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日本科学技术厅国立防灾科学技术中心提出一种新的警报系统的初步设想,它能在大地震发生时迅速测知,并能以比地震波还快的速度发出警报。这个新警报系统以作了预报部署的东海地震为假设条件,用专用线路将设置在骏河湾周围的地震仪群与首都圈连接在一起。再用电子计算机依次处理地震仪的数据,并输出与地震大小相应的信号。据计算,这种警报可在东海地震的地震波到达首都圈的20～30秒以前传到,在这段时间内可以采取防灾措施。
The National Science and Technology Agency for Japan’s National Science and Technology Agency for Disaster Prevention put forward a tentative plan for a new warning system that can quickly detect a large earthquake and alert it faster than a seismic wave. The new warning system uses the East China Sea earthquake as a forecast for the deployment of the seismograph cluster around the Suruga Bay and the metropolitan area using a dedicated line. Then use the computer to process the seismograph data in turn, and output the signal corresponding to the magnitude of the earthquake. It has been calculated that such warnings can reach 20 to 30 seconds before the seismic waves of the East Sea earthquake reach the metropolitan area, and disaster prevention measures can be taken during this period.