Science crew aboard R/V Marcus G. Langseth. Ray Sliter (Pacific Coastal and Marine Science Center) and Deb Hutchison (Woods Hole Coastal and Marine Science Center) shown at far left.
Ray Sliter (Former Employee)
Science and Products
Coastal and Marine Geohazards of the U.S. West Coast and Alaska
Coastal and marine geohazards are sudden and extreme events beneath the ocean that threaten coastal populations. These underwater hazards include earthquakes, volcanic eruptions, landslides, and tsunamis. The tectonically active west coast of the Americas is prone to such hazards, as it lies along the boundaries of major tectonic plates that make up the Earth's crust—the North American, Caribbean...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, 3-D CT Core Imaging Laboratory, Core Preparation and Analysis Laboratory and Sample Repositories, Big Sur Landslides, Deep Sea Exploration, Mapping and Characterization, Subduction Zone Science
California Sand Resource Assessment Project
The USGS is working in partnership with the Bureau of Ocean Energy Management (BOEM) and the State of California Ocean Protection Council (OPC) to evaluate sand and gravel resources in Federal and State waters for potential use in future beach nourishment projects. Prior to the leasing and development of outer continental shelf (OCS) sand resources for use in beach restoration or coastal...
Tsunami Hazards in the Santa Barbara Channel
Information about the USGS Pacific Coastal and Marine Science Center's study of tsunami hazards in the Santa Barbara Channel from 1993-2003.
Filter Total Items: 34
Sediment Thickness Data in the Deep-Sea Basins of the Bering Sea Sediment Thickness Data in the Deep-Sea Basins of the Bering Sea
A raster grid of sediment thickness in GeoTIFF format (BeringSeaBasins-SedimentThicknessGrid.tif) of the Aleutian, Bowers, and Komandorsky Basins was created by merging GeoTIFF grids of the Aleutian and Bowers Basins and of the Komandorsky Basin, provided in other sections of this data release. The raster grid file, along with a corresponding CSDGM FGDC-compliant metadata file, is...
Minisparker and chirp seismic reflection data acquired offshore San Francisco and Pacifica during USGS field activity S-16-10-NC Minisparker and chirp seismic reflection data acquired offshore San Francisco and Pacifica during USGS field activity S-16-10-NC
Chirp sub-bottom and single-channel minisparker seismic reflection data were collected by the U.S. Geological Survey in August 2010, offshore San Mateo County, California. Data were collected aboard the R/V Snavely during field activity S-16-10-NC. This work was funded by the USGS Coastal and Marine Geology Program's Coastal and Marine Catastrophic Hazards project. The high-resolution...
High-resolution multichannel sparker seismic-reflection and chirp sub-bottom data acquired along the Cascadia margin during USGS field activity 2019-024-FA High-resolution multichannel sparker seismic-reflection and chirp sub-bottom data acquired along the Cascadia margin during USGS field activity 2019-024-FA
High-resolution multichannel sparker seismic (MCS) data and chirp sub-bottom data were collected by the U.S. Geological Survey in collaboration with the University of Washington (UW) in the summer of 2019 along the Cascadia submarine forearc offshore Oregon and Washington. Data were acquired to characterize quaternary deformation and sediment dynamics along the central and northern...
Reprocessed multichannel seismic reflection data acquired offshore Southern California during USGS field activity L-4-90-SC Reprocessed multichannel seismic reflection data acquired offshore Southern California during USGS field activity L-4-90-SC
Multichannel seismic (MCS) data were collected by the U.S. Geological Survey (USGS) in 1990 in the California Continental Borderland (USGS field activity L490SC). In 2021, these data were reprocessed to improve accuracy and resolvability of geologic structures and fault systems of California's continental margin. MCS data were acquired to support the Southern California Earthquake...
