| 影区地震的识别与定位 |
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| 引用本文： | 周建东,;舒优良,;高自明,;马世虎,;闫俊义.影区地震的识别与定位[J].地震地磁观测与研究,2014(1):50-54. |
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| 作者姓名： | 周建东 ;舒优良 ;高自明 ;马世虎 ;闫俊义 |
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| 作者单位： | [1]西安地震台,中国陕西710100; [2]陕西省地震局,中国西安710068 |
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| 摘 要： | 通过分析西安地震台近几年各个方向记录到的影区地震，详细阐述 Lg1、Lg2波的确认方法，运用 Matlab对数据进行分析，给出S波与 Lg1、Lg2波的走时关系式，提高影区地震的分析速度和准确度，为单台大震速报和日常分析提供借鉴经验。
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| 关 键 词： | 影区 S波 Lg Lgl波 Lg2波 Matlab |
Identification and location of earthquakes in shadow zone |
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| Institution: | Zhou Jiandong, Shu Youliang, Gao Ziming, Ma Shihu, Yan Junyi( 1) Xi＇an Seismic Station, Shaanxi Province 710100, China 2) Earthquake Administration of Shaanxi Province, Xi＇an 710068, China) |
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| Abstract: | By analyzing shadow zone earthquakes in all direction recorded in Xi′an Seismic Station in recent year,the confirmation method for Lg1 ,Lg2 waves is elaborated.Using Matlab to analyze data,the traveltime relationship between S wave and Lg1 ,Lg2 wave is obtained,the analysis speed and accuracy for shadow zone seismic analysis speed and accuracy is improved. This result provides referencable experience for quick report of strong earthquake with the data of single station and rountine analysis. |
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| Keywords: | shadow zone S-wave Lg Lgl wave Lg2 wave Matlab |
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