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ALASKA VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Monday, June 15, 2020, 3:09 PM AKDT (Monday, June 15, 2020, 23:09 UTC)
53°53'24" N 166°55'30" W,
Summit Elevation 5906 ft (1800 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN
An earthquake with a preliminary magnitude of 4.2 occurred under Makushin Volcano at 21:16 UTC (2:16 pm AKDT). It was located 10 km (6.2 miles) SE of the summit of Makushin at a depth of 8.6 km (5.3 miles), and was felt in the community of Unalaska. Small aftershocks are continuing, as is typical for an earthquake of this size. The magnitude and location of the earthquake are preliminary and subject to small changes as analysis continues. AVO is evaluating this earthquake to determine whether it is related to volcanic unrest and will provide additional information when it becomes available. Makushin in monitored by a network of seismic stations, web camera, GPS, satellite images, and regional infrasound and lightning detection data.
Makushin Volcano is located on northern Unalaska Island in the eastern Aleutian Islands. Makushin is a broad, ice-capped stratovolcano which rises to an elevation of 6680 feet. The summit caldera, 3 km diameter, is the site of frequent steam and minor ash eruptions; however, no large eruptions have occurred in this century. The community of Unalaska and port of Dutch Harbor are located 25 km (16 miles) east of Makushin volcano.
OTHER ALASKA VOLCANOES
Information on all Alaska volcanoes is available at : http://www.avo.alaska.edu.
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Michelle Coombs, Scientist-in-Charge, USGS
firstname.lastname@example.org (907) 786-7497
David Fee, Coordinating Scientist, UAFGI
email@example.com (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.