湖州台高采样率倾斜仪同震响应初析

Preliminary Analysis of Coseismic Response of Tiltmeters with High Sampling Rate Used at Huzhou Seismostation

摘要:

对比分析VP、SSQ秒采样倾斜仪及JCZ-1T测震仪在同震时段的响应特征和震相参数，三者能记录到清晰的P波、S波和面波,VP和JCZ-1T记录到的S波比SSQ清晰。VP记录的地震波频带宽度和JCZ-1T记录的较一致。2013年4月16日伊朗、巴基斯坦交界地区M7.7地震前，JCZ-1T地震仪、SSQ倾斜仪同时记录到周期为15~30 s的缓慢运动事件。

Abstract:

By comparing the response characteristics and seismic phase parameters recorded by VP, SSQ second sampling tiltmeter and JCZ-1T seismometer in the same period of the earthquake, this paper presents that the three instruments can all record clear P wave, S wave and surface wave, and S wave recorded by VP and JCZ-1T is clearer than that recorded by SSQ. Bandwidth of seismic waves recorded by VP is more consistent with that of JCZ-1T records. Before the Iran and Pakistan boundary M7.7 earthquake on April 16, 2013, JCZ-1T seismometer and SSQ tiltmeter simultaneously record a slowly moving event at intervals of 15~30 s.