Earthquake Information
Fault Name Index
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Lockhart and North Lockhart Faults
TYPE OF FAULT: right-lateral strike-slip
LENGTH: 70 km (main trace); North Lockhart fault is 10 km long
NEAREST COMMUNITIES: Lockhart, Lenwood, Barstow
MOST RECENT RUPTURE: Holocene, near its center; Late Quaternary, northwest of center; Quaternary, southeast of center. The latest North Lockhart fault rupture is Late Quaternary in age.
SLIP RATE: about 0.8 mm/yr
INTERVAL BETWEEN MAJOR RUPTURES: 3000 - 5000 years (?)
PROBABLE MAGNITUDES: MW6.5 - 7.4
OTHER NOTES: Forms an essentially continuous fault system (150 km long) with the Lenwood fault. No evidence exists that the Lenwood-Lockhart system has ever ruptured together, but such an event might be possible.
South Lockhart Fault
TYPE OF FAULT: right-lateral strike-slip with some vertical slip
LENGTH: 35 km
NEAREST COMMUNITIES: Kramer Junction, Lockhart
MOST RECENT RUPTURE: Holocene along most of its length
SLIP RATE: about 0.8 mm/yr
INTERVAL BETWEEN MAJOR RUPTURES: 3000 - 5000 years (?)
PROBABLE MAGNITUDES: MW6.0 - 7.0
OTHER NOTES: May form a roughly continuous fault system (about 110 km long) with the Helendale fault. Concurrent rupture along these two faults may be possible, but the discontinuous nature of the junction could hinder such an event.
This fault is featured on the following map:
Mojave Fault Map
