摘要
2007年3月5日攀枝花市发生3.5级地震,震中烈度为Ⅴ度,四川省地震局地震监测研究所初步确定地震震中位置为:北纬26.5°,东经101.85°。布设在攀枝花地区9个固定台站的强震仪记录到该次地震的主震振动加速度值,其中,金江台仪器记录到的结果为:水平加速度峰值东西向135.203 cm/s2,南北向126.8 cm/s2,垂直向22.93 cm/s2,并且根据这些数据分析了这次地震的振动特性是以右旋为主的。
Panzhihua M,3.5 Earthquake occurred on 5 March 2007 in south of Sichuan Province. 9 strong acceleration records in the near-field strong acceleration were obtained. The shortest epicenter distance from our seismic station is 5.42 km. The maximum horizontal acceleration record value on EW and NS directions are 135. 4 cm/s^2 and 126. 8 cm/s^2 respectively. The maximum vertical acceleration value is 22. 93 cm/s^2. The characteristic based on the near-field acceleration records is discussed in this paper.
出处
《四川地震》
2008年第3期24-30,共7页
Earthquake Research in Sichuan
关键词
强震观测
强震仪
加速度
逆断层
震源机制
strong motion accelero-gram
accelero-meter
inverse fault
mechanism solution
