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Volcanoes and Caldera Lakes of Japan’s Hokkaido Island – January 6th, 2010

37.1N 140.3E

January 6th, 2010 Category: Image of the day, Lakes, Volcanoes

Japan - December 20th, 2009

Japan - December 20th, 2009

Several volcanoes and caldera lakes can be observed in this orthorectified image of Japan’s Hokkaido island. The largest two lakes are Lake Kussharo (center) and Lake Mashu (right of the former). Prominent volcanoes include Mount Shari, northeast of the lakes, and Mount Mokoto, on the shores of Lake Kussharo.

Mount Shari is a quaternary stratovolcano, located on the Shiretoko Peninsula, with a summit of 1545 m. Nearby peaks include Mount Shibetsu, to the south, and Mount Unabetsu, to the northeast.

Lake Kussharo is a caldera lake in Akan National Park, eastern Hokkaidō. It is the largest caldera lake in Japan in terms of surface area, and sixth largest lake in Japan. It is also the largest lake in Japan to freeze over completely in winter. The lake’s central island, Nakajima, is a composite volcano.

Lake Mashū is a landlocked endorheic crater lake formed in the caldera of a dormant volcano. It is also located in Akan National Park. It has been called the clearest lake in the world.

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