[43] In December 2014, United States Congress approved a $5 million allocation as part of the Consolidated Appropriations Act, 2014 in order to expand funding for development of the system. 3:20 a.m.: The time the earthquake rattled residents awake across the region. Governor Brown declared a state of emergency on August 24, 2014 2. The rupture has an average rupture velocity of 3.0 km/s and a peak slip of 2.24 m. Figures 3 a– 3 c show the spatial distributions of slip, rise time, and average slip rate, respectively. [34], The event was credited with large, temporary increases in the water flow of several nearby streams, including Carriger Creek, Calabasas Creek, Felder Creek, Sonoma Creek, Tulocay Creek, Green Valley Creek, and Wild Horse Creek. [23], About 200 injured people were treated at Queen of the Valley Medical Center in Napa. Bay Area leaders discuss earthquake preparedness. 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. 2014-08-24 10:20:44 (UTC) 38.215°N 122.312°W; 11.1 km depth; Interactive Map . [22], On September 16, 2014 in a report to the Napa City Council, members were briefed on the status of damage sustained. Although the structure of the Uptown Theater was determined to be sound, the building was red-tagged due to damage to the theater's ceiling. Other aspects of the event included an experimental earthquake warning system that alerted seismologists several seconds before the damaging shear waves arrived, temporary changes in springs and wells, and the potential for postseismic fault creep. 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 … The “South Napa Earthquake” is the largest earthquake to have affected the Bay Area since the 1989 Loma Prieta earthquake. [21] Estimates of the damage to the wine industry were downgraded to between $80 and $100 million in a September 5, 2014 report from Silicon Valley Bank to the Napa County Board of Supervisors. Citizen Scientist Contributions ; Did You Feel It? 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. [18], Following the first round of building inspections by the City of Napa inspectors, a total of 613 structures had been tagged; 113 were red-tagged and 500 had been yellow-tagged. Director, Earthquake Science Center—Menlo ParkU.S. The Mw 6.0 South Napa earthquake of August 24, 2014, produced complex and extensive surface faulting and other ground deformation features. South Napa Earthquake today, M 6.0-6.1--geologic context Building destroyed in Napa. The M6.0 South Napa earthquake occurred on August 24, 2014. Two years after rocking and rolling through Napa’s Aug. 24, 2014 earthquake, the city continues to grapple with the after- effects. The Mw6.0 South Napa earthquake of 24 August 2014, the largest earthquake to hit the San Francisco Bay area since the 1989 Mw6.9 Loma Prieta earthquake, occurred at a depth of 11 km on a steeply dipping, NNW striking19 After incorporating feedback from the field test, the survey tool will be ready for deployment in the next major earthquake. PDF documents opened from your It was also reported that the estimate for damage to the City's infrastructure had reached $57.9 million. The event was then the largest in the San Francisco Bay Area since the 1989 Loma Prieta earthquake, which measured 6.9 on the moment magnitude scale, but was later surpassed by the 2014 South Napa earthquake. Some suggestions for standardizing the collection and dissemination of post-earthquake field reconnaissance data are provided herein. The system being developed at the Berkeley Seismological Laboratory (called ShakeAlert) in conjunction with the United States Geological Survey, the California Institute of Technology and the University of Washington, will eventually cover the entire West Coast. Nearly two years ago, on August 24, 2014, just south of Napa, California, a fault in the Earth suddenly slipped, violently shifting and splitting huge blocks of solid rock, 6 miles below the surface. Disaster relief: South Napa Earthquake. The epicenter was located approximately 9 km south of the city of Napa in northern California. State Sen. Bill Dodd issued a … All earthquake… the documents to your computer and open them with Adobe Reader. The earthquake lasted 10 to 20 seconds, depending on location. South Napa Earthquake Links: USGS event page. The Mw 6.0 South Napa earthquake of August 24, 2014, produced complex and extensive surface faulting and other ground deformation features. 