摘要
本文用我台短周期DD-1地震仪所记录1993年5月25日南美6.6级极远震记录图进行震相的比较与识别。
The Short - cycle earthguake geophone at our station was able to record an extremely distant earthguake in South Americaon 25 May 1993, measured 6.6 on Richter Scale, which demonstrates the short - cycle earthguake chart record can be used to recognise and compare earthguake phenomenon.