Reprocessed multichannel seismic reflection data acquired offshore Southern California during USGS field activity O-1-99-SC Reprocessed multichannel seismic reflection data acquired offshore Southern California during USGS field activity O-1-99-SC
Multichannel seismic (MCS) data were collected by the U.S. Geological Survey (USGS) in June of 1999 in the coastal zone and continental shelf between Los Angeles and San Diego, offshore California (USGS field activity O-1-99-SC). In 2021 these data were reprocessed to improve accuracy and resolvability of geologic structures and fault systems of California's continental margin.
Reprocessed legacy seismic-reflection data from USGS field activity B-1-72-SC collected offshore central and southern California Reprocessed legacy seismic-reflection data from USGS field activity B-1-72-SC collected offshore central and southern California
Seismic-reflection data were collected offshore central and southern California in 1972 aboard the USNS Bartlett (USGS Field Activity B-1-72-SC). In 2021 these legacy data were reprocessed to improve accuracy and geologic resolvability of Californias continental margin. The effort to rescue and reprocess these legacy seismic-reflection data profiles was supported by Pacific Gas and...
California State Waters Map Series: Offshore of Refugio Beach, California California State Waters Map Series: Offshore of Refugio Beach, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of...
California State Waters Map Series — Offshore of San Gregorio, California California State Waters Map Series — Offshore of San Gregorio, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California's State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
California State Waters Map Series: Offshore of Coal Oil Point, California California State Waters Map Series: Offshore of Coal Oil Point, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
California State Waters Map Series: offshore of Santa Barbara, California California State Waters Map Series: offshore of Santa Barbara, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
California State Waters Map Series: Offshore of Carpinteria, California California State Waters Map Series: Offshore of Carpinteria, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
California State Waters Map Series — Offshore of Ventura, California California State Waters Map Series — Offshore of Ventura, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
Science crew aboard R/V Marcus G. Langseth. Ray Sliter (Pacific Coastal and Marine Science Center) and Deb Hutchison (Woods Hole Coastal and Marine Science Center) shown at far left.
Filter Total Items: 36
Assessment of significant sand resources in Federal and California State Waters of the San Francisco, Oceanside, and Silver Strand littoral cell study areas along the continental shelf of California Assessment of significant sand resources in Federal and California State Waters of the San Francisco, Oceanside, and Silver Strand littoral cell study areas along the continental shelf of California
Executive Summary The Sand Resources Project was established through collaborative agreements between the U.S. Geological Survey (USGS), the Bureau of Ocean Energy Management (BOEM), and the California Ocean Protection Council (OPC) with the purpose of evaluating sand and gravel resources in Federal and California State Waters for potential use in future beach-nourishment projects...
Authors
Jonathan A. Warrick, James E. Conrad, Antoinette Papesh, Tom Lorenson, Ray Sliter
Compilation of existing data for sand resource studies in Federal and California State Waters of the San Francisco, Oceanside, and Silver Strand littoral cell study areas along the continental shelf of California—Strategy for field studies and sand resour Compilation of existing data for sand resource studies in Federal and California State Waters of the San Francisco, Oceanside, and Silver Strand littoral cell study areas along the continental shelf of California—Strategy for field studies and sand resour
Executive Summary The Sand Resources Project was established through collaborative agreements between the U.S. Geological Survey (USGS), the Bureau of Ocean Energy Management (BOEM), and the California Ocean Protection Council (OPC) with the purpose of evaluating sand and gravel resources in Federal and California State Waters for potential use in future beach-nourishment projects...
Authors
Jonathan A. Warrick, James E. Conrad, Antoinette Papesh, Tom Lorenson, Ray Sliter
Controls on sediment distribution in the coastal zone of the central California transform continental margin, USA Controls on sediment distribution in the coastal zone of the central California transform continental margin, USA
We use >10,000 km of high-resolution seismic-reflection data together with multibeam bathymetry to document complex and highly variable post-Last Glacial Maximum (LGM) sediment distribution and thickness in the coastal zone (~10 m isobath to 5.6 km offshore) along a ~800 km section of central California's transform continental margin. Sediment thickness ranges from 0 (seafloor bedrock)...
