MAP PREPARATION OF EARTHQUAKE SURFACE RUPTURES IN THE NATIONAL EXPERIMENTAL FIELD OF EARTHQUAKE MONITORING AND PREDICTION IN SICHUAN AND YUNNAN PROVINCE

doi:10.3969/j.issn.0253-4967.2018.01.003

Abstract

Abstract: To establish an experimental, practical and open scientific experimental platform for earthquake monitoring and prediction, with reference to that of the southern California earthquake center(SCEC), China Earthquake Administration initiated a project for an experimental field in Sichuan and Yunnan Province in 2014. The chosen area is a seismically active region in the southeastern margin of the Tibetan plateau. A series of work compiling basic maps have been launched to collect fundamental data of this area including geologic structure, earthquake geology, geophysics, geodesy, and geochemistry. The map of earthquake surface ruptures in this region is one of these basic maps. This paper presents the compilation of this map. It includes earthquake epicenters, earthquake surface ruptures, faults, strata, magmatic rocks, and geographical data. This work summarized 87 destructive earthquakes, and 22 earthquake surface rupture zones, and analyzed the distribution characterization of earthquake epicenters, strata and magmatic rocks. The content in the map is reliable and integrated. This work will provide reliable earthquake-geology data for establishing geodynamics models and other future research of the national experimental field of earthquake monitoring and prediction in Sichuan and Yunnan Province.

Key words: Active fault, Active tectonics, experimental field in Sichuan and Yunnan, earthquake surface rupture zone

摘要： 借鉴美国南加利福尼亚州地震中心（SCEC）地震监测和地震预报实验的经验，中国地震局于2014年选择在地震活动频度高、强度大的川滇地区，启动了川滇国家地震预报实验场，力争将该实验场建成具有实验性、实践性和开放性的地震预报科学实验平台。为搭建和完善实验场区的地震动力学模型，收集实验场区内地质构造、地震地质、地球物理、大地测量、地球化学等基础资料，编制了《川滇地区地震地表破裂带分布图（1：500 000）》。

关键词: 活动断层, 活动构造, 川滇实验场, 地震地表破裂带

CLC Number:

P315.2

WU Xi-yan, XU Xi-wei, YU Gui-hua, CHENG Jia, CHEN Gui-hua, AN Yan-fen, WANG Qi-xin. MAP PREPARATION OF EARTHQUAKE SURFACE RUPTURES IN THE NATIONAL EXPERIMENTAL FIELD OF EARTHQUAKE MONITORING AND PREDICTION IN SICHUAN AND YUNNAN PROVINCE[J]. SEISMOLOGY AND GEOLOGY, 2018, 40(1): 27-41.

吴熙彦, 徐锡伟, 于贵华, 程佳, 陈桂华, 安艳芬, 王启欣. 国家川滇实验场地震地表破裂带分布图编制[J]. 地震地质, 2018, 40(1): 27-41.

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