affected by the August 24, 2014 South Napa M6.0 earthquake. TABLE 1. [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. [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. Napa households reported that the condition worsened, with 32% seeking additional medical care, whereas western Vallejo households reported fewer worsening conditions (28%) and seeking of medical care (6%). Some suggestions for standardizing the collection and dissemination of post-earthquake field reconnaissance data are provided herein. It was also reported that the estimate for damage to the City's infrastructure had reached $57.9 million. The quake damaged many buildings, causing injury to over 170 citizens, power outages, fire hazard, and infrastructure failure. Deformation characteristics of these features were not consistent with either primary faulting or shaking-induced ground failure and remain enigmatic, although this report includes speculation about possible origins. 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. [10] At least twelve aftershocks followed, including one of magnitude 3.9. 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. The 24 August 2014 Mw 6.0 South Napa, California earthquake produced significant offsets on 12 borehole strainmeters in the San Francisco Bay area. The earthquake was centered 4 miles (~6 km) … Stability of rapid finite-fault inversion for the 2014 Mw6.1 South Napa earthquake Yong Zhang1, Rongjiang Wang2, and Yun-Tai Chen1,3 1School of Earth and Space Sciences, Peking University, Beijing, China, 2Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, 3Institude of Geophysics, China Earthquake Administration, Beijing, China 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. Several of these regions had no visible ground deformation, whereas others did produce features that were inconsistent with tectonic faulting, so care must be taken not to over interpret the InSAR data without careful, corroborating field investigations. 3:20 a.m.: The time the earthquake rattled residents awake across the region. Through an online survey, interviews, and home inspections, a large amount of new data were collected about the characteristics of Napa area houses and the effects 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. COVID-19 holiday risk: The safest and most dangerous activities . The South Napa earthquake of August 24, 2014 caused the strongest shaking in the San Francisco Bay area since the 1989 Loma Prieta earthquake, 25 years earlier. 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. 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 … Download the latest version of Adobe Reader, free of charge. the documents to your computer and open them with Adobe Reader. 1: 11 Oct 2014 24 August 2014 M w 6.0 S. Napa Earthquake SPA Reconnaissance Report . 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 The mainshock was magnitude 6.0, with a depth of 11.3 km. [3] Several wineries including Hess Collection and Trefethen Vineyards suffered damage to buildings and infrastructure. After the earthquake, PEER summarized various preliminary observations, in which the following ground motion characteristics were described (Kishida … [33] The heavily damaged Trefethen Vineyard Eschol building was restored from earthquake damage following over two years of repairs and improvements. 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). Artist impression of Chicxulub impact. City Staff reported that 156 commercial and residential structures had been red-tagged and 1398 had been yellow-tagged. The San Andreas Fault System is an active plate boundary comprising right-lateral strike-slip faults that runs nearly the length of California. PDF documents opened from your [20], Within days, County officials estimated the damage at $362 million. The Napa Historic Courthouse was damaged in the South Napa earthquake on Aug. 24, 2014. (PDF). Earthquake warning systems could potentially give people time to take cover in the event of a quake, preventing injuries caused by falling debris, automatically stopping trains or shutting off gas lines. The developer plans to turn the building into a hotel. But the South Napa earthquake could have been worse. On August 24, 2014, the northern San Francisco Bay Area was struck by the largest earthquake to impact the Bay Area since the 1989 M6.9 Loma Prieta earthquake. [16] Six major fires broke out,[9] and four homes in Napa Valley Mobile Home Park located in north Napa were destroyed. [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. 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%. More information 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. Governor Brown declared a state of emergency on August 242, and President Obama declared the South Napa Earthquake a major disaster on September 11, 20143. Gov. Strong shaking occurred in the epicentral region, but low level shaking extended throughout the San Francisco Bay area. 4 . [17] In Vallejo, several hundred storefront windows shattered and many building walls suffered extensive damage. [5] Thirteen of those injured were admitted. The South Napa earthquake’s epicentre was approximately 9 kilometres southwest of Napa, Calif., a town of about 77,000 people. 1 . Governor Brown declared a state of emergency on August 24, 2014 2. Two years after rocking and rolling through Napa’s Aug. 24, 2014 earthquake, the city continues to grapple with the after- effects. Share sensitive information only on official, secure websites. 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. [28] The United Methodist Church received $2.2 million in repairs and upgrades and reopened the doors to its congregation in November 2015. 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. 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. The “South Napa Earthquake” is the largest earthquake to have affected the Bay Area since the 1989 Loma Prieta earthquake. 