华南地震2016，Vol.36Issue(2)：13-19,7.DOI:10.13512/j.hndz.2016.02.003
常德及邻区小震重新定位与速度结构的联合反演
Joint Inversion for Relocation and Velocity Structure of Small Earthquakes in Changde and Its Adjacent Region
摘要
Abstract
In order to understand the deep tectonic environment and the seismic activity in Changde and its adjacent areas, the paper relocates the earthquakes by using seismic observations of Changde and its adjacent areas during 1987 and 2013, a joint inversion method of earthquake location and velocity structure. The results show that about 90% earthquakes occurred within 10 km underground, and belonged to shallow focus earthquakes occurring in the upper and middle crust; although earthquakes in Shimen occurred in the mining area, deep seismic activity occurred in the junction of high velocity body and low velocity body speed, and close to the side of the high velocity body, which seems to related to the deep structure and the fault activity; in the range of Dongting Lake with the depth of 10-15 km, there is a low velocity and high conduction layer.关键词
地震定位/常德及邻区/速度结构/联合反演/深部构造Key words
Earthquake location/Changde and its adjacent region/Velocity structure/Joint inversion/Deep tectonic environment分类
天文与地球科学引用本文复制引用
敬少群,王佳卫..常德及邻区小震重新定位与速度结构的联合反演[J].华南地震,2016,36(2):13-19,7.基金项目
湖南省科技厅社会发展支撑计划(2012SK3306) （2012SK3306）
