Evaluation of the Parameter Determination Capability of Jiangsu Subsystem in the National Earthquake Rapid Reporting System

QIAN Ting; WANG Jun; WEI Mengwan; HE Yicheng; DU Hang; NI Haoqi

doi:10.13409/j.cnki.jdpme.20240222001

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Evaluation of the Parameter Determination Capability of Jiangsu Subsystem in the National Earthquake Rapid Reporting System

更新时间：2024-06-26

- Evaluation of the Parameter Determination Capability of Jiangsu Subsystem in the National Earthquake Rapid Reporting System
- Journal of Disaster Prevention and Mitigation Engineering Vol. 44, Issue 3, Pages: 725-729(2024)
- 作者机构：
  
  江苏省地震局，江苏南京 210014
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.20240222001
  CLC： TU443
- Received：22 February 2024，
  
  Revised：2024-04-30，
  
  Published：25 June 2024
- 稿件说明：
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钱婷,王俊,魏梦婉等.国家地震烈度速报江苏子系统参数测定能力评估[J].防灾减灾工程学报,2024,44(03):725-729.

QIAN Ting,WANG Jun,WEI Mengwan,et al.Evaluation of the Parameter Determination Capability of Jiangsu Subsystem in the National Earthquake Rapid Reporting System[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(03):725-729.
钱婷,王俊,魏梦婉等.国家地震烈度速报江苏子系统参数测定能力评估[J].防灾减灾工程学报,2024,44(03):725-729. DOI： 10.13409/j.cnki.jdpme.20240222001.

QIAN Ting,WANG Jun,WEI Mengwan,et al.Evaluation of the Parameter Determination Capability of Jiangsu Subsystem in the National Earthquake Rapid Reporting System[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(03):725-729. DOI： 10.13409/j.cnki.jdpme.20240222001.

摘要

分析了2023年3月以来江苏地震烈度速报与预警系统震源参数测定的可靠性和精度。研究选取2022年3月1日至2023年12月20日期间江苏地区发生的98条

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≥2.0地震事件，对比了新旧两套系统对同一事件的定位结果。结果显示，震中位置偏差大多数在0.3~12.1 km范围内，大部分误差属于正常范围。两套系统的震级偏差普遍较小，只有少数结果因定位台站的数量、钟差、数据噪声和干扰等因素导致偏差较大。此外，监测能力方面，新系统的监测能力整体提升

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3.21733332

0.5，二维模拟地震定位测试方法显示定位精度也有所提升，整体来看，新系统展现出良好的实效性，能为地震分析和科学研究提供可靠的数据支持。

Abstract

This article analyzes the reliability and accuracy of the seismic intensity rapid reporting and warning system's source parameter determination in Jiangsu since March 2023. The study selected 98 seismic events with

≥2.0 that occurred in the Jiangsu region from March 1

2022

to December 20

2023

and compared the results of the new and old systems for the same events. The results show that the epicenter location deviations are mostly within the range of 0.3-12.1 km

with the majority of errors falling within the normal range. The seismic magnitude deviations of both systems are generally small

with only a few results showing larger deviations due to factors such as the number of locating stations

clock errors

data noise

and interference. Additionally

in terms of monitoring capability

the seismic magnitude monitoring lower limit of the new system decreased overall by

0.5. Two-dimensional simulation earthquake location testing methods showed an improvement in positioning accuracy. Overall

the new system demonstrat

ed good practicality and can provide reliable data support for earthquake analysis and scientific research.

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references

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