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The following article is Open access

Piston to funnel – successive growth of a collapsed caldera during the Miyakejima 2000 eruption

Published under licence by IOP Publishing Ltd
, , Citation Nobuo Geshi 2008 IOP Conf. Ser.: Earth Environ. Sci. 3 012022 DOI 10.1088/1755-1307/3/1/012022

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1 (Geological Survey of Japan, AIST, 1-1-1 Higashi, Tsukuba Ibaraki 305-8567 Japan

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1755-1315/3/1/012022

Abstract

We present an analysis of caldera evolution at Miyakejima in 2000. The caldera changed its structure from piston to funnel subsidence during its growth. The successive subsidence of the central block induced landslides at the caldera wall, which successively enlarged the diameter of the caldera.

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10.1088/1755-1307/3/1/012022