Hi Michael. You may find this interesting. It deals with fluids along the San Andreas fault in the area of Parkfield. Take Care…Don in creepy town

Fault-zoned fluids play an important role in generating earthquakes. High pressure fluid in the fault zone may reduce the frictional strength of the fault. Variations in fluid pressure may affect the timing of earthquakes (Miller, 1996). Data collected at Parkfield allow some of these hypotheses to be tested.

• Fluid At Parkfield