Global Volcanism Program | Image GVP-02343
Akademia Nauk caldera in central Kamchatka, seen here from the slopes of Karymsky volcano looking SW, is one of two overlapping calderas formed during the late Pleistocene within the 15-km-wide Polovinka caldera. The snow-capped ridge to the upper left is the southern rim of Odnoboky caldera, and the northern rim is truncated by the Akademia Nauk. Karymsky Lake fills the 3 x 5 km Akademia Nauk caldera that most recently erupted in 1996.
Photo by Dan Miller, 1990 (U.S. Geological Survey).