江苏省部分井下地震计监测能力差异初探

摘要

A part of seismic stations in Jiangsu Province have been provided with the high dynamic range,wide fre-quency and high performance underground seismometer CMG - 3TB. The installation of these instruments is finan-cial aid by“ the Fifteen Plan”Project. The observation data from three seismic stations,Liyang,Nantong and Yancheng,are analyzed. The monitoring ability of the underground seismometers is discussed. Then the issues a-bout the environment noise,the underground seismometer installation and the other supplementary equipment are analyzed in this paper.%江苏部分地震台站在“十五”项目改造过程中安装了大动态、宽频带的高性能地震计—CMG -3TB 井下地震计。笔者选取了溧阳台、南通台和盐城台作为研究样本，对比了三个台的监测能力并对地震计的监测能力进行了分析。还从各台台基噪声、测震监测设备和地震计安装三个方面对台站监测能力差异的原因进行了分析。