地震研究

地震烈度速报与预警台站选址相关问题探讨^*

何少林^1,2

(1.中国地震台网中心,北京 100045; 2.甘肃省地震局,甘肃兰州 730000)

Discussion on the Related Problems of Seismic Intensity Rapid Reporting and Earthquake Early Warning Station Location

HE Shaolin^1,2

(1.China Earthquake Networks Center,Beijing 100045,China)(2.Earthquake Administration of Gansu Province,Lanzhou 730000,Gansu,China)

Keywords：seismic intensity rapid reporting; earthquake early warning; station location

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参考文献

对地震烈度速报与预警台站选址时涉及到的台站布局、台站选址与台址测试要点、台址环境地噪声要求等相关问题进行了讨论,提出了供参考的具体建议,可作为地震烈度速报与预警台站建设规范的补充材料,供大家在开展相关工作时参考。

In this paper,the station distribution problem of seismic intensity rapid reporting and early warning station involves station location and test points,issues related to site environmental noise requirements is discussed.We put forward the corresponding suggestions,which can be used as supplementary materials of seismic intensity quick reporting and earthquake early warning station construction norms.And the results can also be referred for other related works.

引言
1 台站布局与地震预警
2 台站布局与烈度速报
3 台网台站布局建议
4 台站选址和台址测试
5 台址环境地噪声要求探讨
6 小结

表1 单台预(报)警,不同震源深度时的最小地震预警盲区估计(台站震中距0 km、系统用时4 s)<br/>Tab.1 Minimum earthquake early warning blind zone estimation at different focal depths when a single station is used (station epicenter distance:0 km,system used time:4 s)

表1 单台预(报)警,不同震源深度时的最小地震预警盲区估计(台站震中距0 km、系统用时4 s)
Tab.1 Minimum earthquake early warning blind zone estimation at different focal depths when a single station is used (station epicenter distance:0 km,system used time:4 s)

图1 单台预警时地震预警盲区和震源深度的关系(台站震中距0 km、系统用时4 s)<br/>Fig.1 The relationship between earthquake early warning zone and focal depth when a single station is used(station epicenter distance:0 km,system used time:4 s)

图1 单台预警时地震预警盲区和震源深度的关系(台站震中距0 km、系统用时4 s)
Fig.1 The relationship between earthquake early warning zone and focal depth when a single station is used(station epicenter distance:0 km,system used time:4 s)

表2 单台预警,不同震中距时的预警盲区估计(震源深度10 km,系统用时4.0 s,预警时间0.0 s)<br/>Tab.2 Distance estimation of early warning blind area of different epicenter distance when a single station is used(focal depth: 10 km,system used time:4.0 s,warning time:0.0 s)

表2 单台预警,不同震中距时的预警盲区估计(震源深度10 km,系统用时4.0 s,预警时间0.0 s)
Tab.2 Distance estimation of early warning blind area of different epicenter distance when a single station is used(focal depth: 10 km,system used time:4.0 s,warning time:0.0 s)

图2 单台预警时震中距和地震预警盲区的关系(震源深度10 km、系统用时4 s,预警时间0 s)<br/>Fig.2 Relationship between the epicenter distance and the earthquake early warning blind area when a single station is warning(focal depth:10 km,system used time:4.0 s,warning time:0.0 s)

图2 单台预警时震中距和地震预警盲区的关系(震源深度10 km、系统用时4 s,预警时间0 s)
Fig.2 Relationship between the epicenter distance and the earthquake early warning blind area when a single station is warning(focal depth:10 km,system used time:4.0 s,warning time:0.0 s)

表3 单台预警,不同震中距时最大的预警时间估计(震源深度10 km)<br/>Tab.3 Maximum time estimation of the different epicenter distance when a single station is used(focal depth:10 km)

表3 单台预警,不同震中距时最大的预警时间估计(震源深度10 km)
Tab.3 Maximum time estimation of the different epicenter distance when a single station is used(focal depth:10 km)

图3 单台预警时震中距离与最大预警时间关系(震中距0 km,震源深度10 km、系统用时4 s)<br/>Fig.3 The relationship between the epicenter distance and the maximum early warning time in a single station(epicenter distance:0 km,focal depth:10 km,

图3 单台预警时震中距离与最大预警时间关系(震中距0 km,震源深度10 km、系统用时4 s)
Fig.3 The relationship between the epicenter distance and the maximum early warning time in a single station(epicenter distance:0 km,focal depth:10 km,

表4 2台或3台预警,不同台间距时最小的地震预警盲区估计(震源深度8 km,预警时间0 s)<br/>Tab.4 Different station spacing,the minimum earthquake early warning blind area estimation when 2 or 3 stations are used(focal depth 8 km,warning time 0 s)

表4 2台或3台预警,不同台间距时最小的地震预警盲区估计(震源深度8 km,预警时间0 s)
Tab.4 Different station spacing,the minimum earthquake early warning blind area estimation when 2 or 3 stations are used(focal depth 8 km,warning time 0 s)

图4 3台或2台预警时不同台间距和预警盲区的关系(震源深度8 km,预警时间0 s)<br/>Fig.4 The relationship between different station spacing and early warning blind area hen 2 or 3 stations are used(focal depth 8 km,warning time 0 s)

图4 3台或2台预警时不同台间距和预警盲区的关系(震源深度8 km,预警时间0 s)
Fig.4 The relationship between different station spacing and early warning blind area hen 2 or 3 stations are used(focal depth 8 km,warning time 0 s)