摘要
震中烈度是震源附近宏观破坏最为严重区域的地震烈度,快速判定其大小对指导抗震救灾具有重要意义。搜集整理了我国大陆地区1966-2014年期间的175次震级在5.0级以上的地震事件,回归得到了震中烈度与震级和震源深度的统计经验关系。与以前的研究结果相比,所选取的基础数据数量更大,而且均是近50 a来的地震事件,地震参数信息更为准确和统一。研究结果可用来快速判定震中烈度的大小。
Epicentral intensity is the intensity of the region located in the vicinity of seismic focus and with most se- rious macroscopic destruction. The rapid assessment of the epicentral intensity is of great significance for guiding earthquake relief work. 175 earthquakes （M≥5.0） occurring in China from 1966 to 2014 were collected and sor- ted out, based on which, the statistical empirical relationship between epicentral intensity, magnitude and focal depth was obtained. Compared with the previous work, the basic data in this study have a larger number and the collected earthquakes all occurred in the last 50 years with more accurate and uniform parameter information. The results could be used for the rapid assessment of epicentral intensity.
出处
《自然灾害学报》
CSCD
北大核心
2016年第2期139-145,共7页
Journal of Natural Disasters
基金
国家自然科学基金资助项目(51508295,51378271,51478231)
山东省高等学校科技计划项目(J15LG06)
山东省泰山学者优势特色学科人才团队支持计划资助~~
关键词
震中烈度
震级
震源深度
统计回归
epicentral itensity
magnitude
focal depth
statistical regression
