Volcano Photos

Pavlof Volcano, USA

 Pavlof Volcano, USA, Volcano photo

Pavlof Volcano, USA

Pavlof volcano, rising above low plains to its NW, is one of Alaska's most active volcanoes.

It is part of a NNE-SSW-trending line of volcanoes near the tip of the Alaskan Peninsula.

The knob on the middle right horizon is Little Pavlof, a subsidiary peak of Pavlof.

The low saddle at the left separates Pavlof from Pavlof Sister, whose lower flanks are seen at the extreme left.

The most active volcano of the Aleutian arc, Pavlof is a 2519-m-high Holocene stratovolcano that was constructed along a line of vents extending NE from the Emmons Lake caldera.

Pavlof and its twin volcano to the NE, 2142-m-high Pavlof Sister, form a dramatic pair of symmetrical, glacier-covered stratovolcanoes that tower above Pavlof and Volcano bays.

A third cone, Little Pavlof, is a smaller volcano on the SW flank of Pavlof volcano, near the rim of Emmons Lake caldera.

Unlike Pavlof Sister, Pavlof has been frequently active in historical time, typically producing strombolian to vulcanian explosive eruptions from the summit vents and occasional lava flows.

The active vents lie near the summit on the north and east sides.

The largest historical eruption of Pavlof took place in 1911, at the end of a 5-year-long eruptive episode.

During this eruption a fissure opened on the northern flank of the volcano, ejecting large blocks and issuing lava flows.

PHOTO SOURCE: Steve McNutt, 1979 (University of Alaska, Alaska Volcano Observatory), courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.

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