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). The 2014 South Napa earthquake provides an opportunity to reconsider the Mare Island earthquake of 31 March 1898, which caused severe damage to buildings at a Navy yard on the island. Jerry Brown declared a state of emergency following the South Napa earthquake, which struck at 3:20 a.m. Sunday, according to the U.S. Geological Survey. Napa courthouse opens for the first time since 2014 earthquake. State Sen. Bill Dodd issued a … The advantages and opportunities these new methods bring to our research also pose new challenges to large-scale compilation efforts and demonstrate the value of developing guidelines and better standardization across the community to more optimally utilize developing technology in future post-earthquake investigations. A water main on Mare Island broke. Most are … 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. A .gov website belongs to an official government organization in the The moderate earthquake that struck California’s Napa Valley on Sunday collapsed older buildings, sparked fires and caused scores of injuries. Responses. [11] The earthquake was the largest earthquake in the Bay Area since the magnitude 6.9 1989 Loma Prieta earthquake. 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. Catalog CDI Responses Source check NC VIII 41269 US 5 . Full Story. [31] The United States Postal Service determined that repairing the building would be too costly and sold it to a developer for $2 million. browser may not display or print as intended. 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. 2 March 12 2016 Page 1 1.0 Introduction This report describes the performance of lifelines systems due to the South Napa, M 6.0 earthquake of August 24, 2014. The South Napa earthquake taught us some valuable lessons: We can't always rely on government assistance. All earthquake… Bay Area leaders discuss earthquake preparedness. 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 earthquake was the largest to affect the San Francisco Bay area in 25 years and caused significant damage in Napa and Solano counties, including widespread power outages, five residential fires, and damage to roadways, waterlines, and 1,600 buildings (2). 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. 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. An official website of the United States government. At a few locations, large-scale, detailed, field-based maps of fault rupture and ground deformation were produced. Firefighters were hampered in their efforts to fight this fire by a broken water main. [12] President Obama declared a major disaster for Napa and Solano counties. VIII mmi. Geological Survey345 Middlefield Road, MS 977Menlo Park, CA 94025. Disaster relief: South Napa Earthquake. On Sunday, August 24, 2014 at 3:20 a.m. (local time) a magnitude 6.0 earthquake struck near Napa, California. [15] Several newer commercial buildings also suffered damage. Seismic Warning Systems, Inc., a private earthquake warning company based in Scotts Valley, CA, had installed on-site warning systems at five fire stations in Vallejo in 2002 and 2003. [13], Several older commercial buildings in downtown Napa showed signs of extensive external damage even though many had been retrofitted for earthquake safety protection. Many streams and springs, which were dry or nearly dry before the 2014 Mw6.0 South Napa earthquake, started to flow after the earthquake. … The incident period was from August 24, 2014 to September 7, 2014. This report is an overview of 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. [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. The M6.0 South Napa earthquake occurred on August 24, 2014. [22], On September 16, 2014 in a report to the Napa City Council, members were briefed on the status of damage sustained. 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. Citizen Scientist Contributions ; Did You Feel It? The South Napa earthquake produced rare fissures. 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) 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 … The earthquake … South Napa Earthquake Links: USGS event page. Several wine storage facilities also suffered damage and loss of property. Also, Brief Report for West Napa fault, Browns Valley section. Open-File Report These strainmeters are located between 24 and 80 km from the source, and the observed offsets ranged up to 400 parts per billion (ppb), which exceeds their nominal precision by a factor of 100. Officials ride Napa Valley Wine Train to spur tourism. SOUTH NAPA EARTHQUAKE. ABC News station KGO … [24] Many of the injuries were lacerations and abrasions from fallen debris. [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. 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. The epicenter of that earthquake was 20 km (12 mi) NNW of the South Napa epicenter, and also on the West Napa fault system. [32] An $11.6 million contract for restoration of the courthouse was awarded by Napa County in August 2017. Number and percentage of households reporting injuries after the South Napa earthquake, by injury characteristics — Napa Official websites use .gov Governor Brown declared a state of emergency on August 24 2, … [9] At least six of the injuries were classified as critical. [10] Governor Jerry Brown declared a state of emergency due to the severe damage and the possibility of aftershocks. [19] Pavement on several roads in Napa, Solano and Sonoma Counties buckled and cracked during the quake. 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. Keywords: resilience; recovery; businesses; reconnaissance; earthquakes . 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. 2014 South Napa Earthquake to refine and improve the survey. [23], About 200 injured people were treated at Queen of the Valley Medical Center in Napa. [7][8], The mainshock was magnitude 6.0, with a depth of 11.3 km. Nicholas Dillon was gravely injured after many bricks from a chimney fell on him. President Obama declared the South Napa Earthquake a major disaster on September 11, 2014 3. Geotripper: Magnitude 6.0 Quake in Northern California - … Ongoing fault movement along the surface rupture, called afterslip, continued for several months, and caused further damage to foundations and structures. 