| On the Consistency of Large Earthquake Moment and Strain Rate Inferred from GPS Data in North China |
| |
| 作者姓名： | Wan Yongge |
| |
| 作者单位： | Wan Yongge 1，2)，He Zhende 2)，Shen Zhengkang 1，3)，Gan Weijun 1) Wang Aijun 4) 1) State Key Laboratory of Earthquake Dynamics，Institute of Geology，CEA，Beijing 100029，China 2) College of Disaster Prevention Techniques，Yanjiao 065201，Sanhe，China 3) Dept. of Earth and Space Sciences，University of California，Los Angeles，CA 90095-1567，USA 4) Middle School of Guantao County，Hebei Province，Guantao 057750，China |
| |
| 基金项目： | This project was sponsored by the Key Basic Research Program of the Ministry of Science and Technology （2003CCB00600） and the National Science Foundation （40174019 and 40374012）. |
| |
| 摘 要： | INTRODUCTIONStudyingthe relation between the accumulation of crustal strain and the release rate of seismicmoment is animportant subject of earth science research.It is also one of the important methods ofestimatingthe future seismic risk(Ward,1994;1998a;…
|
| 关 键 词： | 中国 北方地区 地震 连贯性 GPS技术 全球定位系统 震级 |
| 收稿时间： | 2004-10-13 |
| 修稿时间： | 2004-11-11 |
On the Consistency of Large Earthquake Moment and Strain Rate Inferred from GPS Data in North China |
| |
| Wan Yongge.On the Consistency of Large Earthquake Moment and Strain Rate Inferred from GPS Data in North China[J].Earthquake Research in China,2005,19(3):249-258. |
| |
| Authors: | Wan Yongge |
| |
| Institution: | State Key Laboratory of Earthquake Dynamics, Institute of Geology, CEA, Beijing 100029, China;College of Disaster Prevention Techniques, Yanjiao 065201, Sanhe, China |
| |
| Abstract: | The new GPS data can map crustal strain rates over large areas with a useful degree of precision. Stable strain measurement results open the door for improved estimates of earthquake occurrence. The Kostrov's formula (1974) translates the smoothed strain rates in North China into geodetic moment rates. In North China, the ratio of seismic moment released to moment accumulated from GPS measurement is 60.6% in NS direction, 68.9% in EW direction, and 104.1% in NE shear direction. The near unit ratio points to the reliability of GPS measurements there. The combination of historical seismicity and GPS measurement offers a powerful attack on earthquake hazard. |
| |
| Keywords: | North China Seismic moment Magnitude Accumulated strain |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国地震研究》浏览原始摘要信息 |
| 点击此处可从《中国地震研究》下载免费的PDF全文 |
