Much of the local geography has been influenced by the Rose Canyon Fault Zone, which is related to the San Andreas System. We can see the exact line of the Country Club arm of this zone at the abrupt bend in the coastline. The Rose Canyon fault runs along I-5, then veers hard west. Land on the south side of the fault has moved westward relative to land on the north side of it. The land has stacked up at the bend in the fault to create Mount Soledad, and Point La Jolla has moved westward, jutting out significantly from the beaches of La Jolla Shores. Geologists warn that the Rose Canyon Fault is capable of producing a destructive 7.0 earthquake, but the probability of it occurring the next couple of hundred years is low.
