会昌地震台数字与模拟地震波形和震级的对比初探

通过会昌台数字与模拟地震记录到的多个地震事件进行对比分析，认为前者在记录带宽、获取更多的地震动物理量、记录波形能力及可操作性等方面具有显著的优势，数字观测完全可以取代模拟观测；对两种记录计算的地震震级进行了对比与统计分析，发现数字记录近震的震级比远震的偏差要大，远震震级可直接与全国地震目录接轨。

Primary comparison on the shape and magnitude of seismic waveform between digital and analogue records of Huichang Seismic Station

According to the comparison and analysis of many earthquake events of digital records and analogue records of Huichang seismic station, it was realized that the former has obvious advantage of boarder bandwidth, more earthquake information, better seismic waveform and more convenient for operation. The analogue recording form should be instead of the digital on totally. Whit statistical comparison of the magnitude determined with two forms, it was believed that the magnitude determined with digital record is larger than that of the analogues in near earthquakes, and the magnitude in far earthquakes are fitted in the seismic magnitude standard of China.