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Comparison analysis on macro-anomalies before Ms7.3 Yutian earthquakes in Xinjiang

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doi: 10.11939/jass.2015.01.014
Authors:Gao Xiaoqi; Xiang Yang; Yang Xiaofang; Song Lijun; Sun Jianing; Tan Ming; Nie Xiaohong; Gao Lijuan; Zhang Tao; Yan Long; Liang Hui
Author Affiliations:Primary:
Earthquake Administration of Xinjiang Uygur Autonomous Region, Uygur, China
Volume Title:Dizhen Xuebao Acta Seismologica Sinica
Source:Dizhen Xuebao = Acta Seismologica Sinica, 37(1), p.160-168. Publisher: Kexue Chubanshe, Beijing, China. ISSN: 0253-3782
Publication Date:2015
Note:In Chinese with English summary. 13 refs.; illus., incl. 5 tables, sketch map
Summary:There were two MS7.3 earthquakes occurred in Yutian, Xinjiang, China on 21 March, 2008 and 12 February, 2014, respectively. Seismic geological surveys were carried out after both earthquakes. The surveying results show that the seismic macro-anomalies are quite different in behavior from each other, although the epicenters of the two earthquakes are only 110 km in distance. The present paper analyzed the possible reasons for macro-anomalies of the two Yutian earthquakes in behavior from the aspect of seismogenic faults, focal depth, focal mechanism and the spatio-temporal distribution of the earthquakes. The seismic characteristics in spatial distribution, physical behavior and temporal regularity in Xinjiang region are concluded. In addition, some instructive suggestions were mentioned out for macroscopic observation of earthquake in China, combined with the progress of biological precursors of earthquakes attained in Kazakhstan.
Subjects:Anomalies; Earthquake prediction; Earthquakes; Focal mechanism; Precursors; Spatial distribution; Temporal distribution; Asia; China; Far East; Xinjiang China; Yutian China; Yutian earthquake 2008
Coordinates:N365200 N365200 E0814200 E0814200
Record ID:788481-14
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