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). Director, Earthquake Science Center—Menlo ParkU.S. In addition, a M3.0 earthquake … [1] 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. [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. LockA locked padlock The Earthquake Event Page application supports most recent browsers ... M 6.0 - South Napa. Contributed by NC 4 ; Felt Report - Tell Us! J.L. ) or https:// means you’ve safely connected to the .gov website. Most of the fault slip, and all the afterslip, occurred on the 21-km-long westernmost trace (Trace A). The epicenter was located approximately 9 km south of the city of Napa in northern California. This bill would declare that it is to take effect immediately as an urgency statute. [9] The earthquake lasted 10 to 20 seconds, depending on location. South Napa M 6.0 Earthquake Rev. 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. Please tell us about your experience. Because of its role in the California economy and its stagnant economic growth, the Napa earthquake is going to create large challenges - in addition to those caused by the drought … 2 . 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]. [24] In Vallejo, 49 people were injured, including two who were hospitalized. 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. 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. [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. Only part of the West Napa Fault broke open. Injuries and Traumatic Psychological Exposures Associated with the South Napa Earthquake — California, 2014 MMWR Weekly Vol. 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. The Mw 6.0 South Napa earthquake of August 24, 2014, produced complex and extensive surface faulting and other ground deformation features. InSAR data also highlighted other areas with possible ground deformation—some of which are found coincident with previously mapped fault traces, whereas others are in areas where no faults were previously mapped. [25][26], Several of the historic buildings damaged in the earthquake have been repaired while others are still awaiting renovation and restoration. "South Napa" M6.0 earthquake occurred west of The earthquake lasted 10 to 20 seconds, depending on location. 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. One person died September 5 as a result of injuries from the quake. Secure .gov websites use HTTPS Ground Another 900 to 1,000 properties have yellow tags. South Napa M w 6 Earthquake Reconnaissance Report 26 Sept 2014 Rev. 2014-08-24 10:20:44 (UTC) 38.215°N 122.312°W; 11.1 km depth; Interactive Map . 10-20 seconds: The length of the earthquake, which hit about six miles south of Napa… The underground upheaval generated severe shaking at the surface, lasting 10 to 20 seconds. Such surface eruptions hadn’t been seen in a Northern California earthquake since 1906, researchers said. 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. M 6.0 - South Napa. 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. The quake was the strongest to strike the Bay Area since the 6.9 Loma Residential structures and wineries surrounding this area were significantly damaged. The disaster was declared on September 11, 2014. United States. 6 . Historic buildings in wine country were damaged, and power loss threatens wineries' stock. Two deaths resulted (2). After incorporating feedback from the field test, the survey tool will be ready for deployment in the next major earthquake. 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. 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. Injuries and Traumatic Psychological Exposures Associated with the South Napa Earthquake - California, 2014. The South Napa earthquake response was one of the first times when post-earthquake reconnaissance data were mostly collected and disseminated electronically. [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. [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]. South Napa, USA Earthquake Clearinghouse M6.0 AUGUST 24, 2014 AT 10:20:44 UTC. If the entire fault had ripped, the earthquake would have been more powerful. M6.0 South Napa Earthquake M6.0 South Napa Earthquake. [41] This means the S-waves had already arrived in Napa and Vallejo when the warning was issued. The earthquake's epicenter was located about six miles south-southwest of Napa and 51 miles west-southwest of Sacramento. 2014-08-24 10:20:44 (UTC) 38.215°N 122.312°W; 11.1 km depth; Did You Feel It? [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. More than 170 … The Uptown Theater was the first to reopen on November 9, 2014. The West Napa Fault transfers slip between a group of related faults (including the Concord Fault and the Calaveras Fault) called the Contra Costa Shear Zone, which was assigned a maximum slip rate of 1mm/yr in the third Uniform California Earthquake Rupture Forecast. [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. Part or all of this report is presented in Portable Document Format 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) … 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. [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. A lock ( Faults that runs nearly the length of California 2014 to September 7, 2014 to September,! Theater was the first times when post-earthquake reconnaissance data were mostly collected and disseminated.! September 5 as a result of injuries from the field test, the survey will! Were damaged, and all the afterslip, occurred on the 21-km-long westernmost trace ( trace a ) 9th 13th. Injured people were injured, including one of the West Napa fault broke open both. Had reached $ 57.9 million and improvements Aug. 24, 2014 were hospitalized disaster for Napa and Solano counties depth. 2017 Santiago Chile, January 9th to 13th 2017 2 1 ; Did You Feel it million for... Survey tool will be ready for deployment in the Bay Area since the 1989 Loma Prieta earthquake detailed... 1398 had been red-tagged and 1398 had been yellow-tagged [ 32 ] an $ 11.6 million contract for of. By NC 4 ; Felt Report - Tell Us counties buckled and cracked during the quake websites use.gov.gov. 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[ 9 ] at least twelve aftershocks followed, including one of the West Napa fault Browns.