[18] This is compared to 6.4 percent for the San Andreas Fault, which can have larger earthquakes but is farther away from a significant portion of the urbanized parts of the Bay Area. dominates the landforms of eastern San Francisco Bay. More extensive disruption and greater hazard could be caused by the failure of elevated structures, both those over which the highway passes and overcrossings of the freeway, of which there are two nearby. The Hayward Fault runs along the foot of the East Bay hills, something that all residents of the Bay Area, and the East Bay in particular, should know. The Hayward Fault: Maps & Tours. Field Guide from Normal resolution; HD resolution; Detailed Perspective Views . Extensive additional interpretive material concerning the geology and seismology of the Bay Area was presented for viewing, most of which is currently accessible online. Boundary Zone between the North American Plate and the Pacific The segments were sunk into a ditch dredged through bay mud and covered with rock fill, and then pumped free of water upon completion, making the resulting tube somewhat buoyant, but held in place with a rock overfill. There is the possibility that a large earthquake could trigger very large earth flows, particularly if the soils are seasonally saturated with water, possibly rendering extensive areas unbuildable. The Hayward Fault Zone is a geologic fault zone capable of generating destructive earthquakes. Since the 1906 San Andreas event there have been no moderately strong earthquakes on the Hayward fault as were seen before that earthquake. As the bulk of cargo containers from the Port of Oakland travel on these two roads, the disabling of both would cause severe disruption of West Coast import and export goods, owing to the consequent overloading of other West Coast container handling ports. The Exhibit features a 14-foot-deep view of the Hayward fault. In each movie the left panel shows a map view of the area with the fault highlighted in red, the epicenter (location where the rupture starts) identified by the red ball, and the location shown in the right panel labeled in yellow. Fascinating Look At A Fault Running Through An Urban Area, As amateur geologists, a look at a significant fault running through an urban area is fascinating. This is the version of our website addressed to speakers of English in the United States. A shaking intensity map for the 1868 Hayward fault earthquake. This fault is about 74 mi (119 km) long, situated mainly along the western base of the hills on the east side of San Francisco Bay. Until overshadowed by the 1906 earthquake, the 1868 event was known as the “great San The ground moves about 6-12 inches (0.2-0.3 m) at locations close to the fault. Affected areas are likely to be without electrical power for an extensive period. Children's Natural History Museum and Tule Ponds at "The Hayward Fault: America's Most Dangerous? However, the 1868 quake caused much damage throughout the then sparsely settled Bay Area, including the city of San Francisco. Hayward Fault Exposed, Fremont: See 9 reviews, articles, and 3 photos of Hayward Fault Exposed, ranked No.21 on Tripadvisor among 32 attractions in Fremont. It is becoming widely understood that professional fire fighting, police, and medical services will be overwhelmed by a major event and that neighbors will have to assist each other as best they can. Pacific Gas & Electric Company has numerous gas distribution lines crossing or near the Hayward Fault. You can also view a shake map for the event and see how severe the earthquake was in different parts of the Bay Area. The average slip or offset across the fault is about 2 ft (0.7 m). since 1982 has served the education and public by This in turn can make fuel supplies for vehicles and emergency generators unavailable locally and impact both domestic water, industrial water, sewage plants, and drainage pumping. The largest quake on the Hayward Fault in recorded history occurred in 1868, with an estimated magnitude of 7.0. Several PG&E gas transmission pipelines also cross the fault. Plate. The purpose of this map is to show the location of and evidence for recent movement on active fault traces within the Hayward Fault Zone, California. The Hayward Fault shares the same relative motions of the San Andreas. (See the Virtual tour – Google Earth Flyover below.). Additional stabilization includes the driving of large pilings and the connection of additional restraints. HD versions are available below. [17], For the thirty years following 2014, the probability of there being one or more magnitude 6.7+ earthquakes on the Hayward Fault during that time frame was estimated at 14.3 percent. [20], In 2012, USGS scientists said the fault is due for another magnitude 6.8 to 7.0 earthquake, with the California Geological Survey concurring, stating they believe there is a 31 percent chance of a magnitude-6.7 earthquake or greater along the Rogers Creek-Hayward Fault in the next 30 years. To share this video via email, copy and paste the message and URL below into your favorite email client and send. After the San Bruno pipeline explosion, which was unrelated to seismic activity, it took PG&E crews 95 minutes to stop the gas flow to both ends of that failed pipeline. These three scenarios show the ground shaking for a magnitude 6.8 earthquake on the Hayward fault. The topography has been exaggerated by a factor of four to make the hills and mountains more readily visible. The transbay tube terminates at an under-bay slip joint near the Embarcadero Station in San Francisco. Click the link below to look at different faults in the Bay area as well as other neat maps of the Bay! They provide the posters and map for the Faulted Floor http://usgs.gov, for more informationMath/Science Nucleus Subsequent seismic analysis indicated the possibility that the overfill could fail due to agitation, allowing the buoyant tube to float upward, misaligning the tracks and possibly overstressing the bolted connections.  