四川木里2017年ML4.9/MS4.4级地震序列高精度地震目录重建

柳存喜; 刘骅标; 张晨; 刘冠男; 杜兴忠

doi:10.3799/dqkx.2025.206

Volume 51 Issue 1

Jan. 2026

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Article Navigation > Earth Science > 2026 > 51(1): 173-184

Liu Cunxi, Liu Huabiao, Zhang Chen, Liu Guannan, Du Xingzhong, 2026. 2017 ML4.9/MS4.4 Muli, Sichuan, Earthquake Sequence: A High-Precision Seismic Catalog Reconstruction. Earth Science, 51(1): 173-184. doi: 10.3799/dqkx.2025.206

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Liu Cunxi, Liu Huabiao, Zhang Chen, Liu Guannan, Du Xingzhong, 2026. 2017 M_L4.9/M_S4.4 Muli, Sichuan, Earthquake Sequence: A High-Precision Seismic Catalog Reconstruction. Earth Science, 51(1): 173-184. doi: 10.3799/dqkx.2025.206

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2017 M_L4.9/M_S4.4 Muli, Sichuan, Earthquake Sequence: A High-Precision Seismic Catalog Reconstruction

doi: 10.3799/dqkx.2025.206

1.
Yalong River Hydropower Development Co., Ltd., Chengdu 610051, China
2.
Guiyang Engineering Corporation Limited of Power China, Guiyang 550000, China
3.
School of Resources and Environment, University of Electronical Science and Technology of China, Chengdu 611731, China

Received Date: 2025-06-30
Publish Date: 2026-01-25

Abstract

Abstract

To investigate the characteristics of the 2017 M_L4.9/M_S4.4 earthquake sequence in Muli, Sichuan, an end-to-end framework, involving raw continuous seismic waveform data processing to seismic phase detection, earthquake event identification, and earthquake location, was constructed based on lightweight artificial intelligence methods, template matching techniques, and earthquake location methods. This system was used to process raw waveform data from 28 stations within a 60 km radius of the epicentral area between September 1 and 30, 2017, reconstructing a high-resolution seismic catalog containing 9 252 foreshocks, mainshocks, and aftershocks. Based on focal mechanism solutions of 43 M_L≥2.5 earthquakes, it conducted a comprehensive analysis of the seismicity patterns.The refined catalog exhibits enhanced consistency with Gutenberg-Richter magnitude-frequency statistics and clearly delineates spatiotemporal evolutionary features.The seismic sequence occurred within a complex NW-SE trending strike-slip fault system bounded by the Jinpingshan Fault, with the bilateral expansion of events from the mainshock toward the NW and SE, and it was preliminarily attributed to driving by afterslip.
- Muli earthquake,
- seismic catalog,
- seismic detection and identification,
- end-to-end framework,
- seismology

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References(52)

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2017 ML4.9/MS4.4 Muli, Sichuan, Earthquake Sequence: A High-Precision Seismic Catalog Reconstruction

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2017 M_L4.9/M_S4.4 Muli, Sichuan, Earthquake Sequence: A High-Precision Seismic Catalog Reconstruction