Originator: Ray W. Sliter
Originator: James E. Conrad
Originator: Holly F. Ryan
Originator: Peter J. Triezenberg
Minisparker seismic-reflection data collected offshore of San Diego and Los Angeles Counties, southern California, from 2011-06-08 to 2011-06-22 (USGS field activity S-7-11-SC)
Geospatial_Data_Presentation_Form: minisparker seismic-reflection data in SEG-Y format
Series_Name: data release
Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
This dataset includes raw and processed, high-resolution seismic-reflection data collected in 2011 to collect information on active offshore faults. The survey area is offshore southern California between Long Beach and San Diego. The data were collected aboard the U.S. Geological Survey R/V Parke Snavely. The seismic-reflection data were acquired using a SIG 2mille minisparker system. Subbottom acoustic penetration spanned tens to several hundreds of meters, variable by location and equipment type.
The U.S. Geological Survey (USGS) collected high-resolution seismic-reflection in June 2011, between Long Beach and San Diego, southern California. The survey was designed to image faults and folds associated with movement on the numerous faults offshore southern California, including the Newport-Inglewood, Palos Verdes, Coronado Bank, San Pedro Basin, San Diego Trough, and several other unnamed fault zones. This data can be used to update the USGS Quaternary fault database and in shaking hazard models developed by the Working Group for California Earthquake probabilities. This work was funded by the USGS Coastal and Marine Catastrophic Hazards Project. Data were collected aboard the USGS R/V Parke Snavely. Approximately 331 km of single-channel seismic-reflection data were acquired, mainly using a SIG 2mille minisparker. About 204 km of data were collected simultaneously using an EdgeTech Chirp 512 [DOI:10.5066/F7X63K3K]. Subbottom acoustic penetration spanned tens to several hundreds of meters, variable by location. This dataset also includes navigation files of the surveyed transects. The images of bedrock, sediment deposits and tectonic structure provide geologic information that is essential to hazard assessment, regional sediment management and coastal and marine spatial planning at Federal, State and local levels, as well as to future research on the geomorphic, sedimentary, tectonic and climatic record of Southern California.
Additional information about the field activity from which these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=S0711SC
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Currentness_Reference: ground condition at the time the data were collected
Maintenance_and_Update_Frequency: As needed
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD)
Theme_Keyword: Continental Margins
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: sub-bottom profiling
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: seismic reflection profiling
Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Bathymetry and Elevation
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: Pacific Coastal and Marine Science Center
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Pacific Ocean
Place_Keyword: State of California
Place_Keyword: San Diego County
Place_Keyword: Los Angeles County
Place_Keyword: Long Beach
Place_Keyword: San Diego
USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator(s) of the dataset and in products derived from these data.
Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
This information is not intended for navigational purposes.
Native_Data_Set_Environment: SEG-Y Rev 1
Contact_Person: PCMSC Science Data Coordinator
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz