Pavlof Volcano, active volcano, 8,177 ft (2,493 m) high, W Alaska Peninsula, SW Alaska, on the W shore of Pavlof Bay. It and its neighboring twin volcano, Pavlof Sister, 7,028 ft (2,142 m) high, are largely snow-covered, cone-shaped mountains. A stratovolcano, Pavlof Volcano is the most consistently active volcano in the Aleutian arc, having erupted frequently since the late 18th cent.; its largest historical eruption occurred in 1911. Pavlof Sister last erupted in 1762.
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