The mountains in the pictures in the link I showed you are on the Pacific plate, which is moving north-northwest at the rate of around a centimeter a year in comparison to the North American plate. The two faults are up against each other with one going north and one south, instead of one plate slipping under the other. The scenario with the whole state (or any part of it) falling into the ocean is a giant load of shit.
One thing that's funny is watching the rest of the US point and laugh at the earthquakes out here, when there are plenty of fault lines back east capable of causing big earthquakes (New Madrid, anyone?), but without building codes that take seismic activity into consideration.