Courtesy USGS Show More Show Less. Since it has been more than 144 years since the last major earthquake… This Temblor map shows the complex network of faults across the Bay Area. When the last quake struck the Hayward Fault in 1868, the Bay Area was sparsely populated. 0000282595 00000 n
It is a right-lateral strike-slip fault, meaning that motion along it is mainly horizontal, so that objects on the opposite side of the fault from the viewer will move to … 0000572015 00000 n
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The Hayward Fault slips both during those large earthquakes and also the rest of the time from fault creep. I�ic�
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event of an earthquake of magnitude 6.9 on the Hayward fault As is apparent, the most intense (MMI Vlll+) zone would be primarily within the borders of Alameda County. 6 0 obj<>
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The Hayward Fault. Menu Contact Search 0000521316 00000 n
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. For those interested in more information on the famous 1868 Hayward fault earthquake, the USGS has great information about this event. Along with great virtual tours, the USGS has many wonderful sets of maps of the Bay Area that show different aspects of living in such a tectonically active area. But the most significant improvement in shaking resistance was the advent of steel-frame buildings in 1885. xref
It was considered the "Great Earthquake" until 1906. For those interested in more information on the famous 1868 Hayward fault earthquake, the USGS has great information about this event. This Temblor map shows the complex network of faults across the Bay Area. The Hayward fault is due for another large earthquake very soon. 0000138233 00000 n
A ticking time bomb . For more information, please call Planning at 510.583.4200 or visit our webpage: 0000244356 00000 n
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https://www.usgs.gov/natural-hazards/earthquake-hazards/faults The Hayward is one of three major fault zones of the San Andreas system that have produced large historic earthquakes in the San Francisco Bay Area (the others being the San Andreas and Calaveras). A recent study found such an event would cause an estimated 800 deaths, 18,000 injuries and billions in damage. Its last major rupture occurred in 1868, during California's frontier days, and was the original "Great San Francisco Earthquake" until 1906.. 0000077224 00000 n
For residents of the San Francisco East Bay, the greatest seismic hazard is the Hayward Fault. A recent study found such an event would cause an estimated 800 deaths, 18,000 injuries and billions in damage. The “Shake Map” at right shows the shaking intensities expected for a hypothetical scenario earthquake (magnitude 6.7) on the southern Hayward Fault, which last ruptured in 1868 in an event of magnitude about 6.9. Also on the older map, faults are depicted as thicker black lines running through the center of the zone. The “Shake Map” at right shows the shaking intensities expected for a hypothetical scenario earthquake (magnitude 6.7) on the southern Hayward Fault, which last ruptured in 1868 in an event of magnitude about 6.9. Of all of these faults, the Hayward Fault has the highest probability of rupturing in a M=6.7+ earthquake in the next 30 years, according to the USGS. Source: USGS Hayward Fault Shake Map. The fault needs to move about 6/16ths of an inch (9mm) per year to release the energy building up at the surface. 0000208292 00000 n
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But creep on the Hayward Fault does allow us to map its trace precisely, and to see where large ruptures might happen when the fault does break again. USGS. endstream
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Dr. Sue Ellen Hirschfeld, previously a Professor of Geology at California State University, East Bay, has an informative website with lots of photos and interesting places to visit. 0000001834 00000 n
It is among the most active faults and seismologists warn it will likely be the source of the next "big one" in San Francisco-Bay Area. 0000450458 00000 n
The Hayward Fault in Fremont creeps about 3/16ths of an inch (5mm) per year. 0000002704 00000 n
