1306年宁夏固原地震考证与发震构造探讨

英文篇名：Textural Research on the Guyuan Earthquake in 1306 in Ningxia Region,and Discussion on Its Seismogenic Structure
中文刊名：西北地震学报
英文刊名：Northwestern Seismological Journal
作者：史志刚 ; 雷中生 ; 袁道阳 ; 刘兴旺
英文作者：SHI Zhi-gang1 ; 2 ; LEI Zhong-sheng1 ; YUAN Dao-yang1 ; 2 ; LIU Xing-wang1 ; 2 ; (1.Lanzhou Institute of Seismology ; CEA ; Lanzhou 730000 ; China ; 2.Lanzhou National Observatory of Geophysics ; Lanzhou 730000 ; China)
中文关键词：1306年固原地震 ; 历史地震考证 ; 发震构造 ; 六盘山东麓断裂
英文关键词：1306 Guyuan earthquake ; Textural research of historical earthquake ; Seismogenic structure ; Liupanshan eastern piedmont fault
出版日期：2011-12-30
机构：中国地震局兰州地震研究所;兰州地球物理国家野外科学观测研究站;
年：2011
期：04
出版单位：西北地震学报

摘要

根据历史地震资料重新考证和野外实地调查结果,圈定的1306年宁夏固原地震重破坏区(Ⅷ度区)位于固原、开城和朝那一带,极震区(Ⅸ～Ⅹ度)位于固原开城附近,其震级达7级左右。地震重破坏区长轴方向为NNW向,大致与该区六盘山东麓断裂的固原—和尚铺段相吻合,该段断裂为全新世活动的左旋逆冲断裂,局部段残存有类似地震破裂带遗迹,推测与本次地震有关。
According to the results of renewly checked historical earthquake data and field investigation to 1306 Guyuan earthquake in Ningxia Hui Autonomous Region,we delineated that the area damaged seriously by the earthquake(Ⅷ intensity) is located in the zone which involve Guyuan,Kaicheng and Chaona.The meizoseismal area(Ⅸ~Ⅹ intensity) is near Kaicheng of Guyuan countytwon,and magnitude of the event was about M7.The direction of the long axis of the area damaged seriously is NNW,and it is basically consistent with the Guyuan-Heshangpu segment of the Liupanshan eastern piedmont fault.This fault segment is active sinistral reverse fault in Holocene,locally preserves the remnants which is similar to the earthquake rupture zone and has the paleoseismic section.We concluded that this segment fault is relative to the 1306 Guyuan earthquake.

引文

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