";s:4:"text";s:27974:"Luckily, the area had a population of only about 1000 people at the time. Today, more than 2.4 million people live close to the fault and are at great risk when the next significant earthquake occurs. These faults run from Cape Mendocino to the Gulf of California. The Hayward fault runs through the East Bay hills from Richmond to San Jose. 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. Ground cracking caused by this earthquake was traced for 20 miles along the Hayward Fault, from Warm Springs in Fremont north to San Leandro. Scientists have been studying the past earthquakes on the Hayward fault. We're taking a look at the Hayward fault in California and the Cascadia subduction zone in the Pacific Northwest; both are statistically overdue. Power will be down. In the Greater Bay Area, it San Andreas, which continues north up the peninsula, has several branches. Starting in the south near Hollister, the Calaveras Fault branches off to run east of San Jose and continue through Pleasanton and Danville toward Walnut Creek. In 2018 we passed the 150 year mark since the last one in 1868. Deep below the city, the Hayward Fault -- one of the most active fault lines in the country -- suddenly slips, setting off a magnitude-7.0 earthquake. Because it runs through the East Bay, the most populated subregion of the San Francisco Bay Area, the Hayward Fault is considered one of the most dangerous faults in the United States. On April 18th of this year, the HayWired earthquake scenario will be released to the public. It was considered the "Great Earthquake" until 1906. It is very likely that the Hayward fault will rupture and produce a significant earthquake within the next 30 years. The upshot? So why do we need to know all this scary stuff? Launched as a beta version in 2009, SafeShare has gained popularity as the safest way to Watch and Share YouTube and Vimeo videos, and is widely used all around the globe by educators so their … In March, the USGS updated its California earthquake forecast report. The Hayward Fault extends from San Pablo Bay where it joins up with the Rodgers Creek Fault, to south of San Jose, where it merges with the Calaveras Fault, a length of 140 mi (230 km). But there’s another big earthquake anniversary in October that people don’t hear much about. However, with no better options, retrofitting should start as soon as possible to reduce potential damage. The last major earthquake in the area occurred on October 21, 1868, and was clocked at a magnitude of 6.8. A lidar image of the east side of UC Berkeley and the Hayward fault (red). Its last major earthquake occurred on October 21st, 1868, destroying downtown Hayward, killing 5 people and, injuring 30. Water will likely be shut down. Since it has been more than 144 years since the last major earthquake, the clock is ticking. The fault hasn’t generated a major earthquake since 1868, a source of concern for experts who cite evidence supporting the idea that the East Bay fault is overdue for a major earthquake. “Roadways will be shut down, the soft, water-saturated sandy deposits along the margin of the bay where we have airports and approaches to bridges, they’re likely to liquefy, ripping apart the roads,” she says. The chance of that occurring in the next 30 years is 3.6 percent, which seems pretty low, but the probability is up 93.7 percent from the prior forecast seven years ago. The last major tremor on the Hayward Fault was a magnitude-6.8 event that happened in 1868 – exactly 150 years ago. Please take some time to prepare yourself and your family in the unfortunate event of the 'Big One'. The 1868 earthquake on the Hayward Fault capped a decade-long sequence of seven increasingly strong quakes in the Bay Area. An end-to-end rupture of the Hayward Fault could cause an earthquake of magnitude 7.5. Andrew Alden, a geologist who runs the Oakland Geology blog, doesn’t think so. Nearly 3 million people currently live along the fault. There’s nothing anyone can do to prevent earthquakes or even to predict them. The picture she paints of the Bay Area after a major earthquake on the Hayward Fault is nothing less than terrifying. Notable structures include Memorial Stadium and the Greek Theater. There will be fires because gas lines will rupture. Scary … While the San Andreas fault gets most of the headlines for its seismic activity on the west coast of America, researchers claim that it is the Hayward Fault which is long overdue … A lesser-known cousin of the San Andreas Fault, the Hayward Fault is a crack in the earth’s crust up to 20 miles deep that stretches roughly 70 miles from San Pablo Bay in the north to Fremont and Milpitas at its southernmost end. The Hayward Fault runs nearly right through the heart of the region, splitting the flatlands from the hills. Learn more at outsmartdisaster.com. Tuesday's magnitude-4.0 earthquake in the San Francisco Bay Area caused relatively little damage, but it gave a glimpse of the potential geological threats the region could face. With an estimated magnitude of 6.8 it caused damage throughout the area. The Hayward fault is not our only fault. 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. KQED Quest. About SafeShare. They have found that the most recent 5 major earthquakes happened on average every 140 years. Quake hits on Hayward Fault, which is due for major temblor August 17, 2015, 7:13 PM A 4.0 magnitude earthquake that rattled the Bay Area struck on the Hayward Fault, which a UC Berkeley seismologist says is statistically 10 years overdue for a 7.0 temblor. So like you said, it's nothing to brush off, also since it has a 31.7% chance of rupturing with 6.7+ magnitude in the next 26 years. It’s also more likely that there will be a 6.7 or greater earthquake on the Hayward fault in the next 30 years, with a probability of 14.4 percent, up 1.2 percent from the prior forecast. “The state of the Earth’s crust is hardly different from what it was seven years ago when the USGS issued its previous forecast,” he wrote recently. I often say it would be a lot like Katrina but here, we’d be speaking 150 languages as well.”