Global Volcanism Program | Image GVP-02342
The 3 x 5 km lake-filled Akademia Nauk caldera formed during the late Pleistocene within an earlier caldera. The caldera was active during the Holocene, low-temperature geothermal activity took place along the shores of the caldera lake, and an eruption took place in 1996.
Photo by Dan Miller, 1990 (U.S. Geological Survey).
This image is made available as a Public Domain Work, but proper attribution is appreciated.