摘要
2004年12月26日印尼苏门答腊北部发生了8·7级特大地震,震后发现新疆地区的部分应变、地倾斜、水温和水位等,都记录到了不同程度的异常现象,且在清理中发现,不同的仪器记录能力相差很大,如数字化形变观测仪器的记录能力得到提高,克服了模拟记录在中强震发生时出现的限幅和断点等丢失信息现象;但数字化水位仪器的记录能力却有所下降。本文将上述现象简述并予以分析,以期对进一步深入研究这次地震对我国未来地震趋势的影响有所帮助。
The huge earthquake of M 8. 7 occurred in the north Sumatera, Indonesia on Dec. 12 2004. Authors found some anomalous phenomena on strain, ground tilt, water temperature, water level, etc. in Xinjiang region after the huge earthquake. The abilities of various equipments for recording earthquakes are different, and the difference is found to be large. For examples, the ability of digital strain observational equipments is better than that of the analogous. Unlike the analogous record, there is no clipped and break point in the digital seismogram when the medium-strong earthquakes are recording. The ability of digital water level equipment, however, is lower. The above phenomena were analyzed for the purposes of helping us to improve analytical effect of the future huge earthquake in our country.
出处
《地震地磁观测与研究》
2006年第3期40-46,共7页
Seismological and Geomagnetic Observation and Research
基金
新疆地震科学基金(200509)资助项目
关键词
印尼8.7级强烈地震
前兆观测
同震异常
M 8.7 earthquake in Indonesia, precursor observation, coseismal anomaly
