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DOI | 10.1002/2016GL071672 |
New tau(c) regression relationship derived from all P wave time windows for rapid magnitude estimation | |
Peng, C. Y.1; Yang, J. S.1; Zheng, Y.1; Zhu, X. Y.2; Xu, Z. Q.1; Chen, Y.2 | |
2017-02-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Two issues related to the average period t(c) early-warning parameter are the magnitude saturation effect on large earthquakes and considerable scatter for small earthquakes. To reduce the effect of these two issues on earthquake early-warning systems, we introduce a new tc regression relationship derived from all P wave time windows (PTWs) in high-pass filtered (T = 0.075 Hz) strong-motion data for three damaging moderate-to-large earthquakes. Our results show that this relationship provides a better and more stable magnitude prediction than those derived from 3 s PTW without a saturation effect on large earthquakes with M < 7.5. It is expected that fewer false alerts (those outside the magnitude uncertainty tolerance) would be issued. Additionally, a reduction of the initial PTWs to 1-2 s and evolutionary calculation with an expanding window allow more lead time for small-to-moderate events. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396411100013 |
WOS关键词 | EARLY-WARNING SYSTEM ; EARTHQUAKE MAGNITUDE ; M-W ; FEASIBILITY ; PARAMETERS ; RECORDS ; TAIWAN |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/28571 |
专题 | 气候变化 |
作者单位 | 1.China Earthquake Adm, Inst Geophys, Real Time Seismol Seismol Observat & Interpretat, Beijing, Peoples R China; 2.China Earthquake Adm, Inst Earthquake Sci, Key Lab Earthquake Predict, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Peng, C. Y.,Yang, J. S.,Zheng, Y.,et al. New tau(c) regression relationship derived from all P wave time windows for rapid magnitude estimation[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(4). |
APA | Peng, C. Y.,Yang, J. S.,Zheng, Y.,Zhu, X. Y.,Xu, Z. Q.,&Chen, Y..(2017).New tau(c) regression relationship derived from all P wave time windows for rapid magnitude estimation.GEOPHYSICAL RESEARCH LETTERS,44(4). |
MLA | Peng, C. Y.,et al."New tau(c) regression relationship derived from all P wave time windows for rapid magnitude estimation".GEOPHYSICAL RESEARCH LETTERS 44.4(2017). |
条目包含的文件 | 条目无相关文件。 |
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