The objective of the present study was to better locate the trace of the fault, in particular to determine whether or not it turns west in Villa Park. The Elsinore fault is certainly multi-stranded, but here there has been sustained seismicity west of the fault zone and west of the southern end of the Whittier fault. Tuesday’s quake was probably caused by a rupture about nine miles below ground and five miles from Diamond Bar, in the area of the Peralta, Whittier and Chino faults. Two tree stumps radiocarbon dated at 3,500 years BP (Fife and Bryant, 1983), have been displaced 15 m. in the lower plate of the fault. Post was not sent - check your email addresses! The Peralta Hills fault is an east-west a "blind thrust” except where it surfaces as a low angle thrust in Anaheim Hills. Peralta Hills Fault Las Cienegas Fault Eagle Rock Fault Long Beach Huntington Beach Newport Beach Laguna Beach Dana Point Santa Ana Mission Viejo Anaheim Pomona Palmdale Los Angeles Santa Monica Torrance Inglewood Baldwin Park Oxnard Ventura Thousand Oaks Santa Barbara Santa Catalina Island Malibu Santa Cruz Island Santa Barbara Island Pasadena Northridge Simi Valley Monterey Park … Elevation: 1,158 feet (353 meters)
When the California Geological Survey contracted with the U.S. Geological Survey to digitize their Geological/Landslide Hazard Map of the Orange Quad (Tan, 1995) the Survey “moved” the Peralta Hills fault trace “around” Reservoir 1-A, a 5 million gallon semi-buried hillside steel tank and apparently through or adjacent to a second buried hillside 3.500 gallon steel tank . Answer. Anyone who is interested in visiting Peralta Hills can print the free topographic map and street map using the link above. separation fault is predominantly an inactive, left-lateral, strike-slip fault that is not responsible for the uplift of the East Coyote Hills. Theory and Practice: Engineering Geology in the Cordillera (Posters), T10. *The size of the earthquake epicenter symbol reflects th em ag ni ud of s rc q k v . Woman walking on a San Bernardino street struck, killed by vehicle that fled, 2 floors of Riverside City Hall flooded and damaged after pipe breaks, Trump backers converge on vote centers in Michigan, Arizona, Man who started Jurupa Valley brush fire at end of pursuit is sentenced to more than 7 years in prison, Early voting meant short lines for most in Inland Empire — but a few waited hours, Inland Valley Daily Bulletin: Share your news. This fault is featured on the following maps: 0 1 2. Andreas Fault, the Peralta Hills Fault and the Whittier-Elsinore Fault. The fault passes through portions of the Edison Serrano Substation and a key transmission tower atop the upper plate and will likely sustain damage during a major earthquake. On Tuesday, residents in West Covina reported feeling the earthquake just as strongly as people just a few miles from the epicenter, probably because the soil there is deep. Answer.
Peralta Hills is displayed on the Orange USGS quad topo map.
To characterize the geometry of the blind fault responsible for folding, we employ dislocation modeling. The Peralta Fault runs along the surface in Anaheim Hills but dives down to the north and west, according to Don Fife, a geologist who published some of the original research on the fault. If you have visited Peralta Hills before, please tell us about it with a comment below. The fault trace forms a perfect diameter through the middle of the 200-foot diameter tank with differential settlement along the contact with Holocene gravels and Miocene siliceous shale. Fault Name Index El Modeno and Peralta Hills Faults El Modeno. The fault passes through a gas station and Eisenhower Lake above commercial and residential structures.
In an area known for the half-dozen major faults that cut through the Earth’s crust at varying degrees and angles, the Peralta Fault is one of the smaller fissures, capable of producing a magnitude-6.5 earthquake, according to experts. Peralta Hills is in the Ranges category for Orange County in the state of California. Type of Fault: reverse Length: about 10 km Nearest Communities: Anaheim, Orange Most Recent Surface Rupture: Quaternary . Peralta Hills Fault (see El Modeno and Peralta Hills Faults) Pine Mountain Fault.
USGS Topo Map Quad: Orange • Related Story: 4 major faults ring proposed NFL stadium Last week’s earthquake, which rattled nerves as well as the region, likely originated near the intersection of two major faults … Type of Fault: reverse Length: about 10 km Most Recent Surface Rupture: Late Quaternary Other Notes: North-dipping.
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