in U.S. GEOLOGICAL SURVEY Only a portion of the structural deficiencies in the larger area have been addressed, and the surface motion effects of a large event are likely to be far more severe than seen in the Loma Prieta event. Science Nucleus) (southeast) and the Pacific Plate  These images and movies are in the public domain and may be used freely. Derailments have often occurred during major earthquakes, both directly by tipping and by roadbed failures; industrial accidents involving these materials have caused extensive health hazards in the mixed residential–industrial areas of Richmond. The Hayward Fault pretty much runs through the center of downtown Fremont and many of its suburban neighborhoods where this walk is located. Public Tours (City of Fremont, register). Science Nucleus), Field trips (elementary to college, Such sensor networks and warning devices have a potential to reduce the hazards from falling objects and furnishings provided that the people notified are well trained in appropriate responses (similar to the Cold War's "duck and cover" training of schoolchildren). The work was the subject of several lawsuits from neighborhood and environmental groups, who were concerned about such extensive construction on top of a major fault. Several jurisdictions in the affected area have implemented volunteer Community emergency response team programs to augment the professional response services. Cellphone and most landline telephone service, while theoretically survivable for a short time on battery and emergency power, could instead suffer immediate disruption from ground shaking effects. http://msnucleus.org. Communities on or near the fault include San Jose, Oakland, Fremont, Richmond, Berkeley, Hayward, San Leandro, San Lorenzo, El Cerrito, Emeryville, Kensington and Milpitas. Fremont, California 89,162 contributions 3,674 helpful votes Fascinating to see Hayward Fault Exposed, Fremont, CA I went to Central Park and saw the Hayward Fault Exposed ebhibit. It passes through parts of Berkeley, Oakland, Hayward and Fremont before branching into a set of surface faults that connect it to the central part of the Calaveras Fault, according to the USGS. fault is one of only a few dozen faults in the world that “creeps,” or It has a population of close to 1/4 million people and A number of spills have previously occurred due to landslides and such spill and related toxic and flammable material release may be prevalent in a major seismic event. In June 2006 Bay Area Rapid Transit (BART) management announced that they have elected not to modify the Berkeley Hills Tunnel, which actually penetrates the Hayward Fault, arguing that it would be cheaper (and less disruptive to current operations) to rebore a misaligned portion after the fact than to protect riders (either by extensive modifications of the tunnel or by replacing it with a higher bore) against the small likelihood that a train (or two) would crash into or be cut in two by a major slippage of the fault. The Hayward The Hayward Fault runs from San Pablo Bay to Fremont. This sitting and walking tour definitely wakes you up to the reality of "when" (not if) the FREMONT FAULT LINE (NOT !!! The fault is slowly moving, resulting in offset of structures like this curb. To the east of the Hayward lies the Calaveras Fault. Significant adverse conditions remain which can cause disruption with possible long-term effects upon critical traffic infrastructure despite these modifications. The designed slip margin has been reduced by half due to unforeseen settlement of the tube structure. and that much life-safety protective work remains to be done. Similar conditions underlie the eastern approach roads to the Bay Bridge. The slip or offset across the fault is the same in all three cases, but the earthquake ruptures start in different locations- Oakland, Hayward, or Fremont. The area affected by an earthquake is also dependent upon the density and uniformity of the soils surrounding the fault. Many of the earth marks have been removed in recent park renovations (old twisted. Parallel to the Eastshore Freeway and inland only two blocks is a four-track railroad route used for general freight traffic, including that generated by the Port of Oakland (Union Pacific and BNSF railroads) and by Amtrak passenger traffic to the Pacific Northwest and eastward through Reno and Salt Lake City. The Hayward Fault is within the San Andreas Fault  These scenario earthquakes rupture 33 miles (54 km) of the Hayward fault extending from Fremont to Berkeley. Foundation and soft story weaknesses are easily remediated in most cases, but this is only effective if the work is competently done, with proper attention to minor details such as nailing patterns and proper connections. The relative motion between the North American Plate  Math Science Nucleus), Fremont Earthquake A replacement of the eastern span was completed in August 2013.  4074 Eggers Drive, Fremont, California, U.S.A., 94536 It passes through parts of Berkeley, Oakland, Hayward and Fremont before branching into a set of surface faults that connect it to the central part of the Calaveras Fault, according to the USGS. If you are a resident of another country or region, please select the appropriate version of Tripadvisor for your country or region in the drop-down menu. The last major quake on the Hayward Fault hit on Oct. 21, 1868. It was long believed that there was no connection between the Hayward Fault and the Calaveras, but geological studies[10] (particularly the examination of very small and deep earthquakes) suggest that the two may be connected. Zoom in and mouseover this interactive USGS map to locate local fault lines and recent earthquakes. in Warm Springs and goes back into the hills around the Click on the map to view the normal resolution movie for that location. In the Fremont area the Hayward Fault dissects the city. Evidence of creep can be found from Pt. earthquakes. Please choose a different date. Recent estimates of the damage potential of a major Hayward Fault earthquake by a professional risk management firm indicate the potential for huge economic losses, of which only a small percentage is insured against earth movement.

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