Japan Geoscience Union Meeting 2016

Presentation information

International Session (Poster)

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

[M-IS03] Interdisciplinary studies on pre-earthquake processes

Wed. May 25, 2016 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall HALL6)

Convener:*Katsumi Hattori(Department of Earth Sciences, Graduate School of Science, Chiba University), Dimitar Ouzounov(Center of Excellence in Earth Systems Modeling & Observations (CEESMO) , Schmid College of Science & Technology Chapman University, Orange, California, USA), Jann-Yenq Liu(Institute of Space Science, National Central University, Taiwan), Qinghua Huang(Peking University)

5:15 PM - 6:30 PM

[MIS03-P06] A statistical investigation of z test on seismo-ionospheric anomalies in TEC associated earthquakes in Japan during 1999-2014

*AiLing Shih1, Jann-Yenq Liu1 (1.National Central University)

Keywords: earthquake, ionosphere

Statistical analysis on seismo-ionospheric precursors (SIP) by using global ionosphere map (GIM) of the total electron content (TEC) in associated with 188 M≥6.0 earthquakes in Japan during 1999-2014. Various references days of -15, ±7, ±15, ±30 days to the earthquake are employed to find characteristics of SIP. Results show that both decrease (or negative) and increase (or positive) anomalies in the GIM TEC before the earthquakes are further examined by z test. The receiver operating characteristic curve is also applied to see whether the SIPs exist in Japan.