地震学报2009，Vol.31Issue(4)：403-410,8.
四川地区地震动峰值衰减规律研究
Ground motion attenuation relation for small to moderate earthquakes in Sichuan region
摘要
Abstract
Based on the data collection of earthquake monitoring stations and networks in Sichuan province, 27 bedrock stations from May 12 to June 10 in 2008 acquired 8505 broadband velocity records from 105 earthquakes (magni-tude ML=4.0-6.4, epicentral distance △=26-623 km), using real-time sim-ulation methods we obtained corresponding acceleration records. Then by a re-gression analysis of data the peak ground acceleration and velocity attenuation relation for small and moderate bedrock Sichuan earthquakes were obtained. The relation is verified by a recent 4.8 earthquake in Wenchuan. This paper presents the attenuation relations for Sichuan region by using Sichuan Seismic Network records.关键词
实时仿真/峰值加速度/峰值速度/回归分析/衰减关系Key words
real-time simulation/peak ground acceleration/peak ground veloci-ty/regression analysis/attenuation relation分类
天文与地球科学引用本文复制引用
康兰池,金星..四川地区地震动峰值衰减规律研究[J].地震学报,2009,31(4):403-410,8.基金项目
地震科学联合基金(105034)资助. （105034）
