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hayward fault earthquake

The Hayward Fault may be less well-known than the San Andreas Fault, but seismologists now call it a time bomb that could kill nearly a 1,000 people and injure tens of thousands more. Now think about how we'll do in an earthquake when our roads will be impacted (the Hayward Fault runs right over 680 and many main transportation corridors!). ... We compare the spatial distribution of stress drops on the Hayward fault to a model of creeping versus locked behavior of the fault and find that high stress … While some creeping faults are completely unlocked and do not build up the significant stress needed to generate large earthquakes, the Hayward Fault is only partially locked. Fremont Earthquake Exhibit. Like most earthquake faults in the region, it is a right-lateral strike-slip fault; that is, facing the fault from either side, the opposite side moves to the right. In the 2010 update, the significant points from the 1996 report are summarized and then updated information is provided. The fault broke for about 30 miles from around Milpitas to the Oakland-Berkeley border. The Hayward Fault Zone is a geologic fault zone capable of generating destructive earthquakes.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.It runs through densely populated areas, including Richmond, El Cerrito, Berkeley, Oakland, San Leandro, Castro Valley, Hayward, Union City, Fremont, and San Jose. The Hayward Fault in the East Bay is considered the most dangerous earthquake fault in America. … The western side moved north and the eastern side moved south. Search for other works by this author on: GSW. Afterward, the county seat moved to Oakland. While the effects of these earthquakes may differ from place to place, a major earthquake on the Hayward fault is not an exclusive East Bay concern and a San Andreas event is not an exclusive San Francisco concern. Since then, nearly three million people have moved next to the Hayward fault with little regard for its earthquake potential. The last major rupture occured in 1868 with an M 6.8-7.0 event. This fault is capable of M 7 earthquakes and presents significant ground motion hazard to the heavily populated East Bay, including the cities of Oakland, Berkeley, Hayward and Fremont. The Hayward Fault, or more correctly the Hayward Fault Zone, is a large geological fault zone located along the western base of the hills on the east side of San Francisco Bay. October 12, 1868: An earthquake with a magnitude of 6.8 struck the region of San Francisco Bay. The Hayward Fault is thought capable of generating a magnitude 7.5 quake. However, many scientists believe that the Hayward Fault is connected to the Calaveras Fault to the south, the Rodgers Creek Fault to the north and to the Maacama Fault still farther north. The earthquake will cause $90.4 billion damage to residential buildings and 96.4 to commercial buildings. It was closer to San Leandro where the fault slipped about 6 feet. This means that the Hayward Fault is not frictionally locked and can slip without large earthquakes. The threat to San Francisco from the Hayward fault was recognized by A. C. Lawson in 1908 in Report of the State Earthquake Commission, The California earthquake of April 18, 1906, p. … The Hayward Fault Zone runs through much of Hayward, including the downtown area. It was approximately a magnitude 6.9. This fault is capable of M 7 earthquakes and presents significant ground motion hazard to the heavily populated East Bay, including the cities of Oakland, Berkeley, Hayward and Fremont. Page 75 of The online version of “The Coming Bay Area Earthquake: 2010 Update of Scenario for a Magnitude 7.0 Earthquake on the Hayward Fault published by the Earthquake Engineering Research Institute describes the situation vividly. Your article made me think of the presentation at NCGS about the massive computer modelling done on the Hayward Fault that surprisingly, showed much higher ground motions east of the fault than west! Earthquake Stress Drops and Inferred Fault Strength on the Hayward Fault, East San Francisco Bay, California Jeanne L. Hardebeck; Jeanne L. Hardebeck U.S. Geological Survey, Menlo Park, California. The Hayward fault runs parallel to several other local faults. But things have changed since 1906 and the Hayward is now … The online version of “The Coming Bay Area Earthquake, 2010 Update of Scenario for a Magnitude 7.0 Earthquake on the Hayward Fault” (PDF file, 3.5 MB) is now available. The Hayward fault is a major strike-slip fault on the eastern side of the Bay Area. At the time, it was known as the 'great San Francisco quake' (this was before the infamous 1906 quake, produced by the San Andreas fault), and it produced massive amounts of damage and several people lost their lives. The Hayward fault is a major strike-slip fault on the eastern side of the Bay Area. The Hayward fault is a 90 kilometer long crack in the Earth's crust that travels through the San Francisco Bay area. Abstract. Where possible, original chapter authors were interviewed and many assisted in updating their contributions. Last year there was an M=4.4 earthquake in the Piedmont area, which is pretty close to the swarm of quakes that hit in the past 2 days, although unlike today’s quake, it was not on the main strand of the Hayward Fault. Pallett Creek, CA (after Sieh, et al. The past five large earthquakes on Hayward fault have been about 140 years apart , so this fault and the Rodgers Creek faults are the most likely to have a major earthquake in the bay. The 1996 report are summarized and then updated information is provided 1355 1! Including the downtown Area the significant points from the 1996 report are summarized and then updated information is.. 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