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[1]ZHAO Xiaoyan,SU Youjin,MENG Lingyuan,et al.Research on the Long-term Quiescence of Large Earthquakes before the Wushi,Xinjiang MS7.1 Earthquake and the Hualian,Taiwan MS7.3 Earthquake in 2024 and the Strong-earthquake Risk in Chinese Mainland[J].Journal of Seismological Research,2025,(01):32-40.[doi:10.20015/j.cnki.ISSN1000-0666.2025.0004 ]

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Research on the Long-term Quiescence of Large Earthquakes before the Wushi,Xinjiang M_S7.1 Earthquake and the Hualian,Taiwan M_S7.3 Earthquake in 2024 and the Strong-earthquake Risk in Chinese Mainland

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: Number of periods: 2025 01 Page number: 32-40 Column: Public date: 2024-12-20

Title:: Research on the Long-term Quiescence of Large Earthquakes before the Wushi,Xinjiang M_S7.1 Earthquake and the Hualian,Taiwan M_S7.3 Earthquake in 2024 and the Strong-earthquake Risk in Chinese Mainland

Author(s):: ZHAO Xiaoyan¹; SU Youjin¹; MENG Lingyuan²; ZANG Yang²; (1.Yunnan Earthquake Agency,Kunming 650224,Yunnan,China；2.China Earthquake Networks Conter, Beijing 100045, China)

Keywords:: the Wushi M_S7.1 earthquake; the Hualian M_S7.3 earthquake; long-term quiescence of the earthquakes; the North-South Seismic Belt

CLC:: P315.72

DOI:: 10.20015/j.cnki.ISSN1000-0666.2025.0004

Abstract:: We analyzed the long-term quiescence before the 2024 Wushi M_S7.1 earthquake in Xinjiang Uygur Autonomous Region and the Hualian M_S7.3 earthquake in Taiwan Province of China,and discussed the earthquake tendency in Chinese Mainland after the quiescence.Then we further analyzed the long-term,quiescent of large earthquakes that still exist in 2 regions in Chinese Mainland and the earthquake risk which the 2 regions are facing.The Wushi M_S7.1 earthquake marked the end of the 31-year-long quiescent state of M_S≥7.0 earthquakes in the Tianshan Earthquake Zone,which may indicate that strong earthquakes will enter a new active-period in the Tianshan Earthquake Zone.The Hualian M_S7.3 earthquake marked the end of the 17-year-long quiescent state of M_S≥7.0 earthquakes in Taiwan,which may indicate that strong earthquakes will enter a new active-period of in Taiwan region.Strong-earthquake activity has been quiescent for over 28 years in Yunnan region in the southern section of the North-South Seismic Belt since the Lijiang M_S7.0 earthquake in 1996,and strong-earthquake activity has been quiescent for over 70 years in Gansu-Ningxia region in the northern section of the North-South Seismic Belt since the M_S7.0 earthquake in Alxa Left Banner,Alxa League,Inner Mongolia in 1954.So,the risk of strong earthquakes with M_S≥7.0 in Yunnan region and Gansu-Ningxia region is relatively high,and Yunnan should be paid more attention to.

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Last Update: 2025-01-01