Abstract
During the “512” Wenchuan earthquake, Donghekou, which is located at the end of the seismogenic structure, experienced serious collapse and slide, resulting in serious disasters. In this paper, based on the analysis of near-fault strong ground motion records of Wenchuan earthquake, the collection of seismogenic structural data and near-fault structural damage data, the disaster mechanism of Donghekou landslide is studied. The earthquake damage of Donghekou was caused by pulse-like ground motion and the surface rupture along the seismogenic structure. The surface rupture at the far end of Donghekou participated in the formation of the pulse-like ground motion.
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