Slip distribution of the 2003 northern Miyagi earthquake (M6.4) deduced from geodetic inversion

Satoshi Miura, Yoko Suwa, Toshiya Sato, Kenji Tachibana, Akira Hasegawa

研究成果: Article査読

15 被引用数 (Scopus)

抄録

On July 26, 2003, a disastrous earthquake with M6.4 struck the northern part of Miyagi prefecture, northern Honshu, Japan. GPS measurements and leveling surveys conducted by the Geographical Survey Institute (GSI) revealed clear evidence of coseismic deformation. We analyzed those data using a geodetic inversion to estimate the slip distribution on a curved fault plane, which is suggested by precise hypocenter determination performed by Tohoku University. The maximum slip area is located at the northern and shallower part of the fault plane, which is consistent with the slip distribution obtained by seismic waveform inversion. The spatial pattern of slip direction also shows good agreement with that of the focal mechanism.

本文言語English
ページ(範囲)95-101
ページ数7
ジャーナルearth, planets and space
56
2
DOI
出版ステータスPublished - 2004

ASJC Scopus subject areas

  • 地質学
  • 宇宙惑星科学

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