Japan Geoscience Union Meeting 2015

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Symbol S (Solid Earth Sciences) » S-SS Seismology

[S-SS32] Seismicity

Tue. May 26, 2015 2:15 PM - 4:00 PM A04 (APA HOTEL&RESORT TOKYO BAY MAKUHARI)

Convener:*Yoshinari Hayashi(Faculty of safety Science, Kansai University), Chair:Masaru Nakano(Japan Agency for Marine-Earth Science and Technology), Keita Chiba(National research institute for )

2:30 PM - 2:45 PM

[SSS32-02] Triggering process of the M6.4 Eastern Shizuoka earthquake on March 15, 2011

*Rina TAMURA1, Masatoshi MIYAZAWA2 (1.Graduate School of Science, Kyoto University, 2.Disaster Prevention Research Institute, Kyoto University)

Keywords:2011 Eastern Shizuoka earthquake, 2011 Tohoku-oki earthquake, static stress changes, dynamic stress changes, triggering

We investigated the triggering process of the MJMA6.4 Eastern Shizuoka earthquake which occurred near Mt. Fuji at a depth of about 14 km, four days after the Mw9.0 2011 Tohoku-oki earthquake. The Eastern Shizuoka earthquake may have been triggered by the static stress changes from the 2011 Tohoku-oki earthquake and/or the dynamic stress and strain changes due to the passage of surface waves from the MJMA6.2 Fukushima-oki earthquake which occurred about 230 sec earlier and at a site located about 400km away.