Evaluation of the operation results of the ultra-fast earthquake reporting system of the Zigong Station Network
-
摘要: 地震超快速报系统能够在地震发生后几秒至几十秒内自动确定地震三要素。2018年12月在自贡数字遥测地震台网中心部署该系统进行试运行。在2019年1月—2020年1月试运行期间，显示了该系统产出的时效性，产出的平均用时，实现了秒级产出。定位误差均在测震台网要求范围内，通过短信方式将信息传递出去，大大提升了自贡市的应急响应能力。Abstract: The ultra-fast earthquake reporting system can automatically determine the three elements of an earthquake within a few seconds to tens of seconds after the earthquake. The system has been deployed in Zigong Digital Telemetry Seismic Network Center for trial operation since December 2018. After analyzing the automatic positioning results from the trial operation of the system from January 2019 to January 2020, it is found that the ultra-fast reporting system improves the time of automatic quick reporting of Zigong earthquake from minute level to second level. The positioning accuracy meets the requirements of earthquake quick reporting, which can meet the needs of Zigong earthquake emergency work. The causes of errors are also analyzed.
-
图 1 自贡数字测震台网台站分布情况
Figure 1. Distribution of stations in Zigong digital seismic network
图 2 自贡数字测震台网接入井研、宜宾、荣昌等台站分布情况
Figure 2. Distribution of Zigong digital seismic network connected to Jingyan, Yibin, Rongchang and other stations
图 4 自贡数字遥测地震台网速报范围
Figure 4. Quick report range of Zigong digital telemetry seismic network
表 1 超快速报尾报与四川省地震局地震观测报告编目结果偏差统计样本
Table 1. Statistical sample of deviation between the final report of ultra-fast report and the cataloging results of seismic observation report of Sichuan Earthquake Agency
序号 超快速报系统触发结果（尾报） 偏差值 省局编目结果 发震时刻 北纬/° 东经/° 微观震中 震级 发震时刻偏差 位置偏差
/km震级
偏差发震时刻 北纬/° 东经/° 震级 年-月-日
时:分:秒年-月-日
时:分:秒001 2019-01-07
19:13:05.029.46 104.46 四川荣县 3.0 0.7 3.5 0 2019-01-07
19:13:05.729.43 104.45 3.0 002 2019-01-15
01:35:49.028.21 105.00 四川兴文 3.5 0.9 15.1 −0.1 2019-01-15
01:35:49.929.58 104.78 3.6 007 2019-02-24
05:38:09.329.50 104.51 四川荣县 4.3 0.2 2.2 −0.1 2019-02-24
05:38:09.529.48 104.51 4.4 008 2019-02-25
08:40:26.329.49 104.51 四川荣县 3.8 −0.7 1.5 −0.4 2019-02-25
08:40:27.029.48 104.52 4.2 009 2019-02-25
13:15:58.629.51 104.50 四川荣县 4.3 0.3 4.4 −0.6 2019-02-25
13:15:58.329.47 104.50 4.9 012 2019-03-08
19:14:30.329.44 104.53 四川威远 3.4 −0.5 1.1 0.2 2019-03-08
19:14:30.829.45 104.53 3.2 019 2019-06-17
22:55:43.428.34 104.91 四川长宁 5.3 2.4 4.9 −0.7 2019-06-17
22:55:41.028.34 104.96 6.0 034 2019-07-04
10:17:59.328.53 104.67 四川珙县 4.8 1.9 18.0 −0.7 2019-07-04
10:17:57.428.40 104.78 5.5 041 2019-09-08
06:42:13.829.58 104.81 四川资中 4.2 1.1 5.3 −1.2 2019-09-08
06:42:12.729.58 104.82 5.4 052 2019-12-18
08:14:05.529.64 104.84 四川资中 4.6 −0.3 2.4 −0.8 2019-12-18
08:14:05.829.62 104.83 5.4 055 2020-01-01
11:01:57.729.05 104.99 四川富顺 4.0 1.4 5.9 −0.2 2020-01-01
11:01:56.329.02 105.01 4.2 … … … … … … … … … … … … … 注：表1中…表示省略部分定位结果及偏差样本 
下载: 导出CSV
表 2 发震时刻偏差值统计
Table 2. Statistics of deviation values at the time of earthquake occurrence
种类
数量发震时刻偏差 种类
数量发震时刻偏差 平均 最大 平均 最大 网内8个 0.61 s 3.6 s 网外50个 1.3 s 3.7 s
下载: 导出CSV
