Exciting news! We're transitioning to the Statewide California Earthquake Center. Our new website is under construction, but we'll continue using this website for SCEC business in the meantime. We're also archiving the Southern Center site to preserve its rich history. A new and improved platform is coming soon!

Wilshire Fault: Earthquakes in Hollywood?

Cheryl Hummon, Cary Schneider, Robert S. Yeats, James F. Dolan, Kerry Sieh, & Gary J. Huftile

Published April 1994, SCEC Contribution #175

The Wilshire fault is a potentially seismogenic, blind thrust fault inferred to underlie and cause the Wilshire arch, a Quaternary fold in the Hollywood area, just west of downtown Los Angeles, California. Two inverse models, based on the Wilshire arch, allow us to estimate the location and slip rate of the Wilshire fault, which may be illuminated by a zone of microearthquakes. A fault-bend fold model indicates a reverse-slip rate of 1.5-1.9 mm/yr, whereas a three-dimensional elastic-dislocation model indicates a right-reverse slip rate of 2.6-3.2 mm/yr. The Wilshire fault is a previously unrecognized seismic hazard directly beneath Hollywood and Beverly Hills, distinct from the faults under the nearby Santa Monica Mountains.

Hummon, C., Schneider, C., Yeats, R. S., Dolan, J. F., Sieh, K., & Huftile, G. J. (1994). Wilshire Fault: Earthquakes in Hollywood?. Geology, 22(4), 291-294. doi: 10.1130/0091-7613(1994)022<0291:WFEIH>2.3.CO;2.