![]() ![]() 2) Next, a fine model of the fault geometry with a higher resolution than that of the initial model is fitted based on the selected earthquake relocation data. This initial model is used to select the earthquake relocation data related to the target fault. 1) An initial model of the fault geometry is constructed from the focal mechanism solution data. In this study, a novel method for obtaining geometric models of ruptured seismogenic faults over a large area is designed based on datasets from surface fault traces, fault orientations, focal mechanism solutions, and earthquake relocations. Fault geometry modeling is crucial for analyzing earthquake preparation and trigger mechanisms, simulating and predicting strong earthquakes, inverting fault slip rates, etc. This seismicity results in significant hazards. ![]() The North–South Seismic Belt produces the most frequent strong earthquakes in the Chinese continental region, such as the MS 8.0 Wenchuan earthquake on and Ms 7.0 Lushan earthquake on 20 April 2013. 2Sichuan Earthquake Administration, Chengdu, China.1College of Oceanography and Space Informatics, China University of Petroleum, Qingdao, China.Yilin Rong 1 Yongliang Bai 1* Mengjiao Ren 1 Mingjian Liang 2 Zhenjie Wang 1
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