Japan Geoscience Union Meeting 2014

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Poster

Symbol M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS29_29PO1] Electromagnetic phenomena associated with seismic and volcanic activities

Tue. Apr 29, 2014 6:15 PM - 7:30 PM Poster (3F)

Convener:*Kodama Tetsuya(Earth Observation Research Center, Space Applications Mission Directorate, Japan Space Exploration Agency), Jun Izutsu(College of Engineering, Chubu University), Yasuhide Hobara Yasuhide(Graduate School of Information and Engineering Department of Communication Engineering and Informatics, The University of Electro-Communications), Toshiyasu Nagao(Earthquake Prediction Research Center, Tokai University)

6:15 PM - 7:30 PM

[MIS29-P04] Ionospheric Anomaly as an Earthquake Precursor : Statistical Study during 1998-2012 around Japan

*Mayuka KUNIMITSU1, Katsumi HATTORI2, Peng HAN2, Jann-yenq LIU3 (1.Graduate School of Science, Chiba University, 2.Institute of Space Science, National Central University, Taiwan, 3.Faculty of science, Chiba University)

Many anomalous electromagnetic phenomena possibly associated with large earthquakes have been reported. TEC (Total Electron Contents) anomaly is one of the most promising phenomena preceding large earthquakes. We investigated statistically TEC anomalies before large earthquakes around Japan region during 1998-2012. In this study, superposed epoch analysis (SEA) and Molchan's error diagram (MED) analysis have been taken to investigate correlation and predictability in the statistical manner. The results of SEA show that positive anomaly 1-5 days before the large earthquake (M>=6.0 and depth