云南大理及其邻近地区活断层和地震活动特征

地震地质 ›› 1986, Vol. 8 ›› Issue (4): 51-61.

云南大理及其邻近地区活断层和地震活动特征

李祥根¹, 冉勇康¹, 彭贵¹, 张靖², 虢顺民¹, 向宏发¹, 陈铁牛², 张国伟², 计凤桔¹, 叶永英¹

1. 国家地震局地质研究所;
2. 云南省地震局

收稿日期:1984-07-31 出版日期:1986-12-01 发布日期:2009-11-25

ACTIVE FAULTS AND THEIR RELATIONSHIP WITH SEISMIC ACTIVITIES IN DALI OF YUNNAN PROVINCE AND ITS ADJACENT REGIONS

Li Xianggen¹, Ran Yonkang¹, Peng Gui¹, Zhang Jing², Quo Shunmin¹, Xiang Hongfa¹, Chen Tieniu², Zhang Guowei², Ji Fengju¹, Ye Yongying¹

1. Institute of Geology, State Seismoogical Bureau;
2. Seismological Bureau of Yunnan Province

Received:1984-07-31 Online:1986-12-01 Published:2009-11-25

摘要/Abstract

摘要： 地质证据表明,红河断裂带的活动强度以其中段的大理及其附近地区最强烈,整个断裂带自新生代以来的活动时序也从南、北两端逐渐向中段的大理地区变新,可与断裂带中段的现代强震分布相对应。地质现象及地质年龄证据表明全新世中、晚期在大理及其邻近地区有周期为1500年左右的五个从平静到活动的地质事件。用断裂位错距离和位错速率计算的地震复发周期表明,每隔1500年左右的地质事件可能伴随着一次8级地震。

Abstract: Geological evidence indicates that the fault activity on the middle segment (Dali and its adjacent region) is the strongest along the Honghe fault (the Red River Fault).The active fault shows a distinct tendency of getting younger from the ends to the middle segment of the fault,i.e,faulting in the Dali area is the youngest,which coincides with the distribution of recent strong shocks.Geological evidence and its ages show that five events with a recurrence interval 昽f about 1500 years occurred in the middle-late Holocene time,presumably associated with an earthquake of M=8.

李祥根, 冉勇康, 彭贵, 张靖, 虢顺民, 向宏发, 陈铁牛, 张国伟, 计凤桔, 叶永英. 云南大理及其邻近地区活断层和地震活动特征[J]. 地震地质, 1986, 8(4): 51-61.

Li Xianggen, Ran Yonkang, Peng Gui, Zhang Jing, Quo Shunmin, Xiang Hongfa, Chen Tieniu, Zhang Guowei, Ji Fengju, Ye Yongying. ACTIVE FAULTS AND THEIR RELATIONSHIP WITH SEISMIC ACTIVITIES IN DALI OF YUNNAN PROVINCE AND ITS ADJACENT REGIONS[J]. SEISMOLOGY AND GEOLOGY, 1986, 8(4): 51-61.