| 赤峰中心地震台面波震级偏差分析 |
| |
| 引用本文： | 郭延杰,包莹,齐彬彬,于章棣,范东海,黄瑞滨,王旭东.赤峰中心地震台面波震级偏差分析[J].地震地磁观测与研究,2020,41(2):57-61. |
| |
| 作者姓名： | 郭延杰 包莹 齐彬彬 于章棣 范东海 黄瑞滨 王旭东 |
| |
| 作者单位： | 1.中国内蒙古自治区 024000 内蒙古自治区赤峰中心地震台;2.中国北京 100085 中国地震局地壳应力研究所;3.中国呼和浩特 010010 内蒙古自治区地震局 |
| |
| 基金项目： | 内蒙古自治区地震局局长基金（项目编号：2019JC16） |
| |
| 摘 要： | 地震震级是地震三要素之一,如何准确测定震级对于地震速报与应急工作至关重要。选取赤峰中心地震台2016年1月1日到2019年5月31日测定的674个地震事件的面波震级进行分析,并与中国地震台网中心发布的正式目录进行比较,并根据不同的震中距和方位角,给出面波震级偏差及校正值。结果表明:随着震级和震中距增大,震级偏差增大;赤峰中心地震台以北地区的不同方位角范围内,地震面波震级偏差分别为0.15、-0.13,以南地区的不同方位角范围内,地震面波震级偏差分别为0.22、0.16;根据参考校正值重新计算震级,通过震级对比结果表明校正效果较好。
|
| 关 键 词： | 面波震级 震级偏差 校正值 |
Analysis of surface wave magnitude deviation at Chifeng Center Seismic Station |
| |
| Guo Yanjie,Bao Ying,Qi Binbin,Yu Zhangdi,Fan Donghai,Huang Ruibin,Wang Xudong.Analysis of surface wave magnitude deviation at Chifeng Center Seismic Station[J].Seismological and Geomagnetic Observation and Research,2020,41(2):57-61. |
| |
| Authors: | Guo Yanjie Bao Ying Qi Binbin Yu Zhangdi Fan Donghai Huang Ruibin Wang Xudong |
| |
| Institution: | 1.Chifeng Central Seismic Station of Inner Mongolia Autonomous Region, Inner Mongolia Autonomous Region 024000, China;2.The Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China;3.Earthquake Agency of Inner Mongolia Autonomous Region, Hohhot 010010, China |
| |
| Abstract: | Earthquake magnitude is one of the three essential elements of an earthquake, determining magnitude accurately is very important for earthquake rapid report and emergency. Surface wave magnitude of 674 earthquakes measured at the Chifeng Central Seismic Station from January 1, 2016, to May 31, 2019, was selected for analysis and statistics. The earthquake magnitudes were compared with the official earthquake catalogue released by the China Earthquake Networks Center; the surface wave magnitude deviations and correction values are obtained for different epicentral distances and azimuths. It is found that the magnitude deviation increases with the increase of earthquake magnitude and epicentral distance. Within the range of different azimuths in the north region of Chifeng Central Seismic Station, the surface wave magnitude deviations are 0.15 and -0.13; and within the range of different azimuths in the south region of Chifeng Central Seismic Station, the surface wave magnitude deviations are 0.22 and 0.16. Recalculate the magnitudes using correction values, and the results of the magnitude comparison show that the correction effect is good. |
| |
| Keywords: | surface wave magnitude magnitude deviation correction value |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地震地磁观测与研究》浏览原始摘要信息 |
| 点击此处可从《地震地磁观测与研究》下载免费的PDF全文 |
|
