Hi Brian. I’m very familiar with the formula. However if a rock has been destroyed how can it continue to build stress? The fault continues to move until the rock, the one that survived the collision with the previous rock runs into another.

Could there ever be a point where two rocks are so massive that can’t shear one another so one rock moves downward and the other moves upward until they can slip past one another?

There is a location on the Rodgers Creek fault that has almost no quakes at all. Is this because the fault is locked there, or is it because the area is so smooth that quakes aren’t generated there? Take Care…Don in creepy town