Kumar Pankaj, Sharma Mukat Lal, Jakka Ravi Sankar
Centre of Excellence in Disaster Mitigation & Management, Indian Institute of Technology Roorkee, Roorkee 247667, India.
Department of Earth Sciences, Indian Institute of Technology Roorkee, Roorkee 247667, India.
Sensors (Basel). 2024 May 21;24(11):3272. doi: 10.3390/s24113272.
The increased seismic activity observed in the Himalayas, coupled with the expanding urbanization of the surrounding areas in northern India, poses significant risks to both human lives and property. Developing an earthquake early warning system in the region could help in alleviating these risks, especially benefiting cities and towns in mountainous and foothill regions close to potential earthquake epicenters. To address this concern, the government and the science and engineering community collaborated to establish the Uttarakhand State Earthquake Early Warning System (UEEWS). The government of Uttarakhand successfully launched this full-fledged operational system to the public on 4 August 2021. The UEEWS includes an array of 170 accelerometers installed in the seismogenic areas of the Uttarakhand. Ground motion data from these sensors are transmitted to the central server through the dedicated private telecommunication network 24 hours a day, seven days a week. This system is designed to issue warnings for moderate to high-magnitude earthquakes via a mobile app freely available for smartphone users and by blowing sirens units installed in the buildings earmarked by the government. The UEEWS has successfully issued alerts for light earthquakes that have occurred in the instrumented region and warnings for moderate earthquakes that have triggered in the vicinity of the instrumented area. This paper provides an overview of the design of the UEEWS, details of instrumentation, adaptation of attributes and their relation to earthquake parameters, operational flow of the system, and information about dissemination of warnings to the public.
在喜马拉雅地区观测到的地震活动增加，再加上印度北部周边地区城市化进程的不断扩大，对人类生命和财产都构成了重大风险。在该地区开发地震预警系统有助于减轻这些风险，尤其惠及靠近潜在地震震中的山区和山麓地区的城镇。为解决这一问题，政府与科学和工程界合作建立了北阿坎德邦地震预警系统（UEEWS）。北阿坎德邦政府于2021年8月4日成功向公众推出了这个全面运行的系统。UEEWS包括安装在北阿坎德邦地震活动区的170个加速度计阵列。这些传感器的地面运动数据每周七天、每天24小时通过专用的私人电信网络传输到中央服务器。该系统旨在通过一款供智能手机用户免费使用的移动应用程序，以及在政府指定建筑物中安装的警报器发出中度至高强度地震的警报。UEEWS已成功为仪器监测区域内发生的轻微地震发布了警报，并为仪器监测区域附近触发的中度地震发布了预警。本文概述了UEEWS的设计、仪器详情、属性适配及其与地震参数的关系、系统的运行流程，以及向公众发布警报的信息。
