School of Earth and Space Sciences Peking University Beijing 100871 China;
School of Earth and Space Sciences Peking University Beijing 100871 China;
School of Earth and Space Sciences Peking University Beijing 100871 China;
School of Earth and Space Sciences Peking University Beijing 100871 China;
School of Earth and Space Sciences Peking University Beijing 100871 China;
deformation field; thrust fault; Wenchuan earthquake; GPS observations; experimental results;