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- W2889587373 abstract "PreviousNext No AccessSEG Technical Program Expanded Abstracts 2018Seismic hazard classifications and VS30 in Connecticut using MASW and HVSR methodsAuthors: Sarah L. C. MortonJohn W. LaneMargaret A. ThomasLanbo LiuSarah L. C. MortonKansas Geological Survey, formerly U.S. Geological SurveySearch for more papers by this author, John W. LaneU.S. Geological SurveySearch for more papers by this author, Margaret A. ThomasConnecticut Geological Survey, Department of Energy and Environmental ProtectionSearch for more papers by this author, and Lanbo LiuUniversity of Connecticut, Department of Civil and Environmental EngineeringSearch for more papers by this authorhttps://doi.org/10.1190/segam2018-2996137.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractFive new seismic hazard classifications for Hartford County, Connecticut (CT), were proposed by New England State Geologists (NESG) in an effort to improve the current USGS Seismic Hazard Map. These classes were derived from mapped surficial materials, but in situ information is required to verify this approach. Therefore, active and passive surface wave techniques were performed at thirty field sites to determine VS30 and compare the results to the NESG map. Passive data were processed using the Horizontal-to-Vertical Spectral Ratio (HVSR); active data were processed with the multi-channel analysis of surface waves (MASW) technique. The field investigation demonstrated that the surficial material-based system was not sufficient for 66% of the field sites and in-situ velocity information from at least two methods should be considered for improved classification. The geophysical work discussed here represents the first field de-rived VS30 values for Hartford County, CT.Presentation Date: Tuesday, October 16, 2018Start Time: 8:30:00 AMLocation: 204A (Anaheim Convention Center)Presentation Type: OralKeywords: surface wave, passive imaging, earthquake, near surface, shear wave (S-wave)Permalink: https://doi.org/10.1190/segam2018-2996137.1FiguresReferencesRelatedDetails SEG Technical Program Expanded Abstracts 2018ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2018 Pages: 5520 publication data© 2018 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 27 Aug 2018 CITATION INFORMATION Sarah L. C. Morton, John W. Lane Jr., Margaret A. Thomas, and Lanbo Liu, (2018), Seismic hazard classifications and VS30 in Connecticut using MASW and HVSR methods, SEG Technical Program Expanded Abstracts : 2521-2525. https://doi.org/10.1190/segam2018-2996137.1 Plain-Language Summary Keywordssurface wavepassive imagingearthquakenear surfaceshear wave (S-wave)PDF DownloadLoading ..." @default.
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