Authors
Samuel Y. Johnson, Jeffrey W. Beeson, Janet Watt, Ray Sliter, Antoinette Papesh
Right-lateral fault motion along the slope-basin transition, Gulf of Santa Catalina, southern California Right-lateral fault motion along the slope-basin transition, Gulf of Santa Catalina, southern California
An active fault system carrying a significant component of right-lateral strike-slip motion extends for ~60 km along the slope–basin transition, ~10 to 20 km offshore of the southern California coast from La Jolla to Dana Point. From south to north, this fault system includes the Carlsbad, San Onofre, and San Mateo fault zones. High-resolution single channel minisparker and chirp seismic
Authors
James Conrad, Daniel Brothers, Katherine Coble, Holly F. Ryan, Peter Dartnell, Ray Sliter
High-resolution seismic-reflection data from offshore northern California — Bolinas to Sea Ranch High-resolution seismic-reflection data from offshore northern California — Bolinas to Sea Ranch
The U.S. Geological Survey collected high-resolution seismic-reflection data in September 2009, on survey S-8-09-NC, offshore of northern California between Bolinas and Sea Ranch. The survey area spans about 125 km of California’s coast and extends around Point Reyes. Data were collected aboard the U.S. Geological Survey R/V Parke Snavely. Cumulatively, ~1,150 km of seismic-reflection...
Authors
Ray W. Sliter, Samuel Y. Johnson, John L. Chin, Parker Allwardt, Jeffrey Beeson, Peter J. Triezenberg
California State Waters Map Series — Offshore of Monterey, California California State Waters Map Series — Offshore of Monterey, California
Introduction In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection...
Authors
Samuel Y. Johnson, Peter Dartnell, Stephen R. Hartwell, Guy R. Cochrane, Nadine E. Golden, Janet Watt, Clifton W. Davenport, Rikk G. Kvitek, Mercedes D. Erdey, Lisa M. Krigsman, Ray W. Sliter, Katherine L. Maier
Science and Products
Coastal and Marine Geohazards of the U.S. West Coast and Alaska
Coastal and marine geohazards are sudden and extreme events beneath the ocean that threaten coastal populations. These underwater hazards include earthquakes, volcanic eruptions, landslides, and tsunamis. The tectonically active west coast of the Americas is prone to such hazards, as it lies along the boundaries of major tectonic plates that make up the Earth's crust—the North American, Caribbean...
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, 3-D CT Core Imaging Laboratory, Core Preparation and Analysis Laboratory and Sample Repositories, Big Sur Landslides, Deep Sea Exploration, Mapping and Characterization, Subduction Zone Science
California Sand Resource Assessment Project
The USGS is working in partnership with the Bureau of Ocean Energy Management (BOEM) and the State of California Ocean Protection Council (OPC) to evaluate sand and gravel resources in Federal and State waters for potential use in future beach nourishment projects. Prior to the leasing and development of outer continental shelf (OCS) sand resources for use in beach restoration or coastal...
Tsunami Hazards in the Santa Barbara Channel
Information about the USGS Pacific Coastal and Marine Science Center's study of tsunami hazards in the Santa Barbara Channel from 1993-2003.
Filter Total Items: 34
Sediment Thickness Data in the Deep-Sea Basins of the Bering Sea Sediment Thickness Data in the Deep-Sea Basins of the Bering Sea
A raster grid of sediment thickness in GeoTIFF format (BeringSeaBasins-SedimentThicknessGrid.tif) of the Aleutian, Bowers, and Komandorsky Basins was created by merging GeoTIFF grids of the Aleutian and Bowers Basins and of the Komandorsky Basin, provided in other sections of this data release. The raster grid file, along with a corresponding CSDGM FGDC-compliant metadata file, is...
