期刊
EARTH AND PLANETARY SCIENCE LETTERS
卷 250, 期 1-2, 页码 214-223出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.epsl.2006.07.039
关键词
wavelets; time-frequency analysis; earthquake magnitude determination; P wave amplitude
资金
- Natural Environment Research Council [NE/D521449/1] Funding Source: researchfish
Earthquake early warning systems must save lives. It is of great importance that networked systems of seismometers be equipped with reliable tools to make rapid determinations of earthquake magnitude in the few to tens of seconds before the damaging ground motion occurs. A new fully automated algorithm based on the discrete wavelet transform detects as well as analyzes the incoming first arrival with great accuracy and precision, estimating the final magnitude to within a single unit from the first few seconds of the P wave. (c) 2006 Elsevier B.V. All rights reserved.
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