Characteristics of seismic activity before the MS8.0 Wenchuan earthquake

The characteristics of post-seismic surface deformation of the Wenchuan MS8.0 earthquake from InSAR

Using the D-InSAR technology, we have analyzed the Japanese satellite ALOS/PALSAR data after the 2008 Wenchuan earthquake and obtained four strips of ground deformation spanning about one year, which cover the Yingxiu town, Wenchuan, Shifang, Maoxian county, Beichuan, Pingwu and Qingchuan county in Sichuan Province. Precise interferometric baseline is estimated using ground control points of kn...

Slip model of the 2008 Mw 7.9 Wenchuan (China) earthquake derived from co-seismic GPS data

Near-field co-seismic GPS data were used to derive the slip distribution of the 12 May 2008 Wenchuan earthquake. Based on field measurements and geological observations, the earthquake is represented by ruptures on the Beichuan fault and a neighboring fault from Pengxian to Guanxian, both dipping with a decreasing angle with depth. Using a layered elastic crust model, we obtained a slip model t...

Distribution of seismic speed changes associated with the 12 May 2008 Mw 7 . 9 Wenchuan earthquake

We used continuous recordings in Sichuan, China to track the temporal change in elastic properties of the medium, namely the seismic speed, at a regional scale in a 2 year period which includes the great Wenchuan Mw 7.9 earthquake. The data are recorded by a temporary network of 156 broad-band seismographs, in a 200km × 200km region that covers the southern 2/3 of the fault system activated dur...

Tectonic Background of the Wenchuan Earthquake

PALSAR SAR Interferometry for co-seismic deformation monitoring of Wenchuan Earthquake

Satellite differential interferometric synthetic aperture radar (DInSAR) has already demonstrated its potential to map co-, postand inter-seismic deformation since its successful application to the 1992 Landers Earthquake. The Ms 8.0 Wenchuan Earthquake, which occurred on 12 May 2008, was the strongest earthquake to strike China since the 1976 Tangshan earthquake. The devastation of the quake w...