The Hayward Fault is capable of producing a 7.0 earthquake over an area with hundreds of hospitals, schools, police and fire stations. The Hayward is one of three major fault zones of the San Andreas system that have produced large historic earthquakes in the San Francisco Bay Area (the others being the San Andreas and Calaveras). The older map on the right shows an earthquake fault zone as semi-parallel lines connected to small circles where the lines change direction. Fremont Earthquake Exhibit. This event marked the end of a period of severely reduced creep on the southern part of the fault that began after the 1989 Loma Prieta, California, earthquake. Hayward (/ ˈ h eɪ w ər d /; formerly Haywards, Haywards Station, and Haywood) is a city located in Alameda County, California in the East Bay subregion of the San Francisco Bay Area.With a 2019 population of 159,203, Hayward is the sixth largest city in the Bay Area and the third largest in Alameda County. The newer map on the left shows an earthquake fault zone as a semi-transparent yellow polygon. The Hayward Fault is thought capable of generating a magnitude 7.5 quake. According to the Association of Bay Area Governments the Hayward Fault will cause $165 billion in damage when it ruptures. However, experts say the 800-mile fault which passes through much of California including the San Francisco Bay Area, is overdue for a major earthquake along with the 70-mile Hayward Fault … In 2015, UC Berkeley researchers suggested that the Hayward fault may be connected to the nearby Calaveras fault, which, if true, would mean the potential for a … The Hayward Fault is a major earthquake fault that runs for nearly 45 miles (72 km) through the East Bay of the San Francisco Bay region. In the simulation, the earthquake starts at the very northern section of the fault near Richmond and ends near Hayward. #ǡ�@� �- �K3�
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A Point of Comparison. Bay Area Earthquake Fault Map Resources USGS 2014 Significant Earthquakes Archive Hayward Fault Zone List of the strongest California earthquakes Fault Attributes Key NAME is an 80-character field for the name of the fault (including section name, i.e., Denali fault, Holitna section). A shaking intensity map for the 1868 Hayward fault earthquake. 0000011719 00000 n
In 1996, an 18-millimeter creep event, the largest ever observed on the Hayward fault, occurred between surveys 63 days apart. Many tribes even left the region permanently. It runs through densely populated areas, including Richmond, El Cerrito, Berkeley, Oakland, San Leandro, Castro Valley, Hayward, Union City, Fremont, and San Jose. Of all of these faults, the Hayward Fault has the highest probability of rupturing in a M=6.7+ earthquake in the next 30 years, according to the USGS. The Hayward fault runs through the East Bay hills from Richmond to San Jose. They have found that the most recent 5 major earthquakes happened on average every 140 years. 0000414041 00000 n
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New study shows humans have been causing earthquakes in Texas since 1920s (2016) SMU scientists will map faults in North Texas (2015) SMU analysis of recent earthquake sequence reveals geologic fault, epicenters in Irving and West Dallas (2015) SMU seismology team to cooperate with state, federal scientists in study of May 7 Venus earthquake (2015) 0000505178 00000 n
By the time Lewis and Clark arrived on the West Coast in 1805, it had been 105 years since the Cascadia Subduction Zone last ruptured, sending a large portion of the Pacific Ocean roaring toward the coast. … A shaking intensity map for the 1868 Hayward fault earthquake. 0000003146 00000 n
Since then, nearly three million people have moved next to the Hayward fault with little regard for its earthquake potential. Hayward Fault Shake Map. x�b``�e``+a``�ؓʀ 0000567396 00000 n
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To start the tour, download and open the “Hayward Fault Map and Tour” file in Google Earth (free download), then click the “Play Tour” button located at the bottom of the “Places” panel. Deadly earthquake fault 02:15 It was one of the deadliest disasters ever to the hit the U.S. On April 18, 1906, the great San Francisco earthquake killed more than 3,000 and destroyed half the city. Dislocation models of the surface deformation adjacent to the Hayward fault measured with the global positioning system and interferometric synthetic aperture radar favor creep at ∼7 millimeters per year to the bottom of the seismogenic zone along a ∼20-kilometer-long northern fault segment. 0000027984 00000 n
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According to the USGS, the real threat comes from smaller (about magnitude 7) earthquakes occurring on the Hayward fault, the Peninsula segment of the San Andreas fault, or the Rodgers Creek fault. What if...A 7.0 earthquake hit the San Francisco Bay Area? 0000072676 00000 n
The Hayward Fault Zone is a geologic fault zone capable of generating destructive earthquakes. We’ve updated this video: https://youtu.be/GhFMtCmHc9cOctober 21st will mark the 141st Anniversary of the 1868 Hayward Earthquake. Are you, your family, and your business prepared to outsmart disaster? 0000574351 00000 n
Take a virtual tour with Google Earth to explore what the East Bay looked like in 1868 and what the damage was like. 0000565359 00000 n