1: 11 Oct 2014 24 August 2014 M w 6.0 S. Napa Earthquake SPA Reconnaissance Report . The South Napa earthquake produced rare fissures. Number and percentage of households reporting injuries after the South Napa earthquake, by injury characteristics — Napa "South Napa" M6.0 earthquake occurred west of [42] These systems commanded the bay doors to open at these fire stations between 1.7 and 2.4 seconds before the S-waves arrived at each fire station. Such surface eruptions hadn’t been seen in a Northern California earthquake since 1906, researchers said. [41] This means the S-waves had already arrived in Napa and Vallejo when the warning was issued. [9] The earthquake lasted 10 to 20 seconds, depending on location. Two deaths resulted (2). [16] Six major fires broke out,[9] and four homes in Napa Valley Mobile Home Park located in north Napa were destroyed. Most are … The South Napa earthquake taught us some valuable lessons: We can't always rely on government assistance. It is one of the first damaging earthquakes to strike a major metropolitan area in the State of … [29][30] A $1.75 million contract to repair damage to the Goodman Library was awarded in January 2017 and work on the building is expected to be completed in early 2018. [11] The earthquake was the largest earthquake in the Bay Area since the magnitude 6.9 1989 Loma Prieta earthquake. This bill would declare that it is to take effect immediately as an urgency statute. The South Napa earthquake’s epicentre was approximately 9 kilometres southwest of Napa, Calif., a town of about 77,000 people. The 24 August 2014 Mw 6.0 South Napa, California earthquake produced significant offsets on 12 borehole strainmeters in the San Francisco Bay area. … 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. [9] At least six of the injuries were classified as critical. [32] An $11.6 million contract for restoration of the courthouse was awarded by Napa County in August 2017. [24] Many of the injuries were lacerations and abrasions from fallen debris. This total included repairs made to 144 water mains, repairs or replacement of a compromised water tank in Brown's Valley that is part of the City's water system and repair of 294 locations where streets and sidewalks had been damaged. Caption: A map shows the location of the August 24, 2014 earthquake just south of Napa, California. 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. Official websites use .gov Responses. [5], All of these buildings are listed on the National Register of Historic Places, as is the Thomas Earl House, a historic residence that was badly damaged. Geological Survey345 Middlefield Road, MS 977Menlo Park, CA 94025. South Napa, USA Earthquake Clearinghouse M6.0 AUGUST 24, 2014 AT 10:20:44 UTC. 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. [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. Artist impression of Chicxulub impact. The Earthquake Event Page application supports most recent browsers ... M 6.0 - South Napa. 2.4 magnitude earthquake 2020-12-04 10:55:59 UTC at 10:55 December 04, 2020 UTC Location: Epicenter at 38.815, -122.812 7.2 km from Cobb (4.2 miles) 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). Revising archival accounts of the 1898 earthquake, I estimate a lower intensity magnitude, 5.8, than the value in the current Uniform California Earthquake Rupture Forecast (UCERF) catalog (6.4). A Year After South Napa Earthquake, Damage Proves Widespread and Costly Ninety-one percent of respondents in CEA research experienced some kind of damage SACRAMENTO, Calif., August 24, 2015 – The California Earthquake Authority (CEA) today announced preliminary findings of research on how the 6.0-magnitude earthquake that struck Napa one year ago today affected single-family homes. At a few locations, large-scale, detailed, field-based maps of fault rupture and ground deformation were produced. Only part of the West Napa Fault broke open. More than 170 … Catalog MMI Source Description check NC VIII ATLAS 3 ShakeMap Atlas v4 ATLAS VIII ATLAS 3 NORTHERN CALIFORNIA NC VIII NC 4 6.4 km (3.9 mi) … [17] In Vallejo, several hundred storefront windows shattered and many building walls suffered extensive damage. 2019-1018, Explore recent publications by USGS authors, Browse all of Pubs Warehouse by publication type and year, Descriptions of US Geological Survey Report Series, The Mw 6.0 South Napa earthquake of August 24, 2014—Observations of surface faulting and ground deformation, with recommendations for improving post-earthquake field investigations, Characteristics of Off-fault Ground Deformation. Home; Resources; Photo Gallery; Data Map; How to Contribute ; About; Donate; View geolocated imagery and data collected for this earthquake in two ways: DATA MAP. A water main on Mare Island broke. [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. Many streams and springs, which were dry or nearly dry before the 2014 Mw6.0 South Napa earthquake, started to flow after the earthquake. A .gov website belongs to an