Maureen A Walton

Cascadia subduction zone database: compilation of published datasets relevant to Cascadia subduction zone earthquake hazards and tectonics (2022)

In this database, we compile and host several available onshore and offshore geologic, paleoseismic, geophysical, and instrumental datasets along the Cascadia subduction zone. The ScienceBase data release and downloadable map package is accompanied by an ArcGIS online map and StoryMap.

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geomorphology, Geophysics, Marine Geology, Remote Sensing, Sedimentology, All tags... Seismology, Stratigraphy, Structural Geology, USGS Science Data Catalog (SDC), geology, geophysics, Fewer tags

High-resolution multichannel minisparker, multichannel boomer and chirp seismic-reflection data were collected by the U.S. Geological Survey and the University of Washington in February of 2017 west of Seattle in Puget Sound and in Lake Washington, Washington. Data were collected aboard University of Washington’s R/V Clifford A. Barnes during USGS field activity 2017-612-FA. Sub-bottom acoustic penetration spans several hundreds of meters and is variable by location. Data were collected to characterize recent deformation and estimate earthquake recurrence on the Seattle Fault zone. These data and information are intended for science researchers, students from elementary through college, policy makers, and general...

Tags: Geophysics, Marine Geology, Seismology

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

Chirp sub-bottom data of USGS field activity 2017-612-FA collected in Puget Sound and Lake Washington, Washington in February of 2017

High-resolution chirp sub-bottom data were collected by the U.S. Geological Survey and the University of Washington in February of 2017 west of Seattle in Puget Sound and in Lake Washington, Washington. Data were collected aboard the University of Washington’s R/V Clifford A. Barnes during USGS field activity 2017-612-FA using an Edgetech SB-512i sub-bottom profiler. Sub-bottom acoustic penetration spans several tens of meters and is variable by location.

Tags: Baby Island, Bainbridge Island, Ballard, Bellevue, Blake Island, All tags... CMHRP, Camano Island, Clinton, Coastal and Marine Hazards and Resources Program, Colby, Distributions, Edmonds, Freeland, Gedney Island, Greenbank, Harbor Island, Lake Washington, Lake Washington, Manchester, Mercer Island, Mukilteo, Ohlers Island, PCMSC, Pacific Coastal and Marine Science Center, Puget Sound, Puget Sound, State of Washington, Substrate, U.S. Geological Survey, USGS, Vashon Island, West Seattle, Whidbey Island, acoustic methods, geophysics, geoscientificinformation, geospatial datasets, mapping, marine geophysics, oceans, seabed, seismic reflection profiling, sub-bottom profiling, Fewer tags

Multichannel boomer data of USGS field activity 2017-612-FA collected in Lake Washington, Washington in February of 2017

High-resolution multichannel boomer seismic-reflection data were collected by the U.S. Geological Survey and the University of Washington in February of 2017 east of Seattle in Lake Washington, Washington. Data were collected aboard University of Washington’s R/V Clifford A. Barnes during USGS field activity 2017-612-FA using an Applied Acoustics triple plate S-Boom sound source and recorded on a 24 channel Geometrics digital hydrophone streamer. Sub-bottom acoustic penetration spans several hundreds of meters and is variable by location.

Tags: Bellevue, CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, Edmonds, All tags... Lake Washington, Lake Washington, Mercer Island, Ohlers Island, PCMSC, Pacific Coastal and Marine Science Center, Seattle, State of Washington, Substrate, U.S. Geological Survey, USGS, acoustic methods, geophysics, geoscientificinformation, geospatial datasets, mapping, marine geophysics, oceans, seabed, seismic reflection profiling, sub-bottom profiling, Fewer tags