Imaging magma transport during the 1997 seismic swarm off the Izu Peninsula, Japan

Science

Volumn 286, Issue 5441, 1999, Pages 927-930

  Aoki, Yosuke ^a,b   Segall, Paul ^a   Kato, Teruyuki ^b   Cervelli, Peter ^a   Shimada, Seiichi ^c  

^a STANFORD UNIVERSITY   (United States)

^b UNIVERSITY OF TOKYO   (Japan)

^c NATIONAL RESEARCH INSTITUTE FOR EARTH SCIENCE AND DISASTER PREVENTION   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

GPS; MAGMA; SEISMICITY; VOLCANISM;

ARTICLE; EARTHQUAKE; GEOGRAPHIC DISTRIBUTION; GEOLOGY; NATURAL SCIENCE; PRIORITY JOURNAL; VOLCANO;

JAPAN;

EID: 0033615618     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.286.5441.927     Document Type: Article

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14. With a dip of 70° and the bottom edge of the dike fixed at the simulated annealing result, the modeled dike agrees with the earthquake distribution. The time-dependent inversion results were not changed significantly if we assumed a vertical dike offset 1.4 km to the NE of the simulated annealing result The best-fitting dike from simulated annealing is almost immediately below station KWN0. Because there is no tilt predicted above a vertical dike, this geometry requires large shallow opening in order to fit the tilt data.
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25. We thank the Geographical Survey Institute of Japan and the National Research Institute for Earth Science and Disaster Prevention of Japan for access to data and P. Delaney, Y. Okada, B. Ellsworth, G. Beroza, T. Dixon, and an anonymous reviewer for helpful comments. Supported by a grant from NASA's Solid Earth and Natural Hazards program to Stanford University.