【摘要】 应用广东数字地震台网的数字化地震资料 ,经过预处理 ,获得每次小地震在观测点处的峰值加速度、峰值速度和峰值位移 ,再利用适当的衰减模式 ,将其换算成震源处的值。最后利用它们与构造环境剪应力场的关系 ,计算出广东地区的构造环境剪应力场。结果表明 ,广东地区的总体剪应力值较低 ,未来发生中强地震的可能性不大更多还原

【Abstract】 In this paper, peaks of acceleration, velocity and displacement at observation point are gotten based on the data of Guangdong Digital Telemetry Seismograph Network, and then they are transformed to the values at the focal through fitted attenuation model for seismic wave. And then the tectonic environment shear stress field in Guangdong area calculated by the relations between these values and shear field. The results show that the tectonic environment shear stress field in Guangdong area is low on the whole, so the possibility of occurring moderately strong earthquake is small.更多还原