现代地质2011,Vol.25Issue(1):114-121,8.
发震断层对微、宏观震中偏离的影响分析:以新疆地区为例
Analysis on the Impact of Seismogenic Fault on the Micro-and Macro-epicenter Deviation:Taking Xinjiang Area as an Example
摘要
Abstract
How to estimate the micro- and macro-epicenter deviation is a key problem to earthquake emergency and rescue response. Taking Xinjiang area as an example, this study investigated the relationship between micro- and macro-epicenter deviation and seismogenics structures, and provided a new method for the fast determination of possible macro-epicenter based on the micro-epicenter and seismogenics structures for the earthquakes Ms≥6. 5. There are 3 types of faults in Xinjiang, including the thrust fault, the thrust-slip fault and the strikeslip fault. The deviation of the ideal micro-epicenter direction depends on the nature of rupture ( such as unilateral rupture, bilateral rupture ), so it is difficult to determine the exact location of the ideal micro-epicenter in the seismogenic fault, and it is a certain randomness, but the deviation of the micro- and macro-epicenter is consistent with the overall direction of tectonic stress direction. The macro-epicenter location is located in or near the seismogenic fault in actual application.关键词
快速估计/宏观震中/微观震中/偏离/断层/发震构造/新疆地区分类
天文与地球科学引用本文复制引用
兰晓雯,田家勇,谢周敏,姜文亮,陆鸣,时振梁..发震断层对微、宏观震中偏离的影响分析:以新疆地区为例[J].现代地质,2011,25(1):114-121,8.基金项目
地震行业科研专项项目(200708047) (200708047)
中国地震局地壳应力研究所基本科研业务专项资金资助项目(ZDJ2007-2 ()
ZDJ2010-2). ()