全国分区地方性震级量规函数的研究

王丽艳, 刘瑞丰, 杨辉

王丽艳, 刘瑞丰, 杨辉. 2016: 全国分区地方性震级量规函数的研究. 地震学报, 38(5): 693-702.
引用本文: 王丽艳, 刘瑞丰, 杨辉. 2016: 全国分区地方性震级量规函数的研究. 地震学报, 38(5): 693-702.
Wang Liyan, Liu Ruifeng, Yang Hui. 2016: Calibration function of local magnitude for different regions in China. Acta Seismologica Sinica, 38(5): 693-702.
Citation: Wang Liyan, Liu Ruifeng, Yang Hui. 2016: Calibration function of local magnitude for different regions in China. Acta Seismologica Sinica, 38(5): 693-702.

全国分区地方性震级量规函数的研究

基金项目: 

地震行业专项(200708024)和地震局经常性项目(1439021)共同资助

和地震局经常性项目共同资助 1439021

地震行业专项 200708024

详细信息
    通讯作者:

    刘瑞丰: e-mail: liurf@seis.ac.cn

  • 中图分类号: P315.3+2

Calibration function of local magnitude for different regions in China

  • 摘要: 基于1973—2002年全国31个省级地震台网的地震观测资料,通过震级残差统计分析方法计算了单台震级的偏差和标准差,进而得到了东北与华北、华南、西南、青藏和新疆等5个区域的地方性震级量规函数及其使用范围.实际地方性震级测定结果表明,使用新的量规函数较我国目前使用的短周期仪器量规函数所测定的地方性震级的标准差小,这说明使用新的量规函数能够提高地方性震级的测定精度.
    Abstract: The statistical analysis method of the magnitude residuals is used to calculate the deviation and standard deviation of local magnitudes for single station based on the seismic observation data from all the 31 provincial seismological networks of China during 1973—2002. The local magnitude calibration functions are established in Northeast-North China, South China, Southwest China, Qinghai-Xizang and Xinjiang regions, and their usage ranges are defined. The local magnitude determination results in practice show that the standard deviations of local magnitude become smaller by using the new calibration functions than the current ones of short-period instrument, suggesting that the new calibration functions can raise the measurement accuracy of local magnitude.
  • 图  1   1973年1月—2002年12月全国ML≥0.1地震与台站分布图

    Figure  1.   Distribution of ML≥0.1 earthquakes(dots)and seismic stations (triangles)in China from January 1973 to December 2002

    图  2   单台震级偏差ΔMLij随震中距Δ的变化图

    (a)东北与华北地区;(b)华南地区;(c)西南地区;(d)青藏地区;(e)新疆地区 蓝色圆点为单台震级偏差值,红线为震级偏差平滑曲线,绿线为零线

    Figure  2.   Variation of magnitude deviation ΔMLij of single station with epicentral distance Δ

    (a)Northeast-North China;(b)South China;(c)Southwest China;(d)Qinghai-Xizang region;(e)Xinjiang region The blue dots represent the local magnitude deviation of single station,the red curve represents smooth curve of local magnitude deviation,and the green curve represents zero curve

    图  3   5大分区的新量规函数与量规函数R1(Δ)对比图

    (a)东北与华北地区;(b)华南地区;(c)西南地区;(d)青藏地区;(e)新疆地区

    Figure  3.   Comparison of new calibration functions with R1(Δ)

    (a)Northeast-North China;(b)South China;(c)Southwest China;(d)Qinghai-Xizang region;(e)Xinjiang region

    图  4   5大分区的新量规函数与量规函数R1(Δ)计算所得的单台震级偏差统计对比图

    (a)东北与华北地区;(b)华南地区;(c)西南地区;(d)青藏地区;(e)新疆地区

    Figure  4.   The statistical comparisons of local magnitude deviation of single station by new calibration functions with those by R1(Δ)

    (a)Northeast-North China;(b)South China;(c)Southwest China;(d)Qinghai-Xizang region;(e)Xinjiang region

    表  1   1973—2002年全国各省地震观测数据整合统计表

    Table  1   The statistics of the earthquake observation data in all the provinces of China from 1973 to 2002

