Evidence of Fault Immaturity from Shallow Slip
On 8 August 2017, an Mw6.5 earthquake shook the scenic Jiuzhaigou County in Sichuan, China. Yuexin Li (EPS graduate student), Roland Bürgmann (EPS Professor), and Bin Zhao (EPS postdoc) studied the co- and postseismic deformation caused by the earthquake using InSAR and GPS. The slip model indicates a large shallow slip deficit with ~1.2m peak slip at ~5km depth. The shallow slip deficit and lack of afterslip suggest shallow distributed failure in young strike-slip faults. Click here for their paper, published in the Bulletin of the Seismological Society of America.