委託研究計畫期 期末 末成果報告
臺灣地區 103 年中大型與火山地震震源 資訊之快速彙整與提供-
地震震源滑移量分佈之即時逆推(1/3)
計畫類別：□氣象 □海象 ■地震 計畫編號：MOTC-CWB-103-E-06
執行期間：103 年 1 月 1 日至 103 年 12 月 31 日 計畫主持人：趙里
執行機構：中華民國地球物理學會
中華民國一百零三年十一月九日
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委託研究計畫期 期末 末成果報告
臺灣地區 103 年中大型與火山地震震源 資訊之快速彙整與提供-
地震震源滑移量分佈之即時逆推(1/3)
計畫類別：□氣象 □海象 ■地震 計畫編號：MOTC-CWB-103-E-06
執行期間：103 年 1 月 1 日至 103 年 12 月 31 日 計畫主持人：趙里
執行機構：中華民國地球物理學會
中華民國一百零三年十一月九日
2 計畫中文名稱
-地震震源滑移量分佈之即時逆推(1/3) 計畫編號 MOTC-CWB-103-E-06
主管機關 交通部中央氣象局
Source slip distribution, strong ground motion, wavelet transformation. 計畫編號 MOTC-CWB-103-E-06
主管機關 交通部中央氣象局
Source slip distribution, strong ground motion, wavelet transformation.
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4 collision between Eurasian and Philippine Sea plates in the east coastal region and the two subduction zones off the east and south coasts lead to frequent earthquakes, some of them causing significant damages to the society. Therefore earthquake hazard mitigation has always been an important task for the earth science community. After the occurrence of large earthquakes, rapid report of earthquake information, including the earthquake location, magnitude, focal mechanism, the fault-plane orientation, and the spatial-temporal slip distribution, etc., is crucial not only for the seismotectonic studies but also for disaster relief and for the demands of the society and news organizations for information dissemination. In the past few years, with the support of the Central Weather Bureau, we have established an automatic system for near real-time determinations of focal mechanism solutions of point sources, the identification of actual rupture planes and average finite rupture models. In the current project we will develop the capability of real-time automatic inversions of source slip distributions for moderate and large earthquakes in three-dimensional structural model. These more accurate and detailed earthquake information will be helpful for quick assessment of hazard distribution and seismic potential, and for disaster relief deployment immediately after damaging earthquakes.
4 collision between Eurasian and Philippine Sea plates in the east coastal region and the two subduction zones off the east and south coasts lead to frequent earthquakes, some of them causing significant damages to the society. Therefore earthquake hazard mitigation has always been an important task for the earth science community. After the occurrence of large earthquakes, rapid report of earthquake information, including the earthquake location, magnitude, focal mechanism, the fault-plane orientation, and the spatial-temporal slip distribution, etc., is crucial not only for the seismotectonic studies but also for disaster relief and for the demands of the society and news organizations for information dissemination. In the past few years, with the support of the Central Weather Bureau, we have established an automatic system for near real-time determinations of focal mechanism solutions of point sources, the identification of actual rupture planes and average finite rupture models. In the current project we will develop the capability of real-time automatic inversions of source slip distributions for moderate and large earthquakes in three-dimensional structural model. These more accurate and detailed earthquake information will be helpful for quick assessment of hazard distribution and seismic potential, and for disaster relief deployment immediately after damaging earthquakes.
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地震學研究以及震後的應急與地震危險性分析中，震源機制與震源過程的描述是 一項重要的資訊，它們可以幫助我們了解地震發生的過程、應力場的特徵與變化，
以及可能引起地震的構造環境。在過去幾年裡，在氣象局的支助下我們已經建立 了一個基於Zhu & Helmberger (1996)和 Zhu & Ben-Zion (2013)的 gCAP 方法,用地 震波波形來自動、迅速確定震源機制解的系統，使得在臺灣本島及近海有感地震
Hartzell & Heaton, 1983; Graves & Wald, 2001; Ji et al., 2002a,b)，本研究之目的是將 該逆推方法推廣到三維模型中，在保證逆推結果的精確可靠性的前提下，提高計 Kikuchi & Kanamori, 1982; Hartzell & Heaton, 1983; Graves & Wald, 2001)，在有大 地震（通常在規模7.5 或更大）發生時，都會有一些震源破裂過程的逆推結果在互 了一個基於Zhu & Helmberger (1996)和 Zhu & Ben-Zion (2013)的 gCAP 方法,用地 震波波形來自動、迅速確定震源機制解的系統，使得在臺灣本島及近海有感地震
Hartzell & Heaton, 1983; Graves & Wald, 2001; Ji et al., 2002a,b)，本研究之目的是將 該逆推方法推廣到三維模型中，在保證逆推結果的精確可靠性的前提下，提高計 Kikuchi & Kanamori, 1982; Hartzell & Heaton, 1983; Graves & Wald, 2001)，在有大 地震（通常在規模7.5 或更大）發生時，都會有一些震源破裂過程的逆推結果在互