日本地球惑星科学連合2019年大会

講演情報

[E] ポスター発表

セッション記号 M (領域外・複数領域) » M-IS ジョイント

[M-IS04] Interdisciplinary studies on pre-earthquake processes

2019年5月30日(木) 17:15 〜 18:30 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:服部 克巳(千葉大学大学院理学研究科)、劉 正彦(国立中央大学太空科学研究所)、Ouzounov Dimitar(Center of Excellence in Earth Systems Modeling & Observations (CEESMO) , Schmid College of Science & Technology Chapman University, Orange, California, USA)、Qinghua Huang(Peking University)

[MIS04-P06] Multi-sensor monitoring network for earthquake precursor study near subduction zone at Boso, Japan

*服部 克巳1吉野 千恵1謝 蔚云2齊藤 央2小島 春奈2宋 鋭2韓 鵬3茂木 透4後藤 忠徳5内匠 逸6安川 博7毛利 元昭8井筒 潤9高野 忠10山中 千博11鴨川 仁12安藤 芳晃13劉 正彦14Ouzounov Dimitar15Tramutoli Valery16 (1.千葉大学大学院理学研究院、2.千葉大学大学院融合理工学府、3.中国南方科技大学、4.北海道大学、5.京都大学、6.名古屋工業大学、7.愛知県立大学、8.愛知大学、9.中部大学、10.日本大学、11.大阪大学、12.東京学芸大学、13.電気通信大学、14.台湾国立中央大学、15.Chapman University, US、16.University of Basilicagta, Italy)

New observations from ground and space have provided multiple evidences of pre-earthquake signals and the latest studies show their statistical significance, repeatability, and universality. In this project, to understand the preparation process of large earthquakes and slow-slip events in subduction zone, especially to clarify the nucleation stage of the earthquake cycle, we plan to establish a dense observation network in Boso, Japan, where large subduction earthquakes are expected soon. Since the subsurface fluid flow may play an important role in the preparation process of subduction activities, we intend to employ electromagnetic approaches including oceanic and continental MT survey to monitor the underground resistivity structure which is sensitive to the dynamics of fluid. Other geophysical monitoring such as ULF geomagnetic and geoelectrical observations, radon measurements, and inland GPS movements, TIR, and OLR will be incorporated to help to understand the preparation process and evaluate the applicability of various pre-earthquake signals towards short term earthquake forecasting. We call this idea “sensor WEB”. We will show the state of the art and some results in our presentation.
This study is supported by Grand-in-Aids for Scientific Research of Japan Society for Promotion of Science (26249060).