Fast inversion for the rupture process of the 12 February 2014 Yutian M_W6.9 earthquake: Discussion on the impacts of focal mechanisms on rupture process inversions

The rupture process of the 12 February 2014 Yutian, Xinjiang, M_W6.9 earthquake was fast estimated about 2.2 hours after the earthquake occurrence by inverting teleseismic data and comparatively analyzing various rupture models of different dip angles. The impacts of the focal mechanisms on the rupture model were also discussed. From the final determined model, the fault slip of the 2014 Yutian M_W6.9 earthquake is concentrately distributed but still shows dominant rupture direction toward the SW, which is in good agreement with the spatial distribution of the aftershocks.