This study mainly focusses on the dynamic change due to the earthquakes and typhoons in Taiwan. Taiwan is a hazard prone area because of earthquakes and typhoons. It is interesting to know the landscape change in 20 years due to the earthquakes and typhoon.
The Chi-Chi earthquake happened at magnitude of 7.3 on the Richter scale in 1999 and caused more than 22000 landslides. The Chelungpu thrust fault was uplifted up to 9 m. The fault line also crossed the Tachia river channel and a nick point was formed. Two big landslide dams were formed due to earthquake. From above earthquake features, it is interesting how does the landforms change and in what way?
Three typical cases are demonstrated in this study: evolution of nick point of river, evolution of landslide dams and development of landslide sites. It is found that vegetation cover changed when there is a new landslide occurred. However, it is difficult to identify the location of landslides because of growth of vegetation within 5 years.
This is a case of resilience to the earthquake hazards. Taiwan demonstrate such pressure and reaction.
Mots clés : earthquake|Taiwan|evolution|hazard
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