[1]SU You-jin,LIU Jie.Quiescence Anomalies of M≥6.0 Earthquakes before the 2008 Wenchuan(M8.0)Earthquake in Sichuan-Yunnan Region[J].Journal of Seismological Research,2010,33(02):119-124.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
33
Number of periods:
2010 02
Page number:
119-124
Column:
Public date:
2010-02-01
- Title:
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Quiescence Anomalies of M≥6.0 Earthquakes before the 2008 Wenchuan(M8.0)Earthquake in Sichuan-Yunnan Region
- Author(s):
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SU You-jin 1; LIU Jie2
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(1.Earthquake Administration of Yunnan Province,Kunming 650224,Yunnan,China)(2.China Earthquake Networks Center,CEA,Beijing 100036,China)
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- Keywords:
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Wenchuan earthquake; seismic quiescence; Sichuan-Yunnan region
- CLC:
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P315.7
- DOI:
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- Abstract:
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It appeared seismic anomaly quiescence before the Wenchuan earthquake(M=8.0),May 12,2008,in Sichuan-Yunnan region.The quiescence time for the earthquakes with M≥6.0,M≥6.5 and M≥7.0 is about 3.63 years,8.23 years and 12.27 years respectively.By the systematic analysis of the time distribution features for the earthquakes with M≥6.0,M≥6.5 and M≥7.0 from 1900 to 2008 occurred in Sichuan-Yunnan region,the results presents these quiescence anomalies are the very prominent in the past 100 years seismicity in this region.It also presents that the quiescence anomalies for the earthquakes with M≥6.0(above 1.0σ)or M≥6.5(above 1.5σ),have notability and universality when the quiescence time for the earthquake with M≥7.0 is above 5 years.Therefore,it could be an important or typical phenomena before this type earthquakes with M≥7.0 in Sichuan-Yunnan region.