日本地球惑星科学連合2025年大会

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[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-IS09] Interdisciplinary studies on pre-earthquake processes

2025年5月25日(日) 17:15 〜 19:15 ポスター会場 (幕張メッセ国際展示場 7・8ホール)

コンビーナ:服部 克巳(千葉大学大学院理学研究院)、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)、Huang Qinghua(Peking University)

17:15 〜 19:15

[MIS09-P02] Responses of Seismo-ionospheric Precursors in the Total Electron Content to Earthquake Magnitude and Depth in Taiwan and Japan during 1999–2024

*Kuan-Yu LEE1、Jann-Yenq LIU1,2,3、JIA-WEI ZHUANG1 (1.Department of Space Science and Engineering, National Central University, Taiwan、2.Center for Astronautical Physics and Engineering, National Central University、3.Center for Space and Remote Sensing Research, National Central University)


The median base is employed to identify anomalies in the total electron content (TEC) on the Global Ionosphere Map (GIM) associated with earthquakes in Japan and Taiwan during 1999–2024. Z values of the one-sample test are used to find the characteristics of seismo-ionospheric precursors (SIPs) in the polarity of anomalous GIM TEC increases or decreases, lead days, durations, etc. for various earthquakes. The statistical significance of the SIP characteristics is further confirmed by the Receiver Operating Characteristic (ROC) curve analysis. Odds with SIPs versus earthquake magnitudes and depths are further computed to have a better understanding on the relationship between SIP occurrences and the preparation energy of earthquake preparation processes and underground structure.