Japan Geoscience Union Meeting 2014

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Symbol H (Human Geosciences) » H-DS Disaster geosciences

[H-DS28_1PM2] Earthquake, Tsunami and Volcanic Eruption Hazards and Risks in Asia-Pacific Region

Thu. May 1, 2014 4:15 PM - 5:45 PM 312 (3F)

Convener:*Shinji Takarada(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Naoji Koizumi(National Institute of Advanced Industrial Science and Technology, Active Fault and Earthquake Research Center, Geological Survey of Japan), Yasuto Kuwahara(National Institute of Advanced Industrial Science and Technology), Yuzo Ishikawa(The National Institute of Advanced Industrial Science and Technology), Akira Takada(National Institute of Advanced Industrial Science and Technology Geological Survey of Japan), Ryuta FURUKAWA(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Norio Shigematsu(Active Fault and Earthquake Research Center, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Tadashi Maruyama(Ministry of Education, Culture, Sports, Science and Technology), Chair:Shinji Takarada(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Yuzo Ishikawa(The National Institute of Advanced Industrial Science and Technology)

4:30 PM - 4:45 PM

[HDS28-02] Compiling the source area data of large earthquakes occurred in Pacific Rim

*Yuzo ISHIKAWA1 (1.Y. Ishikawa)

Keywords:source area, large earthquake, Pacific Rim

The locations of hypocenters were usually plotted by some symbols. This way leads to misunderstand that the earthquake source is the point source. It was caused by the earthquake catalog of which location data were given as a point.Now, the earthquake source are given by the area obtained by the one month aftershock distributions. Events of which magnitude are larger than 8.0 from 1970, using PDE earthquake catalog. Some large events were added in 20 century. The source areas of large earthquakes occurred in Pacific Rim were digitized.