表 3 震中位置偏差值统计
Table 3. Statistics of deviation values in epicenter position
种类
数量震中位置偏差 种类
数量震中位置偏差 平均 最大 平均 最大 网内8个 3.2 km 4.6 km 网外50个 8.6 km 35.6 km
下载: 导出CSV
表 4 震级偏差值统计
Table 4. Statistics of deviation values in magnitude
种类
数量震级偏差 种类
数量震级偏差 平均 最大 平均 最大 网内8个 ±0.2 级 0.6 级 网外50个 ±0.3 级 -1.2 级
下载: 导出CSV
-
[1] 黄文辉,沈玉松,吕作勇,等. 地震超快速报系统试运行结果评估[J]. 华南地震,2016,36(4):1-7 doi: 10.13512/j.hndz.2016.04.001Huang W H,Shen Y S,Lü Z Y,et al. Evaluation the results of the earthquake very fast report system[J]. South China Journal of Seismology,2016,36(4):1-7 doi: 10.13512/j.hndz.2016.04.001 [2] 张红才,金星,李军,等. 地震预警系统研究及应用进展[J]. 地球物理学进展,2013,28(2):706-719 doi: 10.6038/pg20130219Zhang H C,Jin X,Li J,et al. Progress of research and application of earthquake early warning system (EEWs)[J]. Progress in Geophysics,2013,28(2):706-719 doi: 10.6038/pg20130219 [3] 沈玉松,康英,黄文辉,等. 国家地震速报备份系统定位结果评估[J]. 中国地震,2011,27(2):155-164 doi: 10.3969/j.issn.1001-4683.2011.02.005Shen Y S,Kang Y,Huang W H,et al. Evaluation of location results of the backup system for the national earthquake rapid determination[J]. Earthquake Research in China,2011,27(2):155-164 doi: 10.3969/j.issn.1001-4683.2011.02.005 [4] 金星,廖诗荣,陈绯雯. 区域数字地震台网实时速报系统研究[J]. 地震地磁观测与研究,2007,28(1):64-72 doi: 10.3969/j.issn.1003-3246.2007.01.011Jin X,Liao S R,Chen F W. The test running of real-time earthquake information system for province level seismic network[J]. Seismological and Geomagnetic Observation and Research,2007,28(1):64-72 doi: 10.3969/j.issn.1003-3246.2007.01.011 [5] 张天中,武巴特尔,黄媛,等. 近台资料对近震相对定位算法的影响[J]. 地球物理学报,2007,50(4):1123-1130 doi: 10.3321/j.issn:0001-5733.2007.04.019Zhang T Z,Wu B,Huang Y,et al. Effect of the data recorded at nearby stations on earthquake relative location[J]. Chinese Journal of Geophysics,2007,50(4):1123-1130 doi: 10.3321/j.issn:0001-5733.2007.04.019 [6] 杨陈,黄志斌,高景春,等. 中国自动地震速报系统评估及发布策略[J]. 地球物理学进展,2014,29(6):2572-2579 doi: 10.6038/pg20140615Yang C,Huang Z B,Gao J C,et al. Evaluation of China’s auto earthquake information release system and its release strategy[J]. Progress in Geophysics,2014,29(6):2572-2579 doi: 10.6038/pg20140615 [7] 龙峰,韩立波,赵敏. P波自动识别算法及其在四川地震台网中的应用[J]. 四川地震,2016(2):13-17Long F,Han L B,Zhao M. The P-wave auto-detection algorithm and its application to the data from Sichuan seismic network[J]. Earthquake Research in Sichuan,2016(2):13-17 [8] 窦立婷,李冬梅,任力伟,等. 国家地震烈度速报与预警工程山西子项目综述及应用分析[J]. 山西地震,2019(4):52-56 doi: 10.3969/j.issn.1000-6265.2019.04.014Dou L T,Li D M,Ren L W,et al. Summary and application analysis of Shanxi sub-project of national earthquake intensity quick reporting and early warning project[J]. Earthquake Research in Shanxi,2019(4):52-56 doi: 10.3969/j.issn.1000-6265.2019.04.014 [9] 四川省地震局. 四川省测震台网地震观测报告[R/OL]. [2021-09-28]. http://10.5.160.18/uniteDayCatalog/index.actionSichuan Earthquake Agency. Seismic observation report of Sichuan seismic network[R/OL]. [2021-09-28]. http://10.5.160.18/uniteDayCatalog/index.action -
点击查看大图
计量
- 文章访问数: 218
- HTML全文浏览量: 90
- PDF下载量: 26
