Earthquake Information
Chronological Earthquake Index
Landers Earthquake
TYPE OF FAULTING: right-lateral strike-slip
TIME: June 28, 1992 / 4:57:31 am PDT
LOCATION: 34° 13' N, 116° 26' W 6 miles north of Yucca Valley
MAGNITUDE: MW7.3
RUPTURE LENGTH: 85 km (53 miles)
FAULTS RUPTURED: Johnson Valley, Landers, Homestead Valley, Emerson, and Camp Rock; several other faults experienced minor rupture, rupture during large aftershocks, or triggered slip
AVERAGE SLIP: about 3 to 4 meters; maximum slip of 6 meters
DEPTH: 1.1 km
LARGEST AFTERSHOCK: Big Bear earthquake, MS 6.4
View rupture movie
At magnitude 7.3, the Landers earthquake was the largest earthquake to hit Southern California in 40 years. Centered in the Mojave Desert, approximately 120 miles from Los Angeles, the earthquake caused relatively little damage for its size.
The power of the earthquake was illustrated by the length of the ground rupture it left behind. The earthquake ruptured 5 separate faults: Johnson Valley, Landers, Homestead Valley, Emerson, and Camp Rock faults. The total rupture length was ~85km (53 miles), and the faults slipped from 2 meters (~6 ft) to a maximum of 6 meters (~18 ft). Nearby faults also experienced triggered slip and minor surface rupture.
This map shows the topography and some major landmarks of the area around the Landers epicenter, which is shown as a green star with a white outline. The surface rupture caused by the earthquake is shown in red. Major highways are labelled and shown in blue.