Comparison of Geological Disasters Induced by the 2008 Wenchuan and 1303 Hongdong Earthquakes of M 8.0 and Seismic Intensity Characteristics

Xiao-fei Han (), Li Zhang, Shuang-shuang Shi and Bin Dong
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Xiao-fei Han: Earthquake Administration of Shanxi Province
Li Zhang: Earthquake Administration of Shanxi Province
Shuang-shuang Shi: Earthquake Administration of Shanxi Province
Bin Dong: Earthquake Administration of Shanxi Province

A chapter in Proceedings of the 10th Annual Meeting of Risk Analysis Council of China Association for Disaster Prevention (RAC 2022), 2023, pp 127-131 from Springer

Abstract: Abstract The Wenchuan earthquake and the Hongdong earthquake are earthquakes of magnitude 8.0 occurring in the north and south of China: the Hongdong earthquake occurred in the Linfen Basin on the Loess Plateau. The thick Quaternary basin produced surface rupture, sand liquefaction and soft under earthquake action. Many earthquakes such as soil subsidence and landslides have a small population distribution in the earthquake-stricken area. Therefore, the macro-seismic epicenter is located in the center of a densely populated basin, which is inconsistent with the typical epicenter distribution area. The Wenchuan earthquake occurred in the southwest mountainous area where the geological structure is active. A large number of geological disasters such as collapse, landslides, and dammed lakes have been induced. Due to the densely populated areas in the epicenter, the personnel are dense, resulting in a large number of personnel and property losses. A series of typical seismic geological disaster distribution areas and macroscopic earthquake areas have Very good consistency distribution.

Keywords: Collapse; landslide; high-speed slipstream; seismic intensity (search for similar items in EconPapers)
Date: 2023
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DOI: 10.2991/978-94-6463-194-4_18

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