Pre-seismic and Co-seismic Deformation of Ms 7.0 Earthquake in Lushan

Based on the UNSS data processing results from the Sichuan area，following conclusions are obtained:①Before the Ms 8.0 earthquake in Wenchuan，there was almost no dextral strike-slip activity distinguished or compressional deformation on the Longmenshan fault zone and nearly 150 km north of it，and was deformation distinguished in the area of 100 kms west of Sichuan Basin-- the Xianshuihe Anninghe Fault.②Between the Ms 8. 0 earthquake in Wenchuan and Ms 7.0 earthquake in Lushan，there was about a 5 mm/a dextral strike-slip activity in the middle and northern sections of the Longmenshan fault zone，with no 3D deformation distinguished in and near the seismic source region. Meanwhile the sinistral deformation increased on the Xianshuihe Anninghe fault and east of the zone.③The co-seismic deformation field of the Lushan earthquake was basically distributed for 10 kilometers around the seismic source region，with an epicenter bounded，on the east side as a dextral deformation，on the west side with a sinistral deformation.④LS05 was about 12 km to the epicenter; the permanent vertical displacement momentum was around 7 cm，with a horizontal thrust momentum of about 4 cm，the horizontal strike-slip was about 5 cm from the station.