The 1999 Chi-Chi, Taiwan, earthquake as a typical example of seismic activation and quiescence
The 1999 Chi-Chi, Taiwan, earthquake as a typical example of seismic activation and quiescence
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DOI：
10.1029/2005gl023991
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发表时间：
2005-11-30
影响因子：
5.2
通讯作者：
Tiampo, KF
中科院分区：
文献类型：
--
作者：
Chen, CC;Rundle, JB;Tiampo, KF
模式信息学算法最近在南加州地震预报方面表现出了良好的性能，已被用来检测 1999 年台湾集集地震之前发生前兆地震活动的位置。利用本文提出的模式信息学方法，发现集集主震震中在主震发生前约 6 年的时间内表现出与台湾地区地震活动和静止相关的异常活动特征。因此，在对集集地震进行回顾性分析的基础上，提出了利用模式信息学进行地震中期危险性评估的策略。
The Pattern Informatics algorithm, which has recently shown promising performance for earthquake forecasting in Southern California, has been used to detect the locations where precursory seismic activity occurred preceding the 1999 Chi-Chi, Taiwan, earthquake. Using the Pattern Informatics method as presented in this paper, the epicenter of the Chi-Chi main shock was found to exhibit signatures of anomalous activity related to the seismic activation and quiescence in the Taiwan region over a time span of about 6 years before the main shock. A strategy of making intermediate-term earthquake hazard assessment by means of Pattern Informatics is therefore proposed on the basis of retrospective analysis of the Chi-Chi earthquake.