大地震同震影响的位错理论模型分析  

Analysis of co-seismic affection of earthquake based on dislocation theory

作　　者：陈琼[1] 施坤[1] 王凡[2] 张鹏[2] 

机构地区：[1]昆明理工大学,昆明650000 [2]国家基础地理信息中心,北京100820

出　　处：《测绘科学》2016年第6期59-63,91,共6页Science of Surveying and Mapping

摘　　要：位错理论对于应用大地测量以及地球物理信息研究震源机制,进行地震预报、断层反演以及火山活动等研究都有一定的重要性。针对地震对框架的影响,该文通过使用OKADA模型对3个等级的地震断层破裂面进行了模拟,分析了在理想数据下地震对框架的影响范围,这样有助于地震后各方面的应急恢复;同时运用OKADA模型对2011年日本宫城Mw9.0级地震数据进行了计算分析,得出我国距离日本较近的东北地区的框架点受到一些影响,但不会对区域的地震活动产生大的影响。It is self-evident significant that dislocation theory is used to study the focal mechanism,forecasting earthquakes,volcanic activities and inversion of the faults using geodetic and geophysical information.In this paper,considering impaction of earthquakes on the framework,OKADA model was used to simulate the earthquake fault rupture surface with three levels under ideal data.At the same time,the real seismic data were processed.Comparisons between simulated and real data could provide a favorable treatment for all aspects of works after the earthquake.The Miyagi earthquake（2011）data was also calculated and analyzed through OKADA model and came to a conclusion：there is trifling influence on the frame point close to Japan in northeast China,but cannot exert a huge impact on the regional seismic activity.

关 键 词：位错理论 国际地球参考框架 地震 应急恢复 

分 类 号：P315.63[天文地球—地震学]