Troitsky crater, the youngest of six craters at the summit of Kamchatka's Maly Semyachik volcano, was formed during a major explosive eruption about 400 years ago. The crater, seen here from the W with the Pacific Ocean in the background, is at the summit of Ceno-Semyachik. This is the youngest of the four overlapping stratovolcanoes that comprise the Maly Semyachik massif. The crater is now filled by a hot, acidic lake and has been the source of historical eruptions.

Photo by Dan Miller, 1990 (U.S. Geological Survey).

This image is made available as a Public Domain Work, but proper attribution is appreciated.

Galleries: Stratovolcanoes

Keywords: crater | crater lake | stratovolcano

Maly Semyachik