Catastrophic Deep-Seated Landslide at Xiaolin Village in Taiwan Induced by 2009.8.9 Typhoon Morakot
Xiaolin village is located in Kaohsiung County, Taiwan. During typhoon Morakot, a deep-seated, dip-slope landslide with an area of 2.5 km2 and a volume of 2.7 × 107 m3 occurred and killed more than 400 people. It began at 6:17 a.m. on August 9, 2009 due to heavy rainfall. The mean depth of Xiaolin landslide was 44.6 m. The main sediment slid through an original valley, dammed the Chishan River, and buried a part of the Xiaolin village. Dam-breaking occurred shortly after and buried remaining part of the village. It was the most devastating disaster occurred since the typhoon warning system was established in Taiwan in 1992. This paper gives a detailed report on the event and analyzes the disaster through comparison of the geographical change. The detailed description in this paper can provide important criterion for predicting and emergency response to similar large scale landslide disaster in the future.
KeywordsTyphoon Morakot Deep-seated landslide Xiaolin landslide Dam break
The authors would like to thank Professor C.T. Lee and Dr. W.N. Wang for providing us useful geologic information and constructive comments. Special thanks for National Science and Technology Center for Disaster Reduction, Taiwan for providing part of the data in this paper.
- Keng WP (1965) Geology of the Minsheng-Chiahsien area, Southern Taiwan. Bulletin Geol Surv Taiwan 16:3–15Google Scholar
- Lee CT, Dong JJ, Lin ML (2009) Geological investigation on the catastrophic landslides in Siaolin village, southwestern Taiwan. Sino-Geotechnics 122:87–94Google Scholar
- Lin CH, Lin HK, Ando M, Shin TC (2010) Detection of landslides and submarine slumps using broadband seismic networks. Geophys Res Lett 37:L22309. doi: 10.1029/2010GL044685