| 影区地震速报定位的改进 |
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| 引用本文： | 苏国君,张海.影区地震速报定位的改进[J].四川地震,1996(4):122-125. |
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| 作者姓名： | 苏国君 张海 |
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| 作者单位： | 四川省地震局地震观测研究所 |
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| 摘 要： | 影区地震的定位是成都遥测台网速报经常遇到的难点问题之一。本文分析了成都遥测台网记录中出现的影区地震的震相Ｓ、Ｌｇ特征，总结出识别它们的方法，并发现增用Ｓ波参加速报定位，常常可提高定位精度，达到规范要求。对于某些影区地震，可用ＳｃＳ震相测定其深度。
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| 关 键 词： | 影区，速报，地震定位，震相分析 |
Improvements on Seismic Location in the Area of Shadow Attenuation |
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| Su Guojing, Zhang Hai.Improvements on Seismic Location in the Area of Shadow Attenuation[J].Earthquake Research in Sichuan,1996(4):122-125. |
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| Authors: | Su Guojing Zhang Hai |
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| Institution: | Seismological Bureau of Sichuan Province |
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| Abstract: | Seismic location in the area of shadow attenuation is one of difficult problems often metin the telemetric seismic netwok of Chengdu. After realizing both seismic phases and characteristies of lg wave in the areas. of shadow attenuation,we find that the location method of introducing seismic phase of S wave can satisty the accuracy that the urlc requires. |
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| Keywords: | shadow attenuation earthquake bulletin |
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