Using the small earthquake records from March 1988 to March 1991 from seismic network that was established jointly by China and Japan, source spectra and source parameters of small lo-cal earthquakes in Xi'an and its surrounding region are calculated and the relations between the source parameters and magnitude ML are analysed.
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丁韫玉,王洪体,田小平.西安及周围地区小地震的震源参数[J].地震工程学报,1999,21(2):123-129. DING Yun-yu, WANG Hong-ti, TIAN Xiao-ping. SOURCE PARAMETERS OF SMALL EARTHQUAKES IN XI'AN AND ITS SURROUNDING REGION[J]. China Earthquake Engineering Journal,1999,21(2):123-129.