Japan Geoscience Union Meeting 2014

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Oral

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

[M-IS29_29PM1] Electromagnetic phenomena associated with seismic and volcanic activities

Tue. Apr 29, 2014 2:15 PM - 4:00 PM 313 (3F)

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

3:45 PM - 4:00 PM

★ [MIS29-07] Review of seismo-electromagnetics and earthquake predictology

*Masashi HAYAKAWA1 (1.University of Electro-Communications)

Keywords:Earthquake precursors, Earthquake predictology

This paper consists of a few parts. The 1st part deals with the review of electromagnetic precursors to the 2011 Japan earthquake (EQ). The 2nd part is based on the general review of seismo-electromagnetics, and the 3rd, the proposal of a new science field of EQ predictology. In the 1st paper we present our own results on electromagnetic precursors to the 2011 EQ, including (1) subionospheric VLF/LF propagation anomaly, (2) ULF (ultra-low-frequency) magnetic field depression, and (3) atmospheric VLF/ELF radiation. The 2nd part deals with the present situation of seismo-electromagnetics (DC geoelectric measurement, ULF emissions, atmospheric effect and ionospheric effects), in which the ionospheric precursor has already been found to be statistically correlated with EQs based on long-term data. Finally, by using such EQ precursors we are ready to perform the short-term EQ prediction and to propose a new science field of EQ predictology.