华北地区1900—1970年5级以上地震发震位置与震源机制研究

发布时间：2018-05-15 20:11

  本文选题：华北地区 + 历史地震　； 参考：《地球物理学报》2016年11期

【摘要】：本文通过整理世界地震台网1900—1970年世界台站震相报告,对该时期发生在我国华北地区震级5级以上强震的震源位置及震源机制(断层面解)进行了测量.具体开展了以下三点工作:(1)使用1900—1970年之间Shide Circulars(BAASSC,1900—1912),《国际地震资料汇编》(ISS)和EHB Bulletin的震相到时,对该时间范围内的22个地震事件重新定位,得到了21个地震事件的可靠结果;(2)使用1933年至1970年之间ISS的P波初动,对该时间范围内的15个地震事件求解震源机制解,得到了其中12个地震事件的震源机制解的可靠结果,从而丰富了华北地区基于全球地震台网观测的1900—1970年历史强震目录震源机制资料;(3)基于华北地区地震地质及区域构造应力场研究结果,推断了华北地区M≥5.0的部分缺乏地震资料观测的历史地震断层面参数,并对这种方法推断的断层面参数的可靠性进行了讨论.
[Abstract]:In this paper, the focal location and focal mechanism (fault plane solution) of strong earthquakes with magnitude 5 or above occurred in North China during the period of 1900-1970 are measured by sorting out the world seismograph report of the world seismograph network from 1900 to 1970. The following three specific tasks have been carried out: (1) using the seismograms of Shide Circulars BAASSC 1900-1912 (International Seismological data Repertory) and EHB Bulletin from 1900-1970 to relocate 22 earthquake events within that time range. A reliable result of 21 earthquake events is obtained. Using the initial P wave of ISS from 1933 to 1970, the focal mechanism solutions are obtained for 15 earthquake events in this time range, and the reliable results for the focal mechanism solutions of 12 of them are obtained. This enriches the focal mechanism data of the historical strong earthquakes catalogue from 1900 to 1970 in North China based on the global seismograph.) based on the results of the study on seismic geology and regional tectonic stress field in North China, In this paper, the authors infer the parameters of fault plane of historical earthquake where M 鈮，

本文编号：1893763