ALASKA VOLCANO OBSERVATORY DAILY UPDATE U.S. Geological Survey Wednesday, March 30, 2016, 12:11 PM AKDT (Wednesday, March 30, 2016, 20:11 UTC)
55°25'2" N 161°53'37" W,
Summit Elevation 8261 ft (2518 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE
The eruption of Pavlof Volcano has greatly diminished in intensity over the past day. Cloudy conditions have obscured views of the volcano in satellite and web camera images, but elevated surface temperatures at the summit and intermittent, low-level ash emissions have been observed during brief breaks in the weather. Seismic activity remains elevated at levels above background and over the past 24 hours has been characterized by occasional short-duration tremor bursts, likely associated with the low-level ash emissions. The drifting, remnant ash cloud from the energetic phase of the eruption on Sunday and Monday has dispersed and there are no National Weather Service aviation or ashfall advisories in effect at this time.
Although the intensity of the eruption has diminished, it is possible for conditions to change at any time and more significant ash emissions may resume with little to no warning. Pauses of days to weeks are common during eruptive episodes at Pavlof. AVO will continue to monitor the volcano closely.
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 partly cloudy satellite views of the volcano over the past 24 hours. No signals of note were detected in seismic or infrasound (pressure sensor) data.
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.
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.