| 山西断陷盆地地震目录最小完整性震级分析 |
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| 引用本文： | 王霞,宋美琴,李丽.山西断陷盆地地震目录最小完整性震级分析[J].山西地震,2013(3):6-10. |
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| 作者姓名： | 王霞 宋美琴 李丽 |
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| 作者单位： | [1]山西省地震局,山西太原030021 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025 |
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| 基金项目： | 山西省地震局2013年科研项目（SBK-1301）、山西省自然科学基金（2012011029）、山西省科技攻关项目（201003111292、20090311084）和中国地震局星火计划（xhl005,xh13004）联合资助. |
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| 摘 要： | 地震目录的最小完整性震级肼。是地震学中最基础、最重要的研究内容之一，也是表征台网监测能力的关键。以1970年至2012年山西断陷盆地地震目录为基础资料，利用“震级一序号”法、“最大曲率”法（MAXC）、90％和95％的拟合度GFT法，研究了山西断陷盆地地震目录最小完整性震级肘。的时间演化特征。分析结果表明，1970年以来，随着山西测震台网的改造，MC逐步降低，尤其是“十五”数字化台网改造后，山西ML≥0．9地震基本完整，表明对地震的监测能力在逐步提升。
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| 关 键 词： | 地震观测台网 监测能力 山西断陷盆地 最小完整性震级 |
Analysis on Minimum Earthquake Magnitudes of Catalogue Completeness in Shanxi Rift Basins |
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| WANG Xia,SONG Mei-qin,LI Li.Analysis on Minimum Earthquake Magnitudes of Catalogue Completeness in Shanxi Rift Basins[J].Earthquake Research in Shanxi,2013(3):6-10. |
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| Authors: | WANG Xia SONG Mei-qin LI Li |
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| Institution: | 1. Earthquake Administration of Shanxi Province, Taiyuan, Shanxi 030021, China; 2. National Continental Rift Valley Dynamics Observatory of Taiyuan, Taiyuan, Shanxi 030025, China) |
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| Abstract: | The minimum magnitude of catalogue completeness （Mc ） is one of the most fundamental and important parameters for earthquake study, which is the key to reflect the monitoring capability of a seismic network. Based on the 1970 -2012 earthquake catalogue in Shanxi rift basins, we analyzed temporal variation of the minimum earthquake magnitude of completeness for catalogue by using magnitude-order number, maximum curvature （MAXC） and goodness-of-fit test （GFT） methods. The results show that the Mc is gradually going down with the upgrading of seismic network from 1970, especially after the time of ＂10th Five-Year Plan＂, and could reach as low as MLO. 9, which in- dicates that the earthquake monitoring capability in Shanxi has been significantly improved. |
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| Keywords: | Seismic network Monitoring capability Shanxi rift basin Minimum earthquake magnitudes of catalogue completeness |
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