Abstract Based on seismic phase date recorded by Sichuan digital seismic network, this study analyzes the spatial and temporal variations. In this study, we employ the idea of repeat earthquakes, select seismic active area as generalized repeat earthquakes, and analyze the velocity ratio of the cluster zone to different stations around. The results show that the velocity ratio obviously decreased before the Wenchuan earthquake and increased after the Lushan earthquake. These changes can be observed both north and south of Longmenshan fault. The temporal changes of velocity ratio from 2000 to 2013 show the integrity and difference between Wenchuan MS8.0 and Lushan MS7.0. It seems that it was the same dynamic process, the two large earthquakes occurred in this process.
LI Yan’e,WANG Linying,SONG Meiqing et al. Study of the Seismogenic Process from Wenchuan to the Lushan Earthquake Based on Wave Velocity Ratio Temporal Variation[J]. jgg, 2016, 36(11): 991-997.
LI Yan’e,WANG Linying,SONG Meiqing et al. Study of the Seismogenic Process from Wenchuan to the Lushan Earthquake Based on Wave Velocity Ratio Temporal Variation[J]. jgg, 2016, 36(11): 991-997.