Minisparker and chirp seismic reflection data acquired offshore San Francisco and Pacifica during USGS field activity S-16-10-NC Minisparker and chirp seismic reflection data acquired offshore San Francisco and Pacifica during USGS field activity S-16-10-NC
Chirp sub-bottom and single-channel minisparker seismic reflection data were collected by the U.S. Geological Survey in August 2010, offshore San Mateo County, California. Data were collected aboard the R/V Snavely during field activity S-16-10-NC. This work was funded by the USGS Coastal and Marine Geology Program's Coastal and Marine Catastrophic Hazards project. The high-resolution...
High-resolution multichannel sparker seismic-reflection and chirp sub-bottom data acquired along the Cascadia margin during USGS field activity 2019-024-FA High-resolution multichannel sparker seismic-reflection and chirp sub-bottom data acquired along the Cascadia margin during USGS field activity 2019-024-FA
High-resolution multichannel sparker seismic (MCS) data and chirp sub-bottom data were collected by the U.S. Geological Survey in collaboration with the University of Washington (UW) in the summer of 2019 along the Cascadia submarine forearc offshore Oregon and Washington. Data were acquired to characterize quaternary deformation and sediment dynamics along the central and northern...
Reprocessed multichannel seismic reflection data acquired offshore Southern California during USGS field activity L-4-90-SC Reprocessed multichannel seismic reflection data acquired offshore Southern California during USGS field activity L-4-90-SC
Multichannel seismic (MCS) data were collected by the U.S. Geological Survey (USGS) in 1990 in the California Continental Borderland (USGS field activity L490SC). In 2021, these data were reprocessed to improve accuracy and resolvability of geologic structures and fault systems of California's continental margin. MCS data were acquired to support the Southern California Earthquake...
Reprocessed multichannel seismic reflection data acquired offshore Southern California during USGS field activity O-1-99-SC Reprocessed multichannel seismic reflection data acquired offshore Southern California during USGS field activity O-1-99-SC
Multichannel seismic (MCS) data were collected by the U.S. Geological Survey (USGS) in June of 1999 in the coastal zone and continental shelf between Los Angeles and San Diego, offshore California (USGS field activity O-1-99-SC). In 2021 these data were reprocessed to improve accuracy and resolvability of geologic structures and fault systems of California's continental margin.
Reprocessed legacy seismic-reflection data from USGS field activity B-1-72-SC collected offshore central and southern California Reprocessed legacy seismic-reflection data from USGS field activity B-1-72-SC collected offshore central and southern California
Seismic-reflection data were collected offshore central and southern California in 1972 aboard the USNS Bartlett (USGS Field Activity B-1-72-SC). In 2021 these legacy data were reprocessed to improve accuracy and geologic resolvability of Californias continental margin. The effort to rescue and reprocess these legacy seismic-reflection data profiles was supported by Pacific Gas and...
California State Waters Map Series: Offshore of Refugio Beach, California California State Waters Map Series: Offshore of Refugio Beach, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of...
California State Waters Map Series — Offshore of San Gregorio, California California State Waters Map Series — Offshore of San Gregorio, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California's State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
California State Waters Map Series: Offshore of Coal Oil Point, California California State Waters Map Series: Offshore of Coal Oil Point, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
California State Waters Map Series: offshore of Santa Barbara, California California State Waters Map Series: offshore of Santa Barbara, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
California State Waters Map Series: Offshore of Carpinteria, California California State Waters Map Series: Offshore of Carpinteria, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
California State Waters Map Series — Offshore of Ventura, California California State Waters Map Series — Offshore of Ventura, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
Science crew aboard R/V Marcus G. Langseth.
Science crew aboard R/V Marcus G. Langseth. Ray Sliter (Pacific Coastal and Marine Science Center) and Deb Hutchison (Woods Hole Coastal and Marine Science Center) shown at far left.
Science crew aboard R/V Marcus G. Langseth. Ray Sliter (Pacific Coastal and Marine Science Center) and Deb Hutchison (Woods Hole Coastal and Marine Science Center) shown at far left.
Filter Total Items: 36
Assessment of significant sand resources in Federal and California State Waters of the San Francisco, Oceanside, and Silver Strand littoral cell study areas along the continental shelf of California Assessment of significant sand resources in Federal and California State Waters of the San Francisco, Oceanside, and Silver Strand littoral cell study areas along the continental shelf of California
Executive Summary The Sand Resources Project was established through collaborative agreements between the U.S. Geological Survey (USGS), the Bureau of Ocean Energy Management (BOEM), and the California Ocean Protection Council (OPC) with the purpose of evaluating sand and gravel resources in Federal and California State Waters for potential use in future beach-nourishment projects...
Authors
Jonathan A. Warrick, James E. Conrad, Antoinette Papesh, Tom Lorenson, Ray Sliter
Compilation of existing data for sand resource studies in Federal and California State Waters of the San Francisco, Oceanside, and Silver Strand littoral cell study areas along the continental shelf of California—Strategy for field studies and sand resour Compilation of existing data for sand resource studies in Federal and California State Waters of the San Francisco, Oceanside, and Silver Strand littoral cell study areas along the continental shelf of California—Strategy for field studies and sand resour
Executive Summary The Sand Resources Project was established through collaborative agreements between the U.S. Geological Survey (USGS), the Bureau of Ocean Energy Management (BOEM), and the California Ocean Protection Council (OPC) with the purpose of evaluating sand and gravel resources in Federal and California State Waters for potential use in future beach-nourishment projects...
Authors
Jonathan A. Warrick, James E. Conrad, Antoinette Papesh, Tom Lorenson, Ray Sliter
Controls on sediment distribution in the coastal zone of the central California transform continental margin, USA Controls on sediment distribution in the coastal zone of the central California transform continental margin, USA
We use >10,000 km of high-resolution seismic-reflection data together with multibeam bathymetry to document complex and highly variable post-Last Glacial Maximum (LGM) sediment distribution and thickness in the coastal zone (~10 m isobath to 5.6 km offshore) along a ~800 km section of central California's transform continental margin. Sediment thickness ranges from 0 (seafloor bedrock)...
Authors
Samuel Y. Johnson, Jeffrey W. Beeson, Janet Watt, Ray Sliter, Antoinette Papesh
Right-lateral fault motion along the slope-basin transition, Gulf of Santa Catalina, southern California Right-lateral fault motion along the slope-basin transition, Gulf of Santa Catalina, southern California
An active fault system carrying a significant component of right-lateral strike-slip motion extends for ~60 km along the slope–basin transition, ~10 to 20 km offshore of the southern California coast from La Jolla to Dana Point. From south to north, this fault system includes the Carlsbad, San Onofre, and San Mateo fault zones. High-resolution single channel minisparker and chirp seismic
Authors
James Conrad, Daniel Brothers, Katherine Coble, Holly F. Ryan, Peter Dartnell, Ray Sliter
High-resolution seismic-reflection data from offshore northern California — Bolinas to Sea Ranch High-resolution seismic-reflection data from offshore northern California — Bolinas to Sea Ranch
The U.S. Geological Survey collected high-resolution seismic-reflection data in September 2009, on survey S-8-09-NC, offshore of northern California between Bolinas and Sea Ranch. The survey area spans about 125 km of California’s coast and extends around Point Reyes. Data were collected aboard the U.S. Geological Survey R/V Parke Snavely. Cumulatively, ~1,150 km of seismic-reflection...
Authors
Ray W. Sliter, Samuel Y. Johnson, John L. Chin, Parker Allwardt, Jeffrey Beeson, Peter J. Triezenberg
California State Waters Map Series — Offshore of Monterey, California California State Waters Map Series — Offshore of Monterey, California
Introduction In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection...
Authors
Samuel Y. Johnson, Peter Dartnell, Stephen R. Hartwell, Guy R. Cochrane, Nadine E. Golden, Janet Watt, Clifton W. Davenport, Rikk G. Kvitek, Mercedes D. Erdey, Lisa M. Krigsman, Ray W. Sliter, Katherine L. Maier