【摘要】 于田MS7.3地震后,第一时间收集到震中350 km范围内4个基准站1Hz高频数据,并用TRACK模块进行解算,研究结果发现,①距离震中54 km处的于田基准站同震变化最明显,尤其是东西分量,变化幅度达52.5±11 mm,超过解算精度3倍中误差;②于田基准站东西分量出现变化量值最大的时间在震后1 min内;③北南分量变化不大。更多还原

【Abstract】 After the Yutian earthquake with MS7. 3,the author collected 1 Hz high frequency data of4 reference stations within 350 kilometers around the epicenter in the first time,and calculated the GNSS data with TRACK module. The results showed that( 1) the co-seismic displacement of EW component of Yutian is significant,which is about 54 kilometers from the epicenter; the most obvious change is about 52. 5 ± 11 mm,more than three times the mean-square error of calculating precision.( 2) In Yutian reference station,the biggest variation in EW component appeared 1 minute after the earthquake.( 3) It is not obvious in NS component of Yutian station.更多还原