The 1999 Chi‐Chi earthquake (Mw 7.6) was due to slip along the Chelungpu fault: a major N striking thrust fault in the fold‐thrust belt of western Taiwan. The surface rupture extends over 100 km in a N‐S trend with NW trending horizontal displacement increasing from 2 to 10 m from south to north. The slip azimuths progressively rotate from north/northwest in the north to west southwest in the south.

During the Chi-Chi earthquake most of the damage concentrates on nearly surface rupture. In this talk we will review the detail surface deformation especially near the surface rupture to discuss the surface deformation and how it is related with building damages. We also will discuss the mechanism of controlling the length of the Chelungpu fault and we conclude the magnitude of the Chelungpu fault is largest western Taiwan.

「從車籠埔斷層看過去現在與未來的地震」國際學術研討會
主辦單位：國立自然科學博物館
指導單位：教育部、科技部
合辦單位：經濟部中央地質調查所
協辦單位：中華民國地球物理學會、中華民國地質學會、臺灣師範大學科學教育中心
影片錄製與提供：國家高速網路與計算中心「知識大講堂」團隊