Abstract
Ludian Earthquake (Ms6.5, Mw6.1) on August 3, 2014 has induced many new slope failures, and resulted in more than 600 deaths and significant property losses. The seismogenic fault is a left-lateral strike-slip hidden fault, an extension of NW–SE Baogunao-Xiaohe Fault. 235 landslides induced by the earthquake have been interpreted by field investigation and remote sensing. The high-susceptibility ranges of different effective factors to the landslides are examined by the index of the ratio of occurrence probabilities. Unlike other earthquake events such as the Wenchuan earthquake in 2008, most of the landslides are located in the footwall, and their spatial arrangement is controlled by the NE oriented main fault of Zhaotong-Ludian, not by the NW seismogenic fault. Four large-scale landslides very closed to the seismogenic fault are described in details. The sliding direction of the four landslides is influenced strongly by the fault properties and the aspect of free face, and there are two principal directions for the large landslides.
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Acknowledgements
This research was supported the National Natural Science Foundation of China (Grant No. 41371039 and 41372301), the External Cooperation Program of BIC, Chinese Academy of Sciences (Grant No. 131551KYSB20130003), and the Open Foundation of Key Laboratory of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences.
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Hu, Kh., Chen, Xz., Ge, Yg., Jiang, Xy., Wang, Yc. (2017). Landslides Triggered by the Ms6.5 Ludian, China Earthquake of August 3, 2014. In: Mikoš, M., Casagli, N., Yin, Y., Sassa, K. (eds) Advancing Culture of Living with Landslides. WLF 2017. Springer, Cham. https://doi.org/10.1007/978-3-319-53485-5_13
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DOI: https://doi.org/10.1007/978-3-319-53485-5_13
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