. Matériel piscine et équipement pour piscines Hayward. You're right that the Hayward Fault IS overdue for an earthquake, averaging about 150 years for a major earthquake. An earthquake could happen at any time now, and retrofitting would not help, as many buildings could still be under construction. October 17 marks the anniversary of the Loma Prieta earthquake, which shook Northern California in 1989, killing 63 people and causing an estimated $6 billion in damage. Your source for the latest research news This being said, retrofitting may not even be a plausible option anymore because the Hayward Fault is about ten years overdue. The Hayward Fault Zone is a geologic fault zone capable of generating destructive earthquakes. If that happened, there’s a high probability that the quake could continue onto the Calaveras Fault, causing it to rupture and raising the magnitude to around 7.8, spreading the devastation through the entire South Bay. The last major tremor on the Hayward Fault was a magnitude-6.8 event that happened in 1868 — exactly 150 years ago. According to the report, there’s a greater chance of a very large (magnitude 7.5 or greater) earthquake on the Hayward fault that was previously thought. They dug one trench near the Fremont BART station where they were able to find evidence of 12 major earthquakes on the Hayward Fault over the last 2,000 years. It's 4:18 in the afternoon in Oakland, California. Their conclusion: the Bay Area is overdue for another big one on the Hayward Fault. Research has shown that the last five big earthquakes on the Hayward Fault back to the year 1315 have occurred on average every 140 years. In 1868, the population living along the Hayward Fault was just 24,000. 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. Four urban areas of the San Andreas Fault System in Northern California have accumulated a sufficient amount of energy to produce major earthquakes, a new study finds. The San Andreas Fault system forms the boundary between the North American and the Pacific tectonic plates. Near San Jose the Hayward Fault branches off the Calaveras and continues north along the foot of the East Bay Hills. soft-story retrofit; seismic engineering; commercial buildings. So the region is … The most recent major earthquake on this fault was approximately M6.9 and occurred in 1868. Using a satellite-based imaging technique that very accurately surveys the ground, combined with high-resolution photography, Chaussard was able to detect the exact zones where the ground near the Hayward and Calaveras faults have been creeping. That temblor was 5 … “Realize these things do happen,” said Professor of Earth and Environmental Sciences Luther Strayer. Earthquakes don't keep schedules, of course, but a 210-year rate points to a date for a major quake on the northern Hayward Fault sometime between 1850 and 1986. The fault, a six- to seven-mile… The last major quake along the Hayward fault was in 1868, and university experts say CSUEB and others in the area should prepare for another. With an estimated magnitude of 6.8 it caused damage throughout the area. It predated the 1906 quake by nearly 40 years. Please, consider joining my Patreon Channel to support our Church and the poverty-stricken families that we help with charity! U.S. Geological Survey’s 2015 statewide earthquake forecast. The Hayward Fault: Overdue for Disaster - KQED QUEST. Wire Magazine explained(1), "The Hayward fault zone—which encompasses the areas of Berkeley, Oakland, Hayward, and Fremont—is ominously referred to as a “tectonic time bomb” by the US Geological Survey. The Hayward fault in the San Francisco Bay area runs through a densely-populated area, so it has been studied quite a bit. And today, more than 2.5 million people live within a stone’s throw of the Hayward Fault, including in densely populated areas like downtown Oakland. San Francisco alone suffered $350,000 in property damage. Every year around this time, millions of people around the world participate in The Great California ShakeOut. The problem is it’s not moving enough. What if...A 7.0 earthquake hit the San Francisco Bay Area? The Hayward fault has been quite active, there are other major faults near by or connected (San Andreas fault), I do like the term overdue, because we do not have a good history of the faults activity , we have a few hundred years (more or less) it would be nice to have more. It is a member of the San Andreas Fault system that runs from the Gulf of California in the south, to Cape Mendocino in the north. “It’s we who have changed our knowledge and models have progressed.”. But to answer is the Hayward fault overdue… The New Bay Bridge: Earthquake Makeover This video discusses the design and building of the new Bay Bridge after it was damaged in the Loma Prieta earthquake. Earthquake! 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 more powerful quake. A 4.0 magnitude earthquake that rattled the Bay Area struck on the Hayward Fault, which a UC Berkeley seismologist says is statistically 10 years overdue for a 7.0 temblor. Découvrez nos conseils d'entretien et notre configurateur de piscine en ligne. non-ductile concrete buildings; tilt up buildings; urm ( unreinforced masonry) steel frame buildings Click the 'Hazards and Preparedness' link at the top of the page for more information and great resources to help you. And so we’ll still have big earthquakes on the Hayward Fault to make up the difference.”. “It’s constantly moving, little amounts every year,” says Tom Brocher, a senior seismologist at the USGS in Menlo Park. This 74-mile-long zone has been quiet since 1868, when it generated its last large earthquake. 158 Views. Three fault sections -- Hayward, Rodgers Creek and Green Valley -- are nearing or past their average recurrence interval, according to the new study. The Hayward Fault is parallel to the San Andreas Fault, which lies offshore and through the San Francisco Peninsula. The Hayward Fault in the East Bay is considered the most dangerous earthquake fault in America. The Hayward Fault: Overdue for Disaster - KQED QUEST - YouTube The ShakeOut happens this month because here in California, it's "Earthquake Season." So the region is almost overdue for another one. In March, the USGS updated its California earthquake forecast report. Live here a few months, and you”ll either feel a mild quake or hear about it, and you”re no doubt aware of the Hayward fault. A paleoseismic study in … In 1868, a M~6.8 earthquake destroyed downtown Hayward, and did significant damage … The San Andreas and Hayward Faults (Earthquake) The Hayward and San Andreas Faults are located near California’s East Bay. Share. When Plates Collide This video discussess the relationship between plate tectonics and the occurrence of earthquakes. To share this video via email, copy and paste the message and URL below into your favorite email client and send. The fault has been creeping about 4.6 mm/yr (0.2 inches/yr) for the last several decades, but that is only half of the long-term slip rate, so stress is building upon this fault. WGBH Educational Foundation. It makes up one of the larger faults within the San Andreas Fault System, and has a history of large, damaging earthquakes. Rec. This fault is about 74 mi long, situated mainly along the western base of the hills on the east side of San Francisco Bay. According to the report, there’s a greater chance of a very large (magnitude 7.5 or greater) earthquake on the Hayward fault that was previously thought. People need to be prepared that something … Their conclusion: the Bay Area is overdue for another big one on the Hayward Fault. The Hayward Fault: Overdue for Disaster. “And it’s allowing the Earth to move very slowly without creating large earthquakes. It has now been 147 years since the last big one. Should we be more worried now? T In May, UC Berkeley seismologist Estelle Chaussard published an earthquake model that provides the clearest picture yet of the relationship between the Hayward Fault and the Calaveras Fault, which lies just south of the Hayward Fault and runs from San Jose past Hollister. The fault is around 119 km long and offers the potential for generating very destructive earthquakes. It's an opportunity for communities to think about one very unpleasant fact: big earthquakes can and do happen. Communications will be down. And the cost could easily reach upwards of $200 billion. Its last major earthquake occurred on October 21st, 1868, destroying downtown Hayward, killing 5 people and, injuring 30. “How quickly we recover from the earthquake,” says Brocher, “is determined by how well we’ve prepared for it.”. On October 21, 1868, a magnitude 7.0 earthquake occurred on the Hayward Fault in the East Bay. Earthquake scientists and disaster officials recommend that every household prepare a quake plan, get a kit to survive for three days after a major earthquake and make sure the buildings you live and work in are reinforced and safe. On July 21, the Hayward Fault produced another magnitude-4.0 earthquake at 2:41 a.m. on the border of Fremont and Union City. According to the U.S. Geological Survey’s 2015 statewide earthquake forecast, for every year that passes without a significant seismic event, the chance of another massive earthquake on the Hayward Fault increases. Over the last decade, paleoseismologists (geologists who study ancient earthquakes) at the USGS have been digging trenches across the Hayward Fault, peering into tectonic time in order to find evidence of fossil earthquakes. The Hayward Fault is considered one of the most powerful fault lines in the world, running parallel to the potentially catastrophic San Andreas fault, and 150 years almost to the day, researchers warn it is overdue a quake. This is earthquake country. Needless to say, these types of events will be devastating to the 7 million people who live and work in the Bay Area. (Play Video), Cooperative Institute for Deep Earth Research (CIDER), Northern California Earthquake Data Center (NCEDC). “We look at the fires and pandemic — earthquakes are also on that list, and we are overdue. For residents of the East Bay, the Hayward fault is of particular concern because it runs through many cities such as San Jose, Fremont, Hayward, San Leandro, Oakland, Berkeley, El Cerrito and Richmond. Thank you for your support. So the region is almost overdue for another one. “We can we assume transportation networks will be completely disrupted and destroyed. Alden is referring in part to new technology that has been employed recently to deepen our understanding of tectonic activity. In 1868, the towns of Hayward, San Leandro and Fremont were hardest hit. It runs through densely populated areas, including Richmond, El Cerrito, Berkeley, Oakland, San Leandro, Castro Valley, Hayward, Union City, Fremont, and San Jose. The problem is how much pressure has built up and how much pressure has been relieved by small earthquakes. On October 21, 2018, we will commemorate the 150th anniversary of the M 6.8 Hayward Fault earthquake. Are you, your family, and your business prepared to outsmart disaster? Stanford geophysicist Mary Lou Zoback specializes in risk and catastrophe modeling. There won’t be enough water to fight the fires. Still, 30 people died in the 1868 earthquake and hundreds of buildings from the East Bay to San Francisco to Gilroy were destroyed. 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