official government organization in the This network of faults trends north-northwest in the area of the West Napa Fault, where it is 50 miles (80 km) wide from west to east. browser may not display or print as intended. Please tell us about your experience. Open-File Report Field observations and maps were integrated with airborne imagery, lidar, and InSAR to produce a comprehensive, large-scale digital map of fault rupture and zones of ground deformation. [10] At least twelve aftershocks followed, including one of magnitude 3.9. The earthquake's epicenter was located about six miles south-southwest of Napa and 51 miles west-southwest of Sacramento. [3] Several wineries including Hess Collection and Trefethen Vineyards suffered damage to buildings and infrastructure. On Sunday, August 24, 2014 at 3:20 a.m. (local time) a magnitude 6.0 earthquake struck near Napa, California. Contributed by NC 4 ; Felt Report - Tell Us! Governor Brown declared a state of emergency on August 24 2, … 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. For best results viewing and printing PDF documents, it is recommended that you download [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. Share sensitive information only on official, secure websites. J.L. 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. A lock ( Firefighters were hampered in their efforts to fight this fire by a broken water main. One person died September 5 as a result of injuries from the quake. Artist unknown. The magnitude 6.0 South Napa Earthquake of August 24, 2014, took the lives of two people, injured 300 others, and caused moderate to severe damage to more than 2,000 structures. Ponti, D.J, Rosa, C.M, and Blair, J.L., 2019, The Mw 6.0 South Napa earthquake of August 24, 2014—Observations of surface faulting and ground deformation, with recommendations for improving post-earthquake field investigations: U.S. Geological Survey Open-File Report 2019–1018, 50 p., 15 appendixes, https://doi.org/10.3133/ofr20191018. In addition, the water levels of several wells in the Sonoma Valley rose suddenly at the time of the quake, in one instance by 5 feet (1.5 m). The Napa Historic Courthouse was damaged in the South Napa earthquake on Aug. 24, 2014. Education and Outreach Best Practices Team of DR-4193-CA, the South Napa Earthquake Disaster. [10] Governor Jerry Brown declared a state of emergency due to the severe damage and the possibility of aftershocks. City Staff reported that 156 commercial and residential structures had been red-tagged and 1398 had been yellow-tagged. But the South Napa earthquake could have been worse. 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. Several wine storage facilities also suffered damage and loss of property. Earthquake-related fault slip in the upper hundreds of meters of Earth’s surface has remained largely unstudied because of challenges measuring deformation in the near field of a fault rupture. [31] The United States Postal Service determined that repairing the building would be too costly and sold it to a developer for $2 million. [33] The heavily damaged Trefethen Vineyard Eschol building was restored from earthquake damage following over two years of repairs and improvements. 1 . The system would cost $80 million in funding to run for five years in California, or $120 million for the whole West Coast. Part or all of this report is presented in Portable Document Format [13], Several older commercial buildings in downtown Napa showed signs of extensive external damage even though many had been retrofitted for earthquake safety protection. Most of the fault slip, and all the afterslip, occurred on the 21-km-long westernmost trace (Trace A). The South Napa Earthquake caused extensive damage through both ground shaking and surface cracking (rupture). COVID-19 holiday risk: The safest and most dangerous activities . The earthquake … (PDF). Residential structures and wineries surrounding this area were significantly damaged. Gov. 64, No. 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. Contribute to citizen science. about viewing, downloading, and printing report files can be found here. Napa courthouse opens for the first time since 2014 earthquake. 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 … [15] Several newer commercial buildings also suffered damage. President Obama declared the South Napa Earthquake a major disaster on September 11, 2014 3. Injured people were injured, including one of magnitude 3.9 declared on September 11, to. Injured people were treated at Queen of the city of Napa, 62 properties red-tagged. Ongoing fault movement along the surface, lasting 10 to 20 seconds to on. 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