globalchange  > 气候减缓与适应
DOI: 10.1002/2013GL058580
论文题名:
A global approach to provide magnitude estimates for earthquake early warning alerts
作者: Kuyuk H.S.; Allen R.M.
刊名: Geophysical Research Letters
ISSN: 0094-8284
EISSN: 1944-8015
出版年: 2013
卷: 40, 期:24
起始页码: 6329
结束页码: 6333
语种: 英语
英文关键词: earthquake early warning ; magnitude estimation ; P wave amplitude ; P wave frequency
Scopus关键词: Displacement amplitudes ; Earthquake alarm system ; Earthquake early warning ; Earthquake early warning systems ; Magnitude estimation ; P waves ; Predominant period ; Vertical component ; Alarm systems ; Estimation ; Frequency estimation ; Seismic waves ; Earthquakes ; algorithm ; amplitude ; calibration ; early warning system ; earthquake magnitude ; earthquake prediction ; estimation method ; global perspective ; P-wave ; real time ; seismic zone ; California ; Japan ; United States
英文摘要: We examine five different methods to estimate an earthquake's magnitude using only P wave data for use in earthquake early warning systems. We test two input parameters: the maximum predominant period of the P wave (τp max) and the displacement amplitude of the P wave's vertical component (Pd). We apply our algorithms to 174 earthquakes 3.0 < M < 8.0 from California and Japan that have also been used in previous calibration studies. We also apply them to 1992 0.2 < M < 5.7 earthquakes that were processed by the real-time Earthquake Alarm Systems in California. We find that τp max does not scale with magnitude for small earthquakes (M < 3) and is less accurate for large-magnitude earthquakes than using Pd alone. We derive a global scaling relation between Pd and magnitude and conclude that this global relationship provides the most accurate and robust magnitude estimate. This relationship could be applied in earthquake source zones around the world. ©2013. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84892769737&doi=10.1002%2f2013GL058580&partnerID=40&md5=bf3815fb9c0593d61d5cd9acb820ceef
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5548
Appears in Collections:气候减缓与适应

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作者单位: Seismological Laboratory, University of California, Berkeley, CA, United States

Recommended Citation:
Kuyuk H.S.,Allen R.M.. A global approach to provide magnitude estimates for earthquake early warning alerts[J]. Geophysical Research Letters,2013-01-01,40(24).
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