The Hayward fault is an extremely interesting feature of the East Bay and you can see its footprints all over the place once you know where and how to look. It comes just over four months after a 4.4 magnitude quake along the fault near Berkeley. These large earthquakes were both regular and frequent, as indicated by a 0.40 coefficient of variation and mean recurrence interval (MRI) of 161 ± 65 yr (1σ of recurrence intervals). The Hayward fault zone is considered to be the most probable source of a major earthquake in the San Francisco Bay Area, as much as 28% chance for a magnitude 7 earthquake before the year 2021 (Working Group on California Earthquake Probabilities, 1990). This map of the San Francisco Bay region, California, shows simulated ground shaking caused by the hypothetical magnitude-7.0 mainshock of the HayWired earthquake scenario on the Hayward Fault. 0000001576 00000 n
Examine Hayward's earthquake zones Take a look at the The Hayward Fault Zone and Traces Map to examine where the Hayward Fault runs through our City. State of California. Scientists are keeping a nervous eye on the Hayward fault, which runs along the most urbanized edge of San Francisco’s East Bay.The Hayward fault activity is capable of generating destructive earthquakes. A shaking simulation for the San Francisco Bay Area for a magnitude 7.0 earthquake on the Hayward Fault. Geophysicist and author Horst Rademacher has written this guide to a brief walking tour of the Hayward Fault on the UC Berkeley campus: The USGS has made a virtual tour using Google Earth. The Hayward Fault runs through the East Bay from San Pablo Bay in the north We’ve updated this video: https://youtu.be/GhFMtCmHc9cOctober 21st will mark the 141st Anniversary of the 1868 Hayward Earthquake. However, experts say the 800-mile fault which passes through much of California including the San Francisco Bay Area, is overdue for a major earthquake along with the 70-mile Hayward Fault … Bay Area Earthquake Fault Map Resources San Jose Fault Map South San Jose Fault Map USGS 2014 Significant Earthquakes Archive Hayward Fault Zone List of the strongest California earthquakes Fault Attributes Key NAME is an 80-character field for the name of the fault (including section name, i.e., Denali fault, Holitna section). 0000487440 00000 n
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. On Monday evening (May 14), there was a 3.5 magnitude earthquake along the fault centered just east of Oakland. 0000106617 00000 n
For more information, please call Planning at 510.583.4200 or visit our webpage: A geonarrative (Esri Story Map) describing what it might be like the next time the Hayward fault has a large earthquake. The U.S. Geological Survey describes the Hayward Fault as “the single most urbanized earthquake fault in the United States.” Picture via Temblor According to the U.S. Geological Survey, the average rate of creep on the Hayward is 4.6 millimetres per year or about the length of a standard black garden ant, or a quarter of a jelly bean. The Hayward fault is a 90 kilometer long crack in the Earth's crust that travels through the San Francisco Bay area. 8 0 obj<>stream
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Take a virtual tour with Google Earth to explore what the East Bay looked like in 1868 and what the damage was like. The largest of the DFW-area earthquakes was a 3.3 magnitude event reported by the USGS National Earthquake Information Center. You can look at numerous pictures along the fault as well as view the actual fault path, all with beautiful satellite images! and that much life-safety protective work remains to be done. Fault and … 0000572918 00000 n
Skip to Main Content. 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. 0000225829 00000 n
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Deadly earthquake fault 02:15 It was one of the deadliest disasters ever to the hit the U.S. On April 18, 1906, the great San Francisco earthquake killed more than 3,000 and destroyed half the city. A map shows where the earthquakes were felt. Copyright © 2020 UC Regents; all rights reserved, Explore the science behind a simulation of a magnitude 7 earthquake on the East Bay's Hayward Fault and learn what it could mean for shaking potential in your area. This is an easy walk and a good opportunity to educate yourself and your children. 0000565858 00000 n
Hayward Earthquake Map ¬ Legend Accurately Located Fault Traces Fault Zone. Running for nearly 74 miles through cities including Fremont, Hayward, Oakland, Berkeley, and Richmond, the Hayward Fault has the potential to wreak more havoc than most California faults. The Hayward fault is due for another large earthquake very soon. Menu Contact Search Hayward Earthquake Map ¬ Legend Accurately Located Fault Traces Fault Zone. 0000322757 00000 n
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