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Pavlof Sister volcano

Stratovolcano 2142 m / 7,027 ft
United States, Alaska Peninsula, 55.45°N / -161.84°W
Current status: normal or dormant (1 out of 5) | Reports
Pavlof Sister volcano books
Typical eruption style: unspecified
Pavlof Sister volcano eruptions: unknown, no recent eruptions
TimeMag. / DepthDistanceLocation
Fri, 27 Sep 2019
Fri, 27 Sep 01:07 UTCM 0.3 / 2.1 km10 km65km NE of Cold Bay, Alaska (USA)
Thu, 26 Sep 2019
Thu, 26 Sep 13:44 UTCM 0.6 / 31.5 km9 km72km ENE of Cold Bay, Alaska (USA)

Background:

Located at the end of a chain of volcanoes trending NE from Emmons Lake caldera, the symmetrical Pavlof Sister stratovolcano is somewhat more eroded than its twin volcano to the SW, Pavlof. Pavlof Sister, along with Pavlof and Little Pavlof is a stratovolcano that formed outside of the Emmons Lake caldera; these and other volcanoes inside Emmons Lake caldera are not glaciated and thus would have formed since the area was last glaciated about 15-20,000 years ago. The 2142-m-high Pavlof Sister is almost 400 m lower than Pavlof and has a sharper-peaked summit. Some sources attributed a period of intermittent eruptive activity from 1762 to 1786 AD to Pavlof Sister, but other sources consider this event to have been from Pavlof volcano. The two symmetrical volcanoes form a dramatic backdrop to Pavlof Bay and Volcano Bay near the western end of the Alaska Peninsula.
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Smithsonian / GVP volcano information


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