Fluid-induced aseismic fault slip outpaces pore-fluid migration

Slip outraces the fluids Earthquakes generated from fluid injections sometimes appear to occur much faster than would be expected from the speed of fluid migration. Bhattacharya and Viesca used observations from a controlled fluid injection to develop a model to understand the behavior of fluids and aseismic slip. They found that the aseismic slip outpaced the fluid migration, allowing for earthquake triggering to happen much faster and farther...