Abstract The ground kinematic feature is analyzed using 1Hz data recorded by the continuous GPS stations near the epicenter of the 2008 Ms8.0 Wenchuan earthquake.It is demonstrated that the kinematic direction and intension of each station are associated with its distances not only to the epicenter but also to the surface rupture belt.The kinematic complexity of nearfield stations reflects the general features of thrust and strike focal rupture process.At PIXI station, which is the nearest station to the epicenter, the largest kinematic displacements are detected, more than 100cm and 70 cm for EW and NS components, respectively.The GPSderived displacement is consistent with the result obtained by strong motion seismograph.Finally, the maximum kinematic displacements are compared with permanent coseismic ones for all stations.It is very clear that maximum kinematic displacements are larger than permanent coseismic displacements for six stations.There are five stations with maximum kinematic displacements being comparative to permanent coseismic displacements.At Chengdu station, the maximum kinematic displacement is less than its permanent coseismic displacements.
Su Xiaoning,Meng Guojie,Liao Hua et al. GROUND KINEMATIC DEFORMATION CAUSED BY WENCHUAN
EARTHQUAKE USING HIGH RATE GPS EPOCH POSITIONING[J]. jgg, 2013, 33(Supp.1): 11-15.
Su Xiaoning,Meng Guojie,Liao Hua et al. GROUND KINEMATIC DEFORMATION CAUSED BY WENCHUAN
EARTHQUAKE USING HIGH RATE GPS EPOCH POSITIONING[J]. jgg, 2013, 33(Supp.1): 11-15.
