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Study on the method for comprehensive discrimination of small earthquakes

沈萍郑治真刘希强滕云田杨选辉

地震学报（英文版）2002，Vol.15Issue(2)：179-186,8.

Study on the method for comprehensive discrimination of small earthquakes

沈萍 ¹郑治真 ²刘希强 ³滕云田 ¹杨选辉⁴

作者信息

1. Institute of Geophysics, China Seismological Bureau, Beijing 100081, China
2. Center for Seismic Data and Information, China Seismological Bureau, Beijing 100045, China
3. Seismological Bureau of Shandong Province, Ji'nan 250014, China
4. Institute of Crustal Dynamics, China Seismological Bureau, Beijing 100085, China
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摘要

Abstract

In the paper, we apply the theory of modern digital signal processing to analysis 3-component digital seismic data recorded in Datong area of Shanxi Province by digital seismographs developed by the Institute of Geophysics, CSB in November 1999 and study the auto-discrimination of the recorded digital seismic signals. The result shows that the method for comprehensive discrimination in connection with ratios between average values of long-time and shorttime signals, spectral analysis, and wavelet analysis can be used to auto-discrimination of seismic signals through alternate man-computer processing. Many ML>2.0 earthquakes were discriminated better.

关键词

digital seismic record/spectral analysis/wavelet/comprehensive discrimination

Key words

digital seismic record/spectral analysis/wavelet/comprehensive discrimination

分类

天文与地球科学

引用本文复制引用

沈萍,郑治真,刘希强,滕云田,杨选辉..Study on the method for comprehensive discrimination of small earthquakes[J].地震学报（英文版）,2002,15(2):179-186,8.

基金项目

State natural Science foundation of China. （）

地震学报（英文版）

ISSN：1000-9116

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