| Comparison between earthquake magnitudes determined by China seismograph network and US seismograph network （Ⅱ）： Surface wave magnitude |
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| 引用本文： | 刘瑞丰 陈运泰 Peter Bormann 任枭 侯建民 邹立晔 杨辉.Comparison between earthquake magnitudes determined by China seismograph network and US seismograph network （Ⅱ）： Surface wave magnitude[J].地震学报(英文版),2006,19(1):1-7. |
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| 作者姓名： | 刘瑞丰 陈运泰 Peter Bormann 任枭 侯建民 邹立晔 杨辉 |
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| 作者单位： | [1]Institute of Geophysics, China Earthquake Administration, Beijing 100081, China [2]GeoForschungsZentrum, D-14478 Potsdam, Germany |
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| 基金项目： | Project ＂Seismic Data Share＂ from China Ministry of Science and Technology.Contrlbution No. 06FE3004, Institute of Geophysics, China Earthquake Administration. |
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| 摘 要： | By using orthogonal regression method, a systematic comparison is made between surface wave magnitudes determined by Institute of Geophysics of China Earthquake Administration （IGCEA） and National Earthquake Information Center of US Geological Survey （USGS/NEIC） on the basis of observation data collected by the two institutions between 1983 and 2004. A formula is obtained which reveals the relationship between surface wave magnitudes determined by China seismograph network and US seismograph network. The result shows that, as different calculation formulae and observational instruments are used, surface wave magnitude determined by IGCEA is generally greater by 0.2 than that determined by NEIC： for M=3.5-4.5 earthquakes, it is greater by 0.3; for M=5.0-6.5 earthquakes, it is greater by 0.2; and for M≥7.0 earthquakes, it is greater by no more than 0.1.
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| 文章编号： | 1000-9116（2006）01-0001-07 |
| 收稿时间： | 2005-03-09 |
| 修稿时间： | 2005-07-04 |
Comparison between earthquake magnitudes determined by China seismograph network and US seismograph network (II): Surface wave magnitude |
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| Liu Rui-feng , Chen Yun-tai , Peter Bormann, Ren Xiao , Hou Jian-min , Zou Li-ye and Yang Hui.Comparison between earthquake magnitudes determined by China seismograph network and US seismograph network (II): Surface wave magnitude[J].Acta Seismologica Sinica(English Edition),2006,19(1):1-7. |
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| Authors: | Liu Rui-feng Chen Yun-tai Peter Bormann Ren Xiao Hou Jian-min Zou Li-ye and Yang Hui |
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| Institution: | (1) Institute of Geophysics, China Earthquake Administration, Beijing, 100081, China;(2) GeoForschungsZentrum, D-14478 Potsdam, Germany |
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| Abstract: | By using orthogonal regression method, a systematic comparison is made between surface wave magnitudes determined by Institute
of Geophysics of China Earthquake Administration (IGCEA) and National Earthquake Information Center of US Geological Survey
(USGS/NEIC) on the basis of observation data collected by the two institutions between 1983 and 2004. A formula is obtained
which reveals the relationship between surface wave magnitudes determined by China seismograph network and US seismograph
network. The result shows that, as different calculation formulae and observational instruments are used, surface wave magnitude
determined by IGCEA is generally greater by 0.2 than that determined by NEIC: for M=3.5∼4.5 earthquakes, it is greater by 0.3; for M=5.0∼6.5 earthquakes, it is greater by 0.2; and for M≥7.0 earthquakes, it is greater by no more than 0.1.
Contribution No. 06FE3004, Institute of Geophysics, China Earthquake Administration. |
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| Keywords: | local earthquake magnitude surface wave magnitude body wave magnitude |
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