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DOI | 10.1029/2019GL086240 |
Real-Time Earthquake Location Based on the Kalman Filter Formulation | |
Chen, Yukuan1; Zhang, Haijiang1,2,3; Eaton, David W.4 | |
2020-05-10 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Canada |
英文摘要 | Seismic location is an essential task for earthquake monitoring. The general practice is to locate earthquakes using arrival times from all recorded stations. However, this is not well suited for real-time applications such as the earthquake early warning, where earthquake locations need to be determined and updated as more stations are triggered. Here we have developed a real-time linear location method based on a Kalman filter formulation. It updates location and its uncertainty whenever a station is triggered. We have demonstrated its effectiveness with synthetic and real data sets in Parkfield, California in a retrospective mode. The tests show that we can obtain relatively accurate locations and reliable uncertainties for earthquakes with 4 or 5 stations triggered. In particular, without considering the station latency, accurate earthquake locations can be achieved retrospectively in about 3.3 and 2.7 s for the 2003 San Simeon Mw6.6 earthquake and 2004 Parkfield Mw6.0 earthquake, respectively. |
英文关键词 | Kalman filter real-time earthquake location earthquake early warning |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000543387400035 |
WOS关键词 | SEISMIC EVENT LOCATION ; ALGORITHM ; INVERSION ; PARKFIELD ; STACKING ; VOLCANO ; SYSTEM |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/249138 |
专题 | 气候变化 |
作者单位 | 1.Univ Sci & Technol China, Sch Earth & Space Sci, Lab Seismol & Phys Earths Interior, Hefei, Peoples R China; 2.Univ Sci & Technol China, Mengcheng Natl Geophys Observ, Hefei, Peoples R China; 3.Univ Sci & Technol China, CAS Ctr Excellence Comparat Planetol, Hefei, Peoples R China; 4.Univ Calgary, Dept Geosci, Calgary, AB, Canada |
推荐引用方式 GB/T 7714 | Chen, Yukuan,Zhang, Haijiang,Eaton, David W.. Real-Time Earthquake Location Based on the Kalman Filter Formulation[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(11). |
APA | Chen, Yukuan,Zhang, Haijiang,&Eaton, David W..(2020).Real-Time Earthquake Location Based on the Kalman Filter Formulation.GEOPHYSICAL RESEARCH LETTERS,47(11). |
MLA | Chen, Yukuan,et al."Real-Time Earthquake Location Based on the Kalman Filter Formulation".GEOPHYSICAL RESEARCH LETTERS 47.11(2020). |
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