The 1999 Chi-Chi, Taiwan, earthquake (Mw 7.6) struck central western Taiwan at 1:47 a.m. local time (on 21 September or at UTC 17:47 20 September). The causal fault was immediately identified to be the mapped active Chelungpu thrust fault as it produced a remarkable 100-km-long surface break, with fault scarps as high as 8 m in places. The nucleation point of this long rupture was defined by an epicenter at 120.82 °E and 23.85 °N, with a focal depth of 8 km. A first-motion solution was reported to be striking N20 °E, dipping 30 °SE with an average...

First Page Preview

First page PDF preview
You do not currently have access to this article.