Global Volcanism Program | Image GVP-02362
The eastern margin of Karymsky caldera, which was created about 7,500 years ago, forms the steep wall across the center of the photo. Fresh, dark-colored lava flows from Karymsky cover the caldera floor. The snow-covered volcano to the NE is Maly Semyachik, which has also produced frequent historical eruptions.
Photo by Dan Miller (U.S. Geological Survey).