西北地震学报2011,Vol.33Issue(4):342-348,7.
1306年宁夏固原地震考证与发震构造探讨
Textural Research on the Guyuan Earthquake in 1306 in Ningxia Region, and Discussion on Its Seismogenic Structure
摘要
Abstract
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.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Key words
1306 Guyuan earthquake/ Textural research of historical earthquake/ Seismogenic structure/ Liupanshan eastern piedmont fault分类
天文与地球科学引用本文复制引用
史志刚,雷中生,袁道阳,刘兴旺..1306年宁夏固原地震考证与发震构造探讨[J].西北地震学报,2011,33(4):342-348,7.基金项目
中国地震局科研业务专项《中国大陆7-8级地震中长期预测研究》 ()
国家自然科学基金(40872132) (40872132)
中国地震局兰州地震研究所论著号:LC20110049 ()