摘要
利用湟源地震台2004年7月至11月数字化地震仪记录到的MB震级66个、MS震级40个与中国地震台网中心测定的MB和MS震级进行了对比分析,利用M网-M台计算出了湟源地震台MB和MS震级的偏差,并从震中距、震源深度及方位等方面分析了产生偏差的原因,进而指出了解决的方法。
Using the digital seismic data recorded at Huangyuan Seismic Station from July to November, 2004, we compare magnitude of earthquake, 66 M_B and 40 M_S with those determined by China Earthquake Networks Center (CENC) and the deviation of magnitude obtained at Huangyuan Seismic Station is calculated. Causation for the deviation is analyzed according to the epicentral distance, depth and azimuth of hypocenter. A correcting method is also proposed.