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Maly Semiachik

Maly Semiachik

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


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