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Global Volcanism Program | Image GVP-08814

The tuff cone and crater in the foreground were formed during an eruption on the caldera floor in 1871. Phreatic explosions ejected ash and lapilli that covered the caldera floor. Five explosion craters are located in the 800 x 1,400 m caldera floor. Post-caldera lava domes form the horizon. Photo by Ichio Moriya (Kanazawa University).

The tuff cone and crater in the foreground were formed during an eruption on the caldera floor in 1871. Phreatic explosions ejected ash and lapilli that covered the caldera floor. Five explosion craters are located in the 800 x 1,400 m caldera floor. Post-caldera lava domes form the horizon.

Photo by Ichio Moriya (Kanazawa University).

Keywords: crater | caldera | tuff cone


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