如果能够把伸缩仪和倾斜仪等地壳运动连续观测数据简单地收集并显示到研究室或出差地,观测数据的处理就会变得容易。另外,现在尚未进行传输的地壳变动连续观测所及增设临时观测点时,如果能够实现简单地传输,将会是非常有用的。基于上述的两点考虑,构思了利用公用电话线把模拟的地壳运动数据收集、传输处理的简单系统。然后,利用研究室的专用计算机把收集到的数据有效处理,制成构筑数据库的系统。为此,在东京大学的大型计算机中心和地震研究所的大型计算机上制成存储器,利用研究室的专用计算机的操作相互传输数据或计算结果,从而构成能够处理观测数据的庞大系统。这样的系统对地震预报研究也是有用的。 If we can simply collect and display continuous observation data of crustal movement such as extensometer and inclinometer to the research room or business trip, the observation data processing will be easy. In addition, it would be useful to be able to achieve simple transmission when continuous observations of the crustal movement that have not yet been transmitted and additional temporary observation points are made. Based on the above two considerations, a simple system for collecting and transmitting simulated crustal movement data using public telephone lines is conceived. Then, the collected data is effectively processed by a dedicated computer in a research laboratory to create a system for constructing a database. To this end, memories are made at mainframe computers at the University of Tokyo and at the Institute of Seismology to transfer data or computational results to each other by means of a dedicated computer in the laboratory, thereby forming a huge system capable of processing the observed data. Such a system is also useful for earthquake prediction studies.