利用GAMIT/GLOBK软件处理中国构造环境监测网络GPS连续站观测数据,获得GPS连续站观测到的2011-2015年共14次MW6.0以上地震的同震水平位移场,结合震源区构造背景、震源机制解等,对同震位移场的空间分布特征进行分析研究.结果表明,震级越大、震源越浅、震中距越近,GPS连续站观测到的同震位移越显著.对于浅源地震,MW6.0～6.5地震可观测到同震形变的范围在50 km以内,MW6.5～7.0地震的同震形变在100 km以内,MW7.0以上地震可观测到的同震形变则超过200 km.
Research on the Co-seismic Displacement of Earthquake above MW6.0 in China and Its Surrounding Areas from 2011-2015 Based on Continuous GPS Observations
Using high precision data processing software GAMIT/GLOBK,we obtain co-seismic displacement of the 14 earthquakes above MW6.0 from 2011 to 2015,based on the CMONOC GPS continuous stations.Combining the tectonic background and the focal mechanism,we research the spatial distribution characteristic of co-seismic displacement field.The results show that the larger magnitude,the shallower source,the closer epicen-tral distance,the more obvious the co-seismic displacement can be observed by GPS sta-tions.For the shallow source earthquakes,the observable range of co-seismic deformation effects is within 50 km for the MW6.0～6.5 earthquakes,within 100 km for the MW6.5～7.0 earthquakes,and exceeds 200 km for the earthquakes with magnitudes aboveMW7.0.
万方数据
维普
