[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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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:
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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
- Author(s):
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ZHAO Xiaoyan1; SU Youjin1; MENG Lingyuan2; ZANG Yang2
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(1.Yunnan Earthquake Agency,Kunming 650224,Yunnan,China;2.China Earthquake Networks Conter, Beijing 100045, China)
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- Keywords:
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the Wushi MS7.1 earthquake; the Hualian MS7.3 earthquake; long-term quiescence of the earthquakes; the North-South Seismic Belt
- CLC:
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P315.72
- DOI:
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10.20015/j.cnki.ISSN1000-0666.2025.0004
- Abstract:
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We analyzed the long-term quiescence before the 2024 Wushi MS7.1 earthquake in Xinjiang Uygur Autonomous Region and the Hualian MS7.3 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 MS7.1 earthquake marked the end of the 31-year-long quiescent state of MS≥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 MS7.3 earthquake marked the end of the 17-year-long quiescent state of MS≥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 MS7.0 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 MS7.0 earthquake in Alxa Left Banner,Alxa League,Inner Mongolia in 1954.So,the risk of strong earthquakes with MS≥7.0 in Yunnan region and Gansu-Ningxia region is relatively high,and Yunnan should be paid more attention to.