Global Volcanism Program | Image GVP-01410

The flanks of a group of post-caldera lava domes are to the left above Lake Ashi in SW Hakone caldera. Lake Ashi formed when an avalanche from Kamiyama, the highest of the central lava domes, blocked river valleys that drain to the E through a breach in the caldera wall. Photo by Lee Siebert, 1977 (Smithsonian Institution).

The flanks of a group of post-caldera lava domes are to the left above Lake Ashi in SW Hakone caldera. Lake Ashi formed when an avalanche from Kamiyama, the highest of the central lava domes, blocked river valleys that drain to the E through a breach in the caldera wall.

Photo by Lee Siebert, 1977 (Smithsonian Institution).

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Keywords: caldera | lava dome

Hakoneyama