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High-resolution seismic imaging data from the West Napa Fault Zone acquired in 2015 at Hendry Winery, Napa, California
In February 2015, the U.S. Geological Survey conducted a high-resolution seismic survey across the West Napa Fault zone at Hendry Winery in Napa, California (Fig. 1). Geophones were deployed every 3 to 5 meters along a southwest-northeast trend to create an approximately 400-m-long linear array. Data were recorded by two Geometrics Stratavisor NZ-60