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Minisparker and chirp seismic-reflection data of field activity 2014-645-FA collected in the outer Santa Barbara Channel, California, between 2014-11-12 to 2014-11-25 (ver. 2.0, March 2020) The U.S. Geological Survey (USGS) collected high-resolution multichannel sparker, minisparker and chirp seismic-reflection data in November 2014, from offshore Catalina and Santa Cruz basins. The survey was designed to image faults and folds associated with movement on the faults in offshore southern California, including the Catalina, Catalina Ridge, San Clemente, and San Diego Trough faults. Data were collected aboard the Scripps Institution of Oceanography R/V Robert Gordon Sproul. Subbottom acoustic penetration spans several hundred meters and is variable by location. This data release contains processed digital SEG-Y. The seismic-reflection profiles of bedrock, sediment deposits and tectonic structure provide... Categories: Data, Data Release - Revised; Tags: Geophysics Multichannel minisparker and chirp seismic-reflection data of field activity 2015-651-FA; Chatham Strait and Cross Sound, southeastern Alaska from 2015-08-03 to 2015-08-21 High-resolution multichannel minisparker and chirp seismic-reflection data were collected in August of 2015 to explore marine geologic hazards of inland waterways of southeastern Alaska. Sub-bottom profiles were acquired in the inland waters between Glacier Bay and Juneau, including Cross Sound and Chatham Strait. High-resolution seismic-reflection profiles were acquired to assess evidence for active seabed faulting and submarine landslide hazards. The data were collected aboard the U.S. Geological Survey R/V Alaskan Gyre. Chirp data were acquired using a tow-fish Edgetech 512 chirp subbottom profiler, and multichannel (mcs) minisparker data were acquired using a 500-Joule minisparker source and a 48-channel Geometrics... Categories: Data; Tags: Geophysics Name, location, and length of sediment cores collected in 2009 offshore from Palos Verdes, California This part of the data release is a spreadsheet including the name, location, and length of sediment cores collected in 2009 offshore from Palos Verdes, California. It is one of seven files included in this U.S. Geological Survey data release that include data from a set of sediment cores acquired from the continental slope, offshore Los Angeles and the Palos Verdes Peninsula, adjacent to the Palos Verdes Fault. Gravity cores were collected by the USGS in 2009 (cruise ID S-I2-09-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=SI209SC), and vibracores were collected with the Monterey Bay Aquarium Research Institute’s remotely operated vehicle (ROV) Doc Ricketts in 2010 (cruise ID W-1-10-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=W110SC).... Categories: Data; Tags: Distributions, Holocene, Los Angeles, Palos Verdes Peninsula, Pleistocene, All tags... Quaternary, San Gabriel Canyon, Substrate, geoscientificInformation, gravity coring, ocean processes, oceans, sediment, sediment composition, sediment transport, sediment transport, sedimentation, Fewer tags Landslides offshore of southern California, 2023 Landslides have been mapped offshore of Southern California. Polygons were mapped from visual interpretation of high-resolution multibeam echosounder data (MBES), single-beam echosounder data, and seismic reflection data. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, PCMSC, Pacific Coastal and Marine Science Center, All tags... Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, landslides, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, Fewer tags Digital maps of submarine landslides and mass wasting features offshore of southern California This data release provides the locations and certain key metrics of landslide features offshore southern California, including landslide perimeters, scarps, evacuation zones, debris aprons, and slide-prone areas in geographic information system (GIS) shapefile format. The offshore region of southern California is a tectonically active area that includes more than 20 fault-bounded basins and ridges that are subject to various types of mass-wasting and landslide processes. The collection of high-resolution seafloor mapping data offshore southern California, mostly within the last 25 years, provide a new data set that forms the basis for the identification and mapping of landslides and slide-related features throughout... Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, Geomorphology, Geophysics, All tags... Marine Geology, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, landslides, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, Fewer tags Landslide evacuation zones offshore of Southern California, 2023 Landslide evacuation zones, which represent the areas from which material is removed by landslide processes, have been mapped offshore of Southern California. Polygons were mapped from visual interpretation of high-resolution multibeam echosounder data (MBES) and single-beam echosounder data. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, PCMSC, Pacific Coastal and Marine Science Center, All tags... Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, landslides, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, Fewer tags Landslide scarps offshore of Southern California, 2023 Landslide scarp features have been mapped offshore of Southern California. Polygons were mapped from visual interpretation of high-resolution multibeam echosounder data (MBES) and single-beam echosounder data. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, PCMSC, Pacific Coastal and Marine Science Center, All tags... Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, landslides, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, Fewer tags Multibeam bathymetry and acoustic-backscatter data collected in 2016 in Catalina Basin, southern California and merged multibeam bathymetry datasets of the northern portion of the Southern California Continental Borderland In February 2016 the University of Washington in cooperation with the U.S. Geological Survey, Pacific Coastal and Marine Science Center (USGS, PCMSC) collected multibeam bathymetry and acoustic-backscatter data in and near the Catalina Basin, southern California aboard the University of Washington's Research Vessel Thomas G. Thompson. Data was collected using a Kongsberg EM300 multibeam echosounder hull-mounted to the 274-foot R/V Thomas G. Thompson. The USGS, PCMSC processed these data and produced a series of bathymetric surfaces and acoustic-backscatter images for scientific research purposes. This data release provides a 10-m resolution bathymetry surface and a 10-m resolution acoustic backscatter image. In... Categories: Data; Types: Citation; Tags: Bathymetry, Bathymetry, Bathymetry and Elevation, CMGP, Catalina Basin, All tags... Geology, Geomorphology, Geophysics, Marine Geology, Multibeam sonar, Pacific, Pacific Coastal and Marine Science Center, Seafloor Topography, U.S. Geological Survey, USGS, environment, geoscientificInformation, imageryBaseMapsEarthCover, inlandWaters, sea-floor acoustic reflectivity, Fewer tags Multi-Sensor Core Logger (MSCL) P-wave velocity, gamma-ray density, and magnetic susceptibility whole-core logs of sediment cores collected in 2009 offshore from Palos Verdes, California This part of the data release includes Multi-Sensor Core Logger (MSCL) P-wave velocity, gamma-ray density, and magnetic susceptibility whole-core logs of sediment cores collected in 2009 offshore of Palos Verdes, California. It is one of seven files included in this U.S. Geological Survey data release that include data from a set of sediment cores acquired from the continental slope, offshore Los Angeles and the Palos Verdes Peninsula, adjacent to the Palos Verdes Fault. Gravity cores were collected by the USGS in 2009 (cruise ID S-I2-09-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=SI209SC), and vibracores were collected with the Monterey Bay Aquarium Research Institute's remotely operated vehicle (ROV) Doc... Categories: Data; Tags: Distributions, Holocene, Los Angeles, Palos Verdes Peninsula, Pleistocene, All tags... Quaternary, San Gabriel Canyon, Substrate, geoscientificInformation, gravity coring, ocean processes, oceans, sediment, sediment composition, sediment transport, sediment transport, sedimentation, Fewer tags Multibeam acoustic-backscatter data collected in 2016 in Catalina Basin, Southern California In February 2016 the University of Washington in cooperation with the U.S. Geological Survey, Pacific Coastal and Marine Science Center (USGS, PCMSC) collected multibeam bathymetry and acoustic backscatter data in Catalina Basin aboard the University of Washington's Research Vessel Thomas G. Thompson. Data was collected using a Kongsberg EM300 multibeam echosounder hull-mounted to the 274-foot R/V Thomas G. Thompson. The USGS, PCMSC processed these data and produced a series of bathymetric surfaces and acoustic-backscatter images for scientific research purposes. This data release page provides a 10-m resolution acoustic-backscatter image as well as FGDC metadata describing these data. Categories: Data; Types: Citation; Tags: Bathymetry, Bathymetry, Bathymetry and Elevation, CMGP, Catalina Basin, All tags... Geology, Geophysics, Multibeam sonar, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Seafloor Topography, U.S. Geological Survey, USGS, environment, geoscientificInformation, imageryBaseMapsEarthCover, sea-floor acoustic reflectivity, seafloor, Fewer tags Quaternary faults offshore of California A comprehensive map of Quaternary faults has been generated for offshore of California. The Quaternary fault map includes mapped geometries and attribute information for offshore fault systems located in California State and Federal waters. The polyline shapefile and matching KML file have been compiled from previously published mapping where relatively dense, high-resolution marine geophysical data exist. The data are accompanied by a PDF containing citations for the compiled source data. Most of the marine geophysical data used for mapping have been processed, merged, and released by the USGS in maps, data releases, and journal publications in support of the California Seafloor Mapping Program and the U.S. West... