[S-SS31_30PM2] Comprehensive approach to the intraplate earthquakes

Wed. Apr 30, 2014 4:15 PM - 6:00 PM 502 (5F)

Convener:*Norio Shigematsu(Active Fault and Earthquake Research Center, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Aitaro Kato(Earthquake Research Institute, University of Tokyo), Takuya NISHIMURA(Disaster Prevention Research Institute, Kyoto University), Chair:Satoshi Matsumoto(Institute of Seismology and Volcanology, Faculty of Sciences, Kyushu University), Tetsuhiro Togo(Institute of Geology, China Earthquake Administration)

It is necessary to clarify the generating process of large shallow intraplate earthquakes, in order to develop the method that forecasts the occurrence of large intraplate earthquakes based on their physics. In this session, we will investigate the generating process of large intraplate earthquakes by integrating multidiscipline approach of geophysics and geology. In addition, the 2011 Tohoku-Oki earthquake triggered widespread seismicity in NE Japan, due to the large extensional stress perturbations. We welcome papers on researches of the induced seismicity and the crustal response to mega-thrust events.

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4:15 PM - 4:30 PM

[SSS31-07] HV frictional strength of wet Longmenshan fault gouge and its comparison with the temperature anomaly in WFSD drill hole

*Tetsuhiro TOGO¹, Toshihiko SHIMAMOTO¹, Shengli MA¹, Lu YAO¹ (1.Institute of Geology, China Earthquake Adiministration)

4:30 PM - 4:45 PM

[SSS31-08] Numerical simulation of shear bands formation in ground due to strike-slip fault

*Toshihiro NODA¹, Shotaro YAMADA¹, Akira ASAOKA², Yoshihiro SAWADA², Yuta KAWAI¹ (1.Nagoya University, 2.Association for the Development of Earthquake Prediction)

4:45 PM - 5:00 PM

[SSS31-09] Spatially inhomogeneous stress field in the source area of the 2011 Fukushima Hamadori earthquake sequence

*Keisuke YOSHIDA¹, Akira HASEGAWA¹, Tomomi OKADA¹ (1.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Tohoku University)

5:00 PM - 5:15 PM

[SSS31-10] To what degree can rocks become weak during deformation?: Fracturing-dissolution-mass transfer-precipitation creep

*Toru TAKESHITA¹, Ayumi OKAMOTO¹ (1.Hokkaido University)

5:15 PM - 5:30 PM

[SSS31-11] Detecting the stress condition at a fault from focal mechanism: application to the 2013 Awaji Island earthquake (M6.3)

*Satoshi MATSUMOTO¹, Hiroshi KATAO², Yoshihisa IIO² (1.Institute of Seismology and Volcanology, Kyushu Univ., 2.Disaster Prevention Research Institute, Kyoto Univ.)

5:30 PM - 5:45 PM

[SSS31-12] A friction to flow constitutive law and its application to a two-dimensional modeling of earthquake cycles

*Toshihiko SHIMAMOTO¹, Hiroyuki NODA² (1.Institute of Geology, China Earthquake Administration, 2.JAMSTEC)

5:45 PM - 6:00 PM

[SSS31-13] A consideration about computation of tectonic stress field for inland thrust earthquake

*Takashi MIYATAKE¹ (1.ERI, The Univ. of Tokyo)