    台网名称 地震次数台站个数资料组数观测时段
    安徽32085182681976—2002
    福建753455478511989—2002
    甘肃465063135371990—2000
    广东35925039441990—2000
    广西30432774921980—2002
    海南4521722562000—2002
    北京、天津、河北461416388721989—2002
    河南25423164061981—2002
    黑龙江10713625311973—2002
    湖北206553105081980—2002
    湖南3501811321987—2002
    吉林2521525611990—2001
    江苏、上海383133132241982—2002
    江西40077481991—2002
    辽宁203750119521980—2002
    内蒙古东部228023102431990—2002
    内蒙古中西部269726122891990—2002
    宁夏285817117851990—2002
    青海469112163851990—2002
    山东393652246901975—2002
    山西788463214021991—2000
    陕西124421222021990—2002
    重庆、四川1530092374621990—2002
    西藏23632627382001—2002
    新疆723854339261990—2000
    云南、贵州14900235406841990—1999
    浙江250186561988—2002
    注:2000年以前海南的地震观测数据属广东台网.
    下载: 导出CSV

    表  2   新量规函数表

    Table  2   New calibration functions

    Δ/kmR11R12R13R14R15
    0—51.91.82.02.02.0
    102.01.92.02.12.1
    152.22.12.12.22.2
    202.32.22.22.32.3
    252.52.42.42.52.5
    302.72.62.62.62.6
    352.92.82.72.82.8
    402.92.92.82.92.8
    453.03.02.93.02.9
    503.13.13.03.13.0
    553.23.23.13.23.1
    603.33.33.23.23.2
    703.33.33.23.23.2
    753.43.43.33.33.3
    853.33.33.33.43.3
    903.43.43.43.53.4
    1003.43.43.43.53.4
    1103.53.53.53.63.6
    1203.53.53.53.63.6
    1303.63.63.63.73.6
    1403.63.63.63.73.6
    1503.73.73.73.83.7
    1603.73.73.73.73.7
    1703.83.83.83.83.8
    1803.83.73.83.83.8
    1903.93.83.93.93.9
    2003.93.93.93.93.9
    2103.94.03.94.03.9
    2203.94.03.94.04.0
    2304.04.14.04.14.0
    2404.14.14.04.14.0
    2504.14.24.04.14.1
    2604.14.24.14.14.1
    2704.24.24.24.24.2
    2804.24.34.14.14.1
    2904.34.44.24.24.2
    3004.24.44.34.24.3
    3104.34.54.44.34.4
    3204.34.44.44.34.4
    3304.44.54.54.44.4
    3404.44.54.54.44.4
    3504.44.54.54.54.5
    3604.54.64.54.54.5
    3704.54.64.54.44.5
    3804.54.64.64.54.5
    3904.54.64.64.54.5
    4004.64.74.74.54.6
    4204.64.74.74.64.7
    4304.64.74.84.74.7
    4404.64.74.84.754.8
    4504.64.74.84.754.8
    4604.64.74.84.754.8
    4704.74.74.84.84.8
    5004.84.74.84.84.8
    5104.84.84.94.94.9
    5304.84.84.94.94.9
    5404.84.84.94.94.9
    5504.84.84.94.94.9
    5604.94.94.94.94.9
    5704.84.94.94.94.9
    5804.94.94.94.94.9
    6004.94.94.94.94.9
    6105.05.05.05.05.0
    6205.05.05.05.05.0
    6505.15.15.15.15.1
    7005.25.25.25.25.2
    7505.25.25.25.25.2
    8005.25.25.25.25.2
    8505.25.25.25.25.2
    9005.35.35.35.35.3
    10005.35.35.35.35.3
    下载: 导出CSV

    表  3   两种量规函数计算所得的震级标准误差

    Table  3   The magnitude standard deviations calculated by two kinds of calibration functions

    区域S1S2
    东北与华北地区0.250.24
    华南地区0.240.22
    西南地区0.260.25
    青藏地区0.260.25
    新疆地区0.290.28
    下载: 导出CSV
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出版历程
  • 收稿日期:  2015-10-27
  • 修回日期:  2015-12-15
  • 发布日期:  2016-08-31

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