Details of the Abstract
| Title of paper | Electromagnetic anomalies associated with the 2024 Hualien Earthquake in Taiwan |
| List of authors | Hase, H., Lee, J.C., Chen, C.C., Huang, H.H., Lin, C.H., Song, S.R., Lu, Y.C., Yeh, E.C., Ho, G.R., Mu, C.H., Chan, Y.C., Kuo, L.W., Chen, Y.G., and Chung, S.L. |
| Affiliation(s) |
Geothermal and Energy Research & Development (GERD) Co., LTD., Tokyo, Japan Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan Department of Earth Sciences National Central University, Chungli, Taiwan Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan Department of Geosciences, National Taiwan University, Taipei, Taiwan Department of Earth Sciences National Central University, Chungli, Taiwan National Taiwan Normal University, Taipei, Taiwan Centre of Environmental Change Research, Academia Sinica, Taipei, Taiwan Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan Department of Earth Sciences National Central University, Chungli, Taiwan Department of Geosciences, National Taiwan University, Taipei, Taiwan Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan |
| Summary |
On April 3, 2024, a magnitude w7.4 earthquake struck Hualien area, located in the middle east region of Taiwan. This was the first major earthquake exceeding magnitude 7 in Taiwan in 25 years, since the Chi-Chi earthquake in 1999, which killed at least 18 people and injured more than 1,100 people. The intensity of the earthquake was 6+ in Hualien City and 5- in Taipei City in the northern part of the island (CWA Earthquake Report). A group led by Academia Sinica in Taiwan began MT surveys in February 2024 to investigate geothermal resources in an area measuring 15 km east-west by 10 km north-south, centered on the Tatun volcanic area, and had conducted 94 MT surveys by the end of June. MT surveys were also being conducted on April 3, when the earthquake occurred, and 10 MT equipment units were being used to make measurements at the time of the earthquake. The seismic intensity of the earthquake was estimated to be 3 to 4 in the area where the MT survey was conducted (CWA Earthquake Report). In this presentation, we will report on the status of the observed electromagnetic fluctuations and discuss the mechanism of their occurrence. |
| Session Keyword | 5.0 Monitoring: of GICs, environmental, tectonic and geomorphological hazards |
| File upload |
5.0_electromagnetic_anomalies_hideaki.pdf
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