2019 Ridgecrest Earthquakes
Ridgequest Earthquake Sequence
The 2019 Ridgecrest earthquake sequence was unc in a few ways. First, it occurred on two orthogonal fault planes, with the hypocenter of a large foreshock on the NE-SW plane and the hypocenter of the mainshock on the NW-SE plane. Second and more interestingly, the Garlock fault to the South the fault planes acted as a barrier, inhibiting slip and aftershocks beyond it. My research addresses the following questions by examining the Coulomb stress change from slip on the faults:
Did the foreshock trigger the mainshock? If so, what is the contribution from either fault planes? Did either or both of the earthquakes increase the stress on the Garlock fault? Are my results consistent with the observed creep on the Garlock fault after the earthquakes?