The quake damaged many buildings, causing injury to over 170 citizens, power outages, fire hazard, and infrastructure failure. [9] The earthquake lasted 10 to 20 seconds, depending on location. The earthquake's epicenter was located about six miles south-southwest of Napa and 51 miles west-southwest of Sacramento. 1 . Artist impression of Chicxulub impact. At 6.0 on the moment magnitude scale and with a maximum Mercalli intensity of VIII (Severe), the event was the largest in the San Francisco Bay Area since the 1989 Loma Prieta earthquake. The moderate earthquake that struck California’s Napa Valley on Sunday collapsed older buildings, sparked fires and caused scores of injuries. The transit impact of the South Napa earthquake, as reported by Bay City News: Amtrak's Capitol Corridor train service has been temporarily suspended this morning between Sacramento and San Jose while crews inspect the tracks for damage following the earthquake early this morning near American Canyon. The United States Geological Survey (USGS) estimated that 15,000 people experienced severe shaking, 106,000 people felt very strong shaking, 176,000 felt strong shaking, and 738,000 felt moderate shaking. Citizen Scientist Contributions ; Did You Feel It? The “South Napa Earthquake” is the largest earthquake to have affected the Bay Area since the 1989 Loma Prieta earthquake. Attfield KR, Dobson CB, Henn JB, Acosta M, Smorodinsky S, Wilken JA, Barreau T, Schreiber M, Windham GC, Materna BL, Roisman R. On August 24, 2014, at 3:20 a.m., a magnitude 6.0 earthquake struck California, with its epicenter in Napa County (1). Interviews with members of households affected by the South Napa earthquake indicated that in addition to exten- sive property damage, many members of the community experienced injuries or mental health stressors, or both, and these findings suggest immediate public health and future preparedness priorities for affected communities. The 2014 South Napa earthquake occurred in the North San Francisco Bay Area on August 24 at 03:20:44 Pacific Daylight Time. The earthquake was the largest earthquake in the Bay Area since the magnitude 6.9 1989 Loma Prieta earthq… United States. In a new report, scientists from MIT and elsewhere detail how, even after the earthquake’s main tremors and aftershocks died down, earth beneath the surface was still actively shifting and creeping — albeit much more slowly — for at least four weeks after the main event. Education and Outreach Best Practices Team of DR-4193-CA, the South Napa Earthquake Disaster. Historic buildings in wine country were damaged, and power loss threatens wineries' stock. Effects of the earthquake were widely observed across the Napa Valley region from Vallejo and Mare Island in the South to the North end of Napa Valley. An experimental earthquake warning system being developed by the Berkeley Seismological Laboratory issued a warning upon detecting the P-waves five seconds before the slower, more destructive S-waves arrived in Berkeley. The South Napa earthquake’s epicentre was approximately 9 kilometres southwest of Napa, Calif., a town of about 77,000 people. … [12] President Obama declared a major disaster for Napa and Solano counties. Officials ride Napa Valley Wine Train to spur tourism. In addition, a M3.0 earthquake … … 10-20 seconds: The length of the earthquake, which hit about six miles south of Napa… The earthquake's epicenter was a few miles south of Napa Valley's renowned wineries, and the quake busted barrels and bottles of precious vintages. Two years after rocking and rolling through Napa’s Aug. 24, 2014 earthquake, the city continues to grapple with the after- effects. [28] The United Methodist Church received $2.2 million in repairs and upgrades and reopened the doors to its congregation in November 2015. [13], Several older commercial buildings in downtown Napa showed signs of extensive external damage even though many had been retrofitted for earthquake safety protection. This report is an overview of The M6.0 South Napa earthquake occurred on August 24, 2014. South Napa earthquake is our “wake-up call” to renew investment and action to enhance the seismic resilience of communities, businesses, and residents across the state. At least twelve aftershocks followed, including one of magnitude 3.9. A lock ( The earthquake's epicenter was a few miles south of Napa Valley's renowned wineries, and the quake busted barrels and bottles of precious vintages. The Mw 6.0 South Napa earthquake of August 24, 2014, produced complex and extensive surface faulting and other ground deformation features. We analyze centimeter-scale accuracy mobile laser scanning (MLS) data of deformed vine rows within ±300 m of the principal surface expression of the M (magnitude) 6.0 2014 South Napa earthquake. [32] An $11.6 million contract for restoration of the courthouse was awarded by Napa County in August 2017. 