Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL076118 |
Real-Time Detection of Rupture Development: Earthquake Early Warning Using P Waves From Growing Ruptures | |
Kodera, Yuki | |
2018-01-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:1页码:156-165 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | Large earthquakes with long rupture durations emit P wave energy throughout the rupture period. Incorporating late-onset P waves into earthquake early warning (EEW) algorithms could contribute to robust predictions of strong ground motion. Here I describe a technique to detect in real time P waves from growing ruptures to improve the timeliness of an EEW algorithm based on seismic wavefield estimation. The proposed P wave detector, which employs a simple polarization analysis, successfully detected P waves from strong motion generation areas of the 2011 M-w 9.0 Tohoku-oki earthquake rupture. An analysis using 23 large (M >= 7) events from Japan confirmed that seismic intensity predictions based on the P wave detector significantly increased lead times without appreciably decreasing the prediction accuracy. P waves from growing ruptures, being one of the fastest carriers of information on ongoing rupture development, have the potential to improve the performance of EEW systems. |
英文关键词 | earthquake early warning earthquake rupture detection P wave detection earthquake source physics on-site ground motion prediction PLUM method |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423431800018 |
WOS关键词 | GROUND-MOTION ; SOURCE MODEL ; PACIFIC COAST ; SYSTEM ; GENERATION ; PERFORMANCE ; PREDICTION ; INITIATION ; ALGORITHM ; PICKING |
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/28059 |
专题 | 气候变化 |
作者单位 | Japan Meteorol Agcy, Meteorol Res Inst, Tsukuba, Ibaraki, Japan |
推荐引用方式 GB/T 7714 | Kodera, Yuki. Real-Time Detection of Rupture Development: Earthquake Early Warning Using P Waves From Growing Ruptures[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(1):156-165. |
APA | Kodera, Yuki.(2018).Real-Time Detection of Rupture Development: Earthquake Early Warning Using P Waves From Growing Ruptures.GEOPHYSICAL RESEARCH LETTERS,45(1),156-165. |
MLA | Kodera, Yuki."Real-Time Detection of Rupture Development: Earthquake Early Warning Using P Waves From Growing Ruptures".GEOPHYSICAL RESEARCH LETTERS 45.1(2018):156-165. |
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