on the northwest flank of the volcano have been observed in satellite data over the past day and are consistent with cooling lava emplaced a few weeks ago. Clear web camera views show no steaming from the summit today. Pauses in vigorous eruptive activity of days to weeks are common during eruptive episodes of Pavlof Volcano, and a return to more robust eruptive activity remains possible and could occur with little or no warning.

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

Clear satellite images of Cleveland Volcano show possible elevated surface temperatures over the past day. Steaming at the summit was observed in web camera views from yesterday afternoon. No significant activity was detected in seismic or infrasound data.

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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CONTACT INFORMATION:

John Power, Scientist-in-Charge, USGS
jpower@usgs.gov (907) 786-7497

Jeff Freymueller, Coordinating Scientist, UAFGI
jeff.freymueller@gi.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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