Which internal process leads to earthquakes in places like california?

Plate motion which produces a transfrom fault

Explanation:

Internal processes on earth are driven by the internal heat engine.

The earth lithosphere moves on top of the weak and ductile asthenosphere which lies in the deep subsurface. The lithosphere is broken down into different slabs of plates which moves on the asthenosphere. Most of the significant geologic processes that occurs on earth are attributed to these plate movement.

There are different types of plate movements which produces three major types of plate boundaries which are:

A place like California is close to a transform plate boundary. Transform plate boundaries results where plates moves past one another. This is the cause of the San Andreas fault system which triggers earthquake in California. When plates move past one another, a lot of geologic and tectonic activities results. The most prominient is earthquake activites triggered by rebounding of moving plates.