援印尼地震监测台网及其自动定位系统效能评估  

Performance Evaluation of Indonesia-China Digital Seismographs Network and Earthquake Automatic Location System

作　　者：章静[1,2] 李晓杰[2] 杨桂存[2] 丁秋琴[2] 李璐彬[2] 

机构地区：[1]中国科技大学地球和空间科学学院,安徽合肥230026 [2]中国地震台网中心,北京100045

出　　处：《地震》2013年第2期132-141,共10页Earthquake

基　　金：援印度尼西亚地震监测和海啸预警系统项目

摘　　要：本文首先对援印尼地震监测台网及数据处理系统的构建作了简要的介绍。在此基础上对该台网系统的监测能力作了评估,并选取试运行以来记录到的印尼地区32次大地震事件,将系统自动产出的定位结果和USGS公布的结果进行了比对分析。结果表明,援建台网地震自动定位系统运行稳定,对大地震的自动定位结果基本可信。实现了2分钟以内对印尼境内及周边一些区域的强震自动产出首次定位结果并发出强震警报,3～4分钟左右完成较精确的自动定位,对于印尼地区6级以上地震,自动定位系统可在5分钟内给出较精确的地震三要素。援建系统不仅提高了印尼及周边区域的地震监测能力、地震定位精度以及地震速报能力,也为其海啸预警提供了有效保障。This paper first briefly introduces the construction of Indonesia-China Digital Seismographs Network （ICDSN） and data processing system. Then we evaluate seismic monitoring capability. Selecting the seismic data of 32 large earthquakes in Indonesian re- gion from 2009 from the, the automatic location results of ICDSN and USGS published re- sults are compared and analyzed. The results show that the automatic location system of ICDSN is stable in operation, automatic location results for large earthquakes are basically credible. It can output primary location result and warning of large earthquakes in Indonesia or surrounding areas in 2 minutes. It takes 3 - 4 minutes for accurate results. For earthquakes with magnitude above 6, it takes 5 minutes for accurate results. ICDSN not only improves seismic monitoring capability, earthquake location accuracy and earthquake quick report of Indonesia, but also provides effective guarantee for tsunami warning.

关 键 词：援印尼地震监测台网 自动定位 定位偏差 效能评估 

分 类 号：P315.7[天文地球—地震学]