地震研究

青海地区地震目录最小完整性震级研究^*

王培玲,胡玉

(青海省地震局,青海西宁 810001)

关键词：地震目录; 最小完整性震级; 青海地区

Study on Minimum Completed Magnitude of Earthquake Catalogue in Qinghai Region

WANG Pei-ling,HU Yu

(Earthquake Administration of Qinghai Province,Xining 810001,Qinghai,China)

Keywords：earthquake catalogue; minimum completed magnitude; Qinghai region

备注

收稿日期:2014-08-30

摘要

全文

图/表

参考文献

利用震级—序号法、多种方法定量分析法和G-R关系等方法,计算研究了不同时间段内青海地区中小地震目录的最小完整性震级,并给出了青海地区及其他研究区域内不同时间段地震目录的最小完整性震级。

The minimum completed magnitudes of the catalogue of moderate and small earthquakes in different periods in Qinghai region are calculated and studied by the magnitude and the related order method,quantitative analyze method in multi-method and the G-R relation method,and the minimum completed magnitudes are determined in different periods in Qinghai and other study regions.

引言
1 青海省地震监测历史
2 地震目录最小完整性震级分析
3 讨论与结论

图1 2007年前青海省模拟地震观测台站分布图<br/>Fig.1 Distribution of analogue seismic observation stations in Qinghai Province before 2007

图1 2007年前青海省模拟地震观测台站分布图
Fig.1 Distribution of analogue seismic observation stations in Qinghai Province before 2007

图2 2007年后青海省数字地震观测台站分布图<br/>Fig.2 Distribution of digital seismic observation stations in Qinghai Province after 2007

图2 2007年后青海省数字地震观测台站分布图
Fig.2 Distribution of digital seismic observation stations in Qinghai Province after 2007

图3 1970 年以来青海地区地震事件震级—序号图<br/>Fig.3 Magnitudes and related order number diagram of earthquakes in Qinghai region since 1970

图3 1970 年以来青海地区地震事件震级—序号图
Fig.3 Magnitudes and related order number diagram of earthquakes in Qinghai region since 1970

图4 青海地区最小完整性震级MC时序变化曲线(多方法)<br/>Fig.4 Temporal variation curve of the minimum completed magnitudes(MC)in Qinghai region(multi-methods)

图4 青海地区最小完整性震级MC时序变化曲线(多方法)
Fig.4 Temporal variation curve of the minimum completed magnitudes(MC)in Qinghai region(multi-methods)

图5 1970～2013年青海地区小震目录G-R关系拟合曲线<br/>Fig.5 The fitted curve of G-R relation of small earthquakes catalogue in Qinghai region from 1970 to 2013

图5 1970～2013年青海地区小震目录G-R关系拟合曲线
Fig.5 The fitted curve of G-R relation of small earthquakes catalogue in Qinghai region from 1970 to 2013

图6 1970～2013年青海地区小震目录不同最小完整性震级相关系数变化曲线<br/>Fig.6 Correlation coefficent variation curve of different minimum completed magnitudes of small earthquake catalog in Qinghai region from 1970 to 2013

图6 1970～2013年青海地区小震目录不同最小完整性震级相关系数变化曲线
Fig.6 Correlation coefficent variation curve of different minimum completed magnitudes of small earthquake catalog in Qinghai region from 1970 to 2013

图7 2000～2013年青海地区小震目录G-R关系拟合曲线<br/>Fig.7 The fitted curve of G-R relation of small earthquakes in Qinghai region from 2000 to 2013

图7 2000～2013年青海地区小震目录G-R关系拟合曲线
Fig.7 The fitted curve of G-R relation of small earthquakes in Qinghai region from 2000 to 2013

表1 不同时间段、不同地区地震目录最小完整性震级<br/>Tab.1 Minimum completed magnitude of earthquake catalogue in different time at different area

表1 不同时间段、不同地区地震目录最小完整性震级
Tab.1 Minimum completed magnitude of earthquake catalogue in different time at different area

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