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Fremont Earthquake Exhibit: The Hayward Fault Exposed. This geotourism exhibit (April through October 2006, now closed) featured a 12- to 15-foot (5 m) deep pit exposing the Hayward Fault, which could be viewed "face to face" from a shaded platform by descending a staircase. Significant features were noted and marked.
The 1868 Hayward earthquake occurred in the San Francisco Bay Area, California, United States on October 21.With an estimated moment magnitude of 6.3–6.7 and a maximum Mercalli intensity of IX (Violent), it was the most recent large earthquake to occur on the Hayward Fault Zone.
The Shinn area is bounded approximately by Peralta Blvd to the south and Niles to the north and forms the northern part of the Parkmont district of Fremont. In the Shinn area is the Shinn Pond and the Shinn Historic Park and Arboretum, [6] where the Shinn house still stands. The Shinn family ran a nursery, importing trees from throughout the ...
The tunnel crosses the Hayward Fault at a nearly perpendicular angle 850 feet (260 m) from its western portal, and creep along the fault resulted in an offset of 13 inches (330 mm) by 2008. [6] The maximum credible earthquake (magnitude 7.0) predicted in studies would cause an offset of 7.5 feet (2.3 m).
The earthquake-active Hayward Fault bisects the tunnel about 900 feet (270 m) inside the west portal (Oakland side). There are 2 bores, each 17.5 feet (5.3 m) in diameter, [3] spaced 50 feet (15 m) apart. Pedestrian cross-tunnels are spaced every 1,000 feet (300 m) for emergency evacuation in case of fire, etc.
A full fault rupture, estimated to be around a 7.5 magnitude, could kill between 3,000 and 18,000 people, according to US Geological Survey and Southern California Earthquake Center.
The fault zone responsible for Thursday's 7.0 magnitude earthquake off the coast of California is not known to produce large tsunamis, but due to the size of the event, NOAA’s Tsunami Warning ...
A fault off the Pacific coast could devastate Washington, Oregon and Northern California with a major earthquake and tsunami. Researchers mapped it comprehensively for the first time.