2014-08-24 10:20:44 (UTC) 38.215°N 122.312°W; 11.1 km depth; Did You Feel It? M6.0 South Napa Earthquake M6.0 South Napa Earthquake. The use of InSAR was invaluable for identifying and mapping secondary traces with small displacements, and for delineating the overall details of the extensive rupture. City Staff reported that 156 commercial and residential structures had been red-tagged and 1398 had been yellow-tagged. ABC News station KGO … Bay Area leaders discuss earthquake preparedness. The West Napa and Carneros faults, although considered to be minor Quaternary players within the San Andreas fault system, are major faults that in part bound the Mayacamas Mountains, an uplifted block of … [9] At least six of the injuries were classified as critical. Number and percentage of households reporting injuries after the South Napa earthquake, by injury characteristics — Napa 16th World Conference on Earthquake, 16WCEE 2017 Santiago Chile, January 9th to 13th 2017 2 1. California Earthquake Authority South Napa Home Impact Study Phases 1 and 2 Integrated Findings Report Executive Summary Prepared for the California Earthquake Authority (CEA) By Sharyl Rabinovici1 January 2017 OVERVIEW This report summarizes findings of an in-depth California Earthquake Authority (CEA) research project to survey and analyze what happened to single-family … LockA locked padlock Following the event, geologists made more than 1,200 field observations at locations where tectonic faulting and ground failure produced visible deformation that fractured and disturbed the ground surface. [5] Thirteen of those injured were admitted. On Sunday, August 24, 2014 at 3:20 a.m. (local time) a magnitude 6.0 earthquake struck near Napa, California. Extensive ground deformation also occurred off the principal fault traces. TABLE 1. [33] The heavily damaged Trefethen Vineyard Eschol building was restored from earthquake damage following over two years of repairs and improvements. If the entire fault had ripped, the earthquake would have been more powerful. Potential-field data indicate that the M6.0 South Napa earthquake and its aftershocks were influenced by complex structure among the West Napa-Carneros-Pinole-Franklin faults system. The San Andreas Fault System is an active plate boundary comprising right-lateral strike-slip faults that runs nearly the length of California. President Obama declared the South Napa Earthquake a major disaster on September 11, 2014 3. Governor Brown declared a state of emergency on August 24, 2014 2. In Napa, 62 properties remain red-tagged, meaning they are too dangerous to access. [44], 24 August 2014 earthquake centered in Napa, California, USA, "M6.0 – 6km NW of American Canyon, California", "Napa quake damage rises to $362 million", Napa, Calif., earthquake: Economic hit could reach $1 billion, "Napa's people, buildings hit hard by 6.0 earthquake", "Boats, grapes and Poseidon at Napa quake's epicenter", "The Mw 6.0 24 August 2014 South Napa Earthquake", "Northern California earthquake is area's strongest in 25 years", "After earthquake near Napa, up to 100 homes labeled unfit to enter", "Strong Earthquake Shakes Northern California", "Napa quake: Obama declares major disaster, freeing up aid", "Earthquake damage repaired, Napa's Native Sons building shines again", Northern California earthquake: Blue-collar Vallejo hit hard, "Earthquake cracks, buckles roads, but leaves bridges OK", "Wine industry tallies spilled wine, shattered barrels", "Napa quakes causes $80 million blow to wine industry, report says", "Napa tallies earthquake damage across city", "Napa earthquake death: 2 weeks later, quake claims first victim -", "First earthquake-related death reported", "Crumbled by Napa earthquake, Uptown Theatre mural rises again", "First Presbyterian church returns to quake-damaged sanctuary after almost two years", "After earthquake repairs, Napa Methodist church to reopen Sunday", "Napa awards repair contract for quake-damaged Goodman Library", "Napa's old post office sold for $2 million for a hotel", "Repair of earthquake damage to Napa courthouse to start soon", "Trefethen rebounds after the earthquake", "Napa quake jumpstarts stream flows, though probably only temporarily", "Surprise bonanza since Napa quake: dry creeks now flowing", "After big quake, Napa fault could move 6 inches in 3 years", "Napa's surprise fault line triggers earthquake study of the region", "Experimental warning system gave 10-second alert before California earthquake", "In Latest Calif. Earthquake, Shake Alert Tests Its Legs", "Expanding Earthquake Warning System May Help the Public", "California receives U.S. funding for earthquake early-warning system- LA Times", SCEC's Response to the South Napa Earthquake, The August 24, 2014 South Napa Earthquake: What Is Known So Far, Accessing Open Information And Preliminary Ground Motion Simulations, California earthquake strikes San Francisco Bay area, Quake rocks California wine country, dozens injured, Mapping of the West Napa Fault Zone for input into the Northern California Quaternary fault database, Study: 2014 Napa quake may be linked to groundwater changes, https://en.wikipedia.org/w/index.php?title=2014_South_Napa_earthquake&oldid=993842594, Creative Commons Attribution-ShareAlike License, This page was last edited on 12 December 2020, at 19:52. Caption: A map shows the location of the August 24, 2014 earthquake just south of Napa, California. [7][8], The mainshock was magnitude 6.0, with a depth of 11.3 km. [9] The Goodman Library, Napa County Courthouse Plaza, Sam Kee Laundry Building, Downtown U.S. Post Office, Alexandria Hotel and Annex, Native Sons of the Golden West building,[14] First United Methodist Church, and First Presbyterian Church all suffered moderate to extensive damage. Part or all of this report is presented in Portable Document Format South Napa Earthquake today, M 6.0-6.1--geologic context Building destroyed in Napa. [3] Several wineries including Hess Collection and Trefethen Vineyards suffered damage to buildings and infrastructure. The system would cost $80 million in funding to run for five years in California, or $120 million for the whole West Coast. The epicenter of the earthquake was located to the south of Napa and to the northwest of American Canyon on the West Napa Fault.[6]. browser may not display or print as intended. Several wine storage facilities also suffered damage and loss of property. The South Napa Earthquake caused extensive damage through both ground shaking and surface cracking (rupture). Scientists have gathered at the USGS headquarters in Menlo Park to review the effects of the South Napa Earthquake. The results of this compilation reveal that faulting occurred within a 2-km-wide zone on six, roughly parallel traces within the West Napa Fault System. Following the event, geologists made more than 1,200 field observations at locations where tectonic faulting and ground failure produced visible deformation that fractured and disturbed the ground surface. 1: 11 Oct 2014 24 August 2014 M w 6.0 S. Napa Earthquake SPA Reconnaissance Report . Only part of the West Napa Fault broke open. The preferred fault model for the 2014 South Napa earthquake has a cumulative seismic moment of 1.28 × 10 18 Nm during its 8 s of coseismic rupture. South Napa, USA Earthquake Clearinghouse M6.0 AUGUST 24, 2014 AT 10:20:44 UTC. The California Disaster Assistance Act generally provides that the state share for disaster project allocations to local agencies is no more than 75% of total state eligible costs, except for specified events for which the state share is up to 100% of state eligible costs. [35][36], In the following months, geologists studying the effects of the event warned that a potential afterslip could cause the previously unmapped portion of the fault in the Browns Valley area of Napa to slowly move up to another 6 inches (150 mm) in the next 3 years.[37][38]. [2] According to an early estimate by the USGS, the economic costs to Napa County may go as high as $1 billion. Ground Initially this was reported to be a 10-second warning in Berkeley,[39][40] but revised information indicates only a 5-second warning was provided. The earthquake … The disaster was declared on September 11, 2014. This bill would add the August 24, 2014, South Napa Earthquake, Earthquake to the list of events for which the state share of state eligible cost is up to 100%. A state of emergency remained in effect following the South Napa Earthquake, which struck about 3:20 a.m. local time Sunday, according to the U.S. Geological Survey. Download the latest version of Adobe Reader, free of charge. Potential-field data indicate that the M6.0 South Napa earthquake and its aftershocks were influenced by complex structure among the West Napa-Carneros-Pinole-Franklin faults system. South Napa M w 6 Earthquake Reconnaissance Report 26 Sept 2014 Rev. At a few locations, large-scale, detailed, field-based maps of fault rupture and ground deformation were produced. [23], About 200 injured people were treated at Queen of the Valley Medical Center in Napa. The quake was the strongest to strike the Bay Area since the 6.9 Loma Also, Brief Report for West Napa fault, Browns Valley section. Strong shaking occurred in the epicentral region, but low level shaking extended throughout the San Francisco Bay area. the documents to your computer and open them with Adobe Reader. Director, Earthquake Science Center—Menlo ParkU.S. (PDF). Maximum coseismic slip was greater than 40 cm and possibly as great as 60 cm, with the slip maximum located about 10 km north of the epicenter. After the earthquake, PEER summarized various preliminary observations, in which the following ground motion characteristics were described (Kishida … Official websites use .gov [27] The congregation of the First Presbyterian Church moved back into the sanctuary in July 2016 following repairs and restoration at a cost of $850,000. The authors of a separate study that focused on Global Positioning System data gave an estimated slip rate of 4±3mm/yr for the West Napa Fault. affected by the August 24, 2014 South Napa M6.0 earthquake. [22], On September 16, 2014 in a report to the Napa City Council, members were briefed on the status of damage sustained. J.L. [41] This means the S-waves had already arrived in Napa and Vallejo when the warning was issued. The epicenter of that earthquake was 20 km (12 mi) NNW of the South Napa epicenter, and also on the West Napa fault system. [18] CNN reported one individual still in critical condition, later discovery determined as a 58-year-old male who went through two surgeries, awakening four days later in ICU to discover it was going to take him approximately two years to learn how to walk again. [19] Pavement on several roads in Napa, Solano and Sonoma Counties buckled and cracked during the quake. The map, observations, and photo database are summarized here in appendixes and figures and are also available as a series of digital data products within a companion U.S. Geological Survey data release (Ponti and others, 2019); the characteristics of fault rupture and ground deformation features are summarized in detail in the body of this report. The Data Map displays earthquake damage and impact observations from EERI field teams and other contributors using EERI's Photo Upload … After incorporating feedback from the field test, the survey tool will be ready for deployment in the next major earthquake. Total damage in the southern Napa Valley and Vallejo areas was in the range of $362 million to $1 billion, with one person killed and 200 injured. Been seen in a Northern California earthquake since 1906, researchers said and its were... Injuries and Traumatic Psychological Exposures Associated with the South Napa earthquake caused extensive damage through both shaking... 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