Seasonal Hydrological Stresses on California Faults (VIDEO)
Caption
Seasonal stress changes from hydrological loading resolved on the regional fault geometry as a monthly time-series from 2006 through 2014. The elastic flexing of the crust is the result of water and snow accumulating during the wet winter months and loading the surface. Snow melt and runoff redistributed the surface waters throughout the year and decrease the load during the summer months. The fault map shows the heterogeneous distribution of stresses, which are dependent on the fault orientation, distance from the load, and peak at different times of the year.
Credit
Image produced by Christopher Johnson, Berkeley Seismological Laboratory, UC Berkeley
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