The San Andreas Fault system is similarly complex as it moves through the San Gorgonio Pass , with associated oblique/reverse faults that are actively uplifting San Gorgonio Mountain , the tallest peak in southern California . The 1986 North Palm Springs earthquake occurred to the west of the 1948 shock , and produced of surface rupture on the Garnet Hill Fault or the Coachella strand of the Banning Fault . Together , these are the only historical shocks to occur on the portion of the San Andreas Fault System that lies south of the Cajon Pass
1986 North Palm Springs earthquake
1986 North Palm Springs earthquake
1948 Desert Hot Springs earthquake