60a Measurements of so … The complete fault zone, including the Rodgers Creek fault, is divided by seismologists into three segments – Rodgers Creek, Northern Hayward, and Southern Hayward. ... San Gregorio Fault (SGF) Southern San Gregorio (SGS) 7.0. Using Google Maps, go to 37°30’13.9” 122°29’47.4” (37.503861, -122.496500). 1b,c), but not its exact sea-floor trace.Zones of high acoustic backscatter from side-looking sonar are noted near the San Gregorio fault zone and they are thought to represent a surficial expression of the fault zone on the shelf (Fig. 1. Below is a geologic map pointing out the distribution of the Purisima Formation (in light beige color) and the major tectonic feature of this area -- the San Gregorio Fault, which is a fault associated with the San Andreas Fault System. The San b) Schematic structural map. However, it is actually a wide fault zone with several different smaller faults from the San Gregorio fault offshore of Monterey Bay in the west to western Nevada in the east (figure 1). The San Gregorio fault is the westernmost major fault that is part of the San Andreas Fault system. Here the fault system is over 100 km wide and incorporates faults in the offshore, including those of the Palo Colorado-San Gregorio and Monterey Bay fault zones . However, the nine counties of the Bay Area are home to dozens of major faults — the San Andreas, the Calaveras, the Concord-Green Valley, the San Gregorio, the Rodgers Creek and the Hayward, chief among them. The Hayward Fault is one of the secondary faults in this diffuse zone, along with the Calaveras Fault to the east and the San Gregorio Fault, west of the San Andreas. And despite San Francisco’s legendary 1906 earthquake, the San Andreas Fault does not go through the city. on 3 sheets 110 x 87 cm. North of the Golden Gate, dextral slip from the San Gregorio fault zone [60] may be transferred to the North Coast section [1b] along a right-releasing step. It's located in California, United States.Along the Big Sur coastline, just an easy walk from the highway, lies an easily accessible fault to explore! The nearest significant onshore cultural centers in the map area are San Gregorio and Pescadero, both unincorporated communities with populations well under 1,000. The right‐lateral San Gregorio‐Hosgri fault system (SGHF) extends mainly offshore for about 400 km along the central California coast and is a major structure in the distributed transform margin of western North America. This section of the San Andreas fault ruptured in the 1906 M~7.9 San Francisco earthquake, with similar events thought to have a recurrence interval of about 250 years. or smaller. Generalized geologic map of the northern on-land portion of the San Gregorio fault, showing the study area and both the previously mapped and the revised fault locations. Most of the San Gregorio fault trace is located offshore beneath the waters of Monterey Bay, Half Moon Bay, and the Pacific Ocean, though it cuts across land near Point Año Nuevo and Pillar Point. Both communities are situated inland of state beaches that share their names. Modified from Jennings (1994), segment boundaries (rectangles) along the San Andreas fault after WGCEe (1990). Advanced embedding details, examples, and help! Map of Quaternary faulting along the San Gregorio fault zone, San Mateo and Santa Cruz counties, California: Series title: Open-File Report: Series number: 80-907: DOI: 10.3133/ofr80907: Edition-Year Published: 1980: Language: ENGLISH: Description: 2 maps ;49 x 40 cm. EMBED (for wordpress.com hosted blogs and archive.org item tags) Want more? 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