Introduction of the Earthquake Early Warning System in Taiwan and Japan
Speaker : Cheng Fei-Wen
Abstract
Taiwan and Japan are located on the western circum-Pacific seismic belt which is one of the most active seismic regions. In the past, there were destructive earthquakes occurred in Taiwan and Japan. Earthquake early warning system (EEW) can be a useful tool for providing the message when earthquakes occurred and reducing disaster.
Urgent Earthquake Detection and Alarm System (UrEDAS) can estimate the earthquake parameters in 3 seconds after records start and issue the warning. Afterward JMA developed a new EEW system, B-Δ Algorithm, the warning messages can be issued to the general public in few seconds. The EEW system was developing for a long time in Japan and Japan Meteorological Agency (JMA) started to provide EEW messages to the general public on the 1 October 2007.
From the successful case of EEW in Japan, Taiwan is now developing EEW system as well. In this presentation, the developing of EEW system in Japan and Taiwan will be introduced first, and how to issue the warning messages to the general public in Japan will also be discussed.
References
Wen, K.-L., Shin, T.-C., Wu, Y.-M., 2009. Earthquake Early Warning Technology Progress in Taiwan. Journal of Disaster Research , Vol.4 No.4
Kamigaichi, O, Saito, M, Doi, K, Matsumori, T, Tsukada, S, Takeda, K, Shimoyama, T, Nakamura, K, Kiyomoto, M, Watanabe, Y, 2009. Earthquake Early Warning in Japan: Warning the General Public and Future Prospects. Seismological Research Letters , Vol.80 No.5