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, Geophysics, Marine Geology, All tags... PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, earthquake prediction, earthquakes, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, seismic methods, Fewer tags Chirp seismic-reflection data of USGS field activity 2014-645-FA collected in the outer Santa Barbara Channel, California, between 2014-11-12 to 2014-11-25 (ver. 2.0, March 2020) This data release contains 43 chirp sub-bottom profiles that were collected in November of 2014 from the Catalina and Santa Cruz Basins offshore southern California by the U.S. Geological Survey Pacific and Coastal Marine Science Center. Data were collected aboard the University of California’s R/V Robert Gordon Sproul on USGS cruise 2014-645-FA. Chirp profiles were collected to assess earthquake and submarine landslide hazards offshore southern California. Categories: Data; Types: Citation; Tags: Avalon, Bathymetry and Elevation, CMHRP, Catalina Basin, Catalina Canyon, All tags... Catalina Escarpment, City of Encinitas, City of Huntington Beach, City of Long Beach, City of San Diego, City of Ventura, Coastal and Marine Hazards and Resources Program, Emery Knoll, Gulf of Santa Catalina, Hueneme Canyon, Osborn Bank, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, San Clemente Island, San Nicolas Island, Sant Barbara Island, Santa Barbara Channel, Santa Barbara County, Santa Catalina Island, Santa Cruz Basin, Santa Cruz Canyon, Santa Cruz Island, Santa Monica Basin, Santa Rosa Island, State of California, Two Harbors, U.S. Geological Survey, USGS, Ventura County, continental margins, geoscientificInformation, geospatial datasets, marine geophysics, minisparker, oceans, seismic reflection profiling, seismic reflection profiling, Fewer tags Landslide mass-wasting zones offshore of Southern California, 2023 Landslide mass-wasting zones have been mapped offshore of Southern California. Polygons were mapped from visual interpretation of high-resolution multibeam echosounder data (MBES) and single-beam echosounder data. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, PCMSC, Pacific Coastal and Marine Science Center, All tags... Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, landslides, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, Fewer tags Multichannel sparker and minisparker seismic-reflection data of USGS field activity 2014-645-FA collected in the outer Santa Barbara Channel, California, between 2014-11-12 to 2014-11-25 (ver. 2.0, March 2020) This data release contains 35 multichannel sparker and 24 multichannel minisparker seismic reflection (MCS) profiles that were collected in November of 2014 from the Catalina and Santa Cruz Basins offshore southern California by the U.S. Geological Survey Pacific and Coastal Marine Science Center. Data were collected aboard the University of California’s R/V Robert Gordon Sproul on USGS cruise 2014-645-FA. MCS profiles were collected to assess earthquake and submarine landslide hazards offshore southern California. Categories: Data; Types: Citation; Tags: Avalon, Bathymetry and Elevation, CMHRP, Catalina Basin, Catalina Canyon, All tags... Catalina Escarpment, City of Encinitas, City of Huntington Beach, City of Long Beach, City of San Diego, City of Ventura, Coastal and Marine Hazards and Resources Program, Emery Knoll, Gulf of Santa Catalina, Hueneme Canyon, Osborn Bank, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, San Clemente Island, San Nicolas Island, Sant Barbara Island, Santa Barbara Channel, Santa Barbara County, Santa Catalina Island, Santa Cruz Basin, Santa Cruz Canyon, Santa Cruz Island, Santa Monica Basin, Santa Rosa Island, State of California, Two Harbors, U.S. Geological Survey, USGS, Ventura County, continental margins, geoscientificInformation, geospatial datasets, marine geophysics, minisparker, oceans, seismic reflection profiling, seismic reflection profiling, Fewer tags Multichannel minisparker seismic-reflection data of field activity 2015-651-FA; Chatham Strait and Cross Sound, southeastern Alaska from 2015-08-03 to 2015-08-21 This data release contains high-resolution multichannel seismic (MCS) reflection data collected in August of 2015 to explore marine geologic hazards of inland waterways of southeastern Alaska. Sub-bottom profiles were acquired in the inland waters between Glacier Bay and Juneau, including Cross Sound and Chatham Strait. High-resolution seismic-reflection profiles were acquired to assess evidence for active seabed faulting and submarine landslide hazards. The data were collected aboard the US Geological Survey R/V Alaskan Gyre. The seismic-reflection data were acquired using a 500-Joule minisparker source and a 48-channel Geometrics GeoEel digital streamer. Subbottom acoustic penetration spans up to several hundreds... Categories: Data; Types: Citation; Tags: Bathymetry, Bathymetry and Elevation, CMG, CMGP, Chatham Strait, All tags... Coastal and Marine Geology Program, Continental Margins, Cross Sound, Glacier Bay, Juneau, Lynn Canal, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, State of Alaska, U.S. Geological Survey, USGS, geoscientificInformation, minisparker, oceans, seismic reflection profiling, sub-bottom profiling, Fewer tags Landslide debris aprons offshore of southern California, 2023 Landslide debris aprons have been mapped offshore of Southern California. Polygons were mapped from visual interpretation of high-resolution multibeam echosounder data (MBES), single-beam echosounder data, and seismic reflection data. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, PCMSC, Pacific Coastal and Marine Science Center, All tags... Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, landslides, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, Fewer tags Radiocarbon sample data and calibrated ages of sediment core collected in 2009 offshore from Palos Verdes, California This part of the data release is a spreadsheet including radiocarbon sample information and calibrated ages of sediment cores collected in 2009 offshore of Palos Verdes, California. It is one of seven files included in this U.S. Geological Survey data release that include data from a set of sediment cores acquired from the continental slope, offshore Los Angeles and the Palos Verdes Peninsula, adjacent to the Palos Verdes Fault. Gravity cores were collected by the USGS in 2009 (cruise ID S-I2-09-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=SI209SC), and vibracores were collected with the Monterey Bay Aquarium Research Institute's remotely operated vehicle (ROV) Doc Ricketts in 2010 (cruise ID W-1-10-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=W110SC).... Categories: Data; Tags: Distributions, Holocene, Los Angeles, Palos Verdes Peninsula, Pleistocene, All tags... Quaternary, San Gabriel Canyon, Substrate, geoscientificInformation, gravity coring, ocean processes, oceans, sediment, sediment composition, sediment transport, sediment transport, sedimentation, Fewer tags Sediment core data from offshore Palos Verdes, California The seven files included in this U.S. Geological Survey data release are data from a set of sediment cores acquired from the continental slope, offshore Los Angeles and the Palos Verdes Peninsula, adjacent to the Palos Verdes Fault. Gravity cores were collected by the USGS in 2009 (cruise ID S-I2-09-SC), and vibracores were collected with the Monterey Bay Aquarium Research Institute's remotely operated vehicle (ROV) Doc Ricketts in 2010 (cruise ID W-1-10-SC). One spreadsheet (PalosVerdesCores_Info.xlsx) contains core name, location, and length. One spreadsheet (PalosVerdesCores_MSCLdata.xlsx) contains Multi-Sensor Core Logger P-wave velocity, gamma-ray density, and magnetic susceptibility whole-core logs. One zipped... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CMG, CMGP, Coastal and Marine Geology Program, Los Angeles, PCMSC, All tags... Pacific Coastal and Marine Science Center, Palos Verdes Peninsula, U.S. Geological Survey, USGS, data release, Fewer tags Radiocarbon age dating of biological material from cores collected off British Columbia, Canada and southeastern Alaska, U.S. along the Queen Charlotte-Fairweather fault zone Results of radiocarbon age dating of planktic foraminifera, benthic foraminifera, and pelecypod shell fragments collected from piston cores, trigger weight cores, and IKU grab samples obtained in 2015 and 2017 offshore British Columbia, Canada and southeastern Alaska, U.S. along the Queen Charlotte-Fairweather fault zone. Categories: Data; Tags: British Columbia, CMHRP, Canada, Coastal and Marine Hazards and Resources Program, Dixon Entrance, All tags... Habitat, Marine Geology, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, State of Alaska, Stratigraphy, U.S. Geological Survey, USGS, animals, benthic foraminifera, carbon-14 analysis, chemical analysis, chemical oceanography, environment, foraminifera, fragile ecosystems, geochemistry, geoscientificInformation, invertebrates, marine chemistry, mollusks, oceans, organisms, planktic foraminifera, protists, radiometric dating, Fewer tags Chirp seismic-reflection data of field activity 2015-651-FA; Chatham Strait and Cross Sound, southeastern Alaska from 2015-08-03 to 2015-08-21 This data release contains high-resolution seismic reflection data collected in August of 2015 to explore marine geologic hazards of inland waterways of southeastern Alaska. Sub-bottom profiles were acquired in the inland waters between Glacier Bay and Juneau, including Cross Sound and Chatham Strait. High-resolution seismic-reflection profiles were acquired to assess evidence for active seabed faulting and submarine landslide hazards. The data were collected aboard the US Geological Survey R/V Alaskan Gyre. The seismic-reflection data were acquired using a tow-fish Edgetech 512 chirp subbottom profiler. Subbottom acoustic penetration spans up to several tens of meters, and is variable by location. This data release... Categories: Data; Types: Citation; Tags: Bathymetry, Bathymetry and Elevation, CMG, CMGP, Chatham Strait, All tags... Coastal and Marine Geology Program, Continental Margins, Cross Sound, Glacier Bay, Juneau, Lynn Canal, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, State of Alaska, U.S. Geological Survey, USGS, chirp, geoscientificInformation, oceans, seismic reflection profiling, sub-bottom profiling, Fewer tags