用成都遥测台网记录判定深远震的几个问题

因成都遥测台网使用的记录器不同，通过对１９９６～１９９８年两年多的资料分析，发现采用常规的分析处理方法，有可能将深远震误作浅源震，其结果是震中位置偏差最大可达１５度。鉴于此情况，提出一种新的简易办法，可以改善深远震定位精度。

Several Problems about Determination of Deep and Distant Earthquake in Chengdu Seismic Telemetry Network

The recording instruments in Chengdu Seismic Telemetry Network are different. So when using normal method to determine the earthquake epicenter, using different recording data may result in mistake of determination. Perhaps a deep and distant earthquake is mishandled to a shallow focus earthquake. And sometimes the positioning difference is about 15 degree. We develop a new simple method to deal with this problem. Its deviation is within permitted range.