Significant Earthquakes and Faults
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Fault Name Index
Gravel Hills - Harper Fault Zone
Type of Faulting: right-lateral strike-slip
Length: about 50 km (length of zone);
total length of all fault segments is greater than 70 km
Nearby Communities: Barstow, Johannesburg
Most Recent Surface Rupture: Holocene
Slip Rate: 0.9 mm/yr
Interval Between Major Ruptures: 3500 years (?)
Probable Magnitudes: MW 6.5 - 7.2
Other Notes: roughly continuous with the Harper Lake fault
This fault is featured on the following map:
Mojave Fault Map
