西北地震学报2012，Vol.34Issue(4)：342-349,8.DOI:10.3969/j.issn.1000-0844.2012.04.0342
地震震中实时动态定位的方法研究
Research on Real-time Evolutionary Earthquake Epicentral Location
摘要
Abstract
In a earthquake early warning system, the ability to quickly locate devastating earthquake is very important. In this paper a new method to estimate earthquake epicentral region, hyperbolic curve range and epicenter point from only the three earliest P-wave arrival times in a seismic network is developed. In the method the constraint conditions that some stations record P arrivals the others do not record P arrivals, and seismic wave travelling characteristics are considered fully to improve earthquake epicentral location accuracy. The method is applied to P-wave seismic data from the Virtual Seismic Network of Shandong province with 79 stations for 425 earthquakes in 2009 - 2010, the results show agreement with actual earthquake epicentral locations. The method can satisfy the real-time and accurate need in the earthquake early warning system.关键词
Voronoi剖分/双台子台阵/地震动态实时定位/山东数字测震台网/地震预警Key words
Voronoi cells/ Two-station subarray/ Real-time evolutionary location/ Digital Seismic Network of Shandong Province/ Earthquake warning分类
天文与地球科学引用本文复制引用
刘希强,孙亚强,赵冰,王庆民,赵大鹏,赵瑞,李铂..地震震中实时动态定位的方法研究[J].西北地震学报,2012,34(4):342-349,8.基金项目
国家科技支撑计划课题(2012BAK19B04) （2012BAK19B04）
地震科技星火计划项目(XH12029) （XH12029）
