Originally posted by Ack-Ack
The San Andreas Fault is a right-lateral strike-slip fault and the part of California west of the fault line will not slip into the Pacific and become an island. The part west of the fault travels north when the fault slips, so in about few dozen million years or so, San Diego will be in the Yukon, not in the Pacific Ocean.
Here's a nice color picture that makes it easy to understand.
ack-ack
Just think, in 20 million years we'll deprive canada of an entire coast line.