No abstract

The amount of coseismic deformation and its distribution of the Wenchuan earthquake provide important scientific bases for revealing the mechanisms of earthquake preparation and characterizing the rupture propagation of the Wenchuan earthquake. The previous studies have indicated that the earthquake ruptured the middle-to-north segment of the Longmenshan central fault and the middle segment of the Longmenshan range-front fault, which are characterized by two surface rupture zones of 240 km and 90 km in length, respectively. Based on the pre-earthquake information and photos of landforms and buildings obtained through geologic and geomorphic survey of the area around Shaba Village of Beichuan County, Sichuan Province and the extensive interview with local villagers, we measured the displacements of the major terrain features and the dislocated buildings by total station instruments and differential GPS and obtained the maximum vertical displacement of 9±0.5 m and right-lateral displacement of 2±0.5 m around the Zou's house in Shaba Village. Though the near-surface deformation exhibits a normal faulting around Shaba Village, the dynamic environment has not changed on the whole. The NW wall of the fault uplifted but without gravity gliding as normally occurring on the hanging wall of a normal fault, which proves that the 9±0.5 m displacement should be the maximum coseismic vertical displacement of the May 12, 2008 Ms 8.0 Wenchuan earthquake. Wenchuan earthquake, Shaba Village in Beichuan County, maximum coseismic displacement, deformation pattern Citation: Ran Y K, Shi X, Wang H, et al. The maximum coseismic vertical surface displacement and surface deformation pattern accompanying the Ms 8.0 Wenchuan earthquake.The coseismic deformation amount and its distribution will provide significant scientific bases for understanding the dynamics and kinematics of the eastern border of Tibetan Plateau, revealing the mechanism of earthquake preparation and rupture propagation of the Wenchuan earthquake, and planning for post-earthquake reconstruction. Extensive investigation and study were conducted after the Wenchuan earthquake on the coseismic deformation amounts and their distribution by geo-scientists from various aspects, e.g. ground surface survey over about 1000 observation sites in particular, and abundant observation data were achieved [1-15] (http:// www.csi.ac.cn/sichuan/henyuntai.pdf).The main knowledge about the earthquake includes: two surface rupture zones accompanying the Wenchuan earthquake were generated along the central to north segment of the NE-trending central Longmenshan fault and the middle segment of the range-front fault of Longmenshan, respectively, of which, the master surface rupture zone along the central fault is about 240 km long, and its northmost part departs from the central fault and extends along a NE-trending sub-fault between the central fault and the Qingchuan fault. The surface rupture zone along the range-front fault of the Longmen Mountain is about 90 km

The results suggested that the inflammatory cytokines, complement system and VEGF may have a function in the development of the brain edema and neuron injury followed ICH.

No abstract

No abstract