Harm to minors, violence or threats, harassment or privacy invasion, impersonation or misrepresentation, fraud or phishing, show more. Are you sure you want to delete this answer? The San Andreas fault is an L shaped transform fault which means the horizontal part of the L is slipping past one another - not towards or apart. The small horizontal part of the L is a lock and actually is squishing together, building mountains east of LA, but that's aside from the main story. The western side Pacific plate of the fault is moving northwest and rubbing against the eastern side N.