Multichannel seismic-reflection data acquired off the coast of southern California - Part A 1997, 1998, 1999, and 2000
Multichannel seismic-reflection (MCS) data were collected in the California Continental
Borderland as part of southern California Earthquake Hazards Task. Five data acquisition
cruises conducted over a six-year span collected MCS data from offshore Santa Barbara,
California south to the Exclusive Economic Zone boundary with Mexico. The primary mission
was to map late Quaternary deformation as well as identify and characterize fault zones that
have potential to impact high population areas of southern California. To meet its objectives,
the project work focused on the distribution, character, and relative intensity of active
(i.e., Holocene) deformation along the continental shelf and basins adjacent to the most highly
populated areas. In addition, the project examined the Pliocene-Pleistocene record of how
deformation shifted in space and time to help identify actively deforming structures that
may constitute current significant seismic hazards.
The MCS data accessible through this report cover the first four years of survey activity and
include data from offshore Malibu coastal area west of Santa Monica, California to the southern
survey limit offshore San Diego. The MCS data, which were collected with a 250-m-long, 24-channel
streamer used a small gas-injector airgun source. This system provided optimum resolution of
the upper 1 to 2 km of sediment for mapping active fault systems. The report includes trackline
maps showing the location of the data, as well as both digital data files (SEG-Y) and images
of all of the profiles.
These data are also available via GeoMapApp (http://www.geomapapp.org/) and Virtual Ocean ( http://www.virtualocean.org/) earth science exploration and visualization applications.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "PCMSC Science Data Coordinator",
"@type": "vcard:Contact",
"hasEmail": "mailto:pcmsc_data@usgs.gov"
}
|
| description | Multichannel seismic-reflection (MCS) data were collected in the California Continental Borderland as part of southern California Earthquake Hazards Task. Five data acquisition cruises conducted over a six-year span collected MCS data from offshore Santa Barbara, California south to the Exclusive Economic Zone boundary with Mexico. The primary mission was to map late Quaternary deformation as well as identify and characterize fault zones that have potential to impact high population areas of southern California. To meet its objectives, the project work focused on the distribution, character, and relative intensity of active (i.e., Holocene) deformation along the continental shelf and basins adjacent to the most highly populated areas. In addition, the project examined the Pliocene-Pleistocene record of how deformation shifted in space and time to help identify actively deforming structures that may constitute current significant seismic hazards. The MCS data accessible through this report cover the first four years of survey activity and include data from offshore Malibu coastal area west of Santa Monica, California to the southern survey limit offshore San Diego. The MCS data, which were collected with a 250-m-long, 24-channel streamer used a small gas-injector airgun source. This system provided optimum resolution of the upper 1 to 2 km of sediment for mapping active fault systems. The report includes trackline maps showing the location of the data, as well as both digital data files (SEG-Y) and images of all of the profiles. These data are also available via GeoMapApp (http://www.geomapapp.org/) and Virtual Ocean ( http://www.virtualocean.org/) earth science exploration and visualization applications. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://pubs.usgs.gov/of/2005/1084/",
"mediaType": "application/http",
"description": "Landing page for access to the data"
},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
"mediaType": "text/xml",
"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.3c5c8b00-7131-4743-ac7a-f1bf7856f5a8.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_3c5c8b00-7131-4743-ac7a-f1bf7856f5a8 |
| keyword |
[
"Continental Borderland",
"Dana Point",
"Holocene",
"Instrument Keywords > AIRGUN ARRAYS",
"Instrument Keywords > GEOPHONES",
"Instrument Keywords > HYDROPHONES",
"Instrument Keywords > SEISMIC REFLECTION PROFILERS",
"Los Angeles",
"Pacific Ocean",
"Parameters Keywords > OCEANS > MARINE SEDIMENTS > STRATIGRAPHIC SEQUENCE",
"Parameters Keywords > SOLID EARTH > ROCKS/MINERALS > SEDIMENTS",
"Parameters Keywords > SOLID EARTH > SEISMOLOGY > SEISMIC PROFILE",
"Platform Keywords > SHIPS",
"Point Dume",
"Quaternary",
"San Diego",
"Santa Monica Bay",
"Southern California",
"State of California",
"USA",
"USGS:3c5c8b00-7131-4743-ac7a-f1bf7856f5a8",
"active fault",
"airgun",
"deformation",
"digital data",
"distributions",
"earthquake hazards",
"fault zone",
"hazards",
"marine geology",
"marine geophysics",
"multichannel",
"profiles",
"sediment deformation",
"seismic data",
"seismic reflection",
"seismic reflection methods",
"seismic reflection profiling",
"sub-bottom profiling",
"substrate",
"tsunamis"
]
|
| modified | 2020-10-19T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -119.00000, +32.50000, -117.00000, +34.16667 |
| theme |
[
"Geospatial"
]
|
| title | Multichannel seismic-reflection data acquired off the coast of southern California - Part A 1997, 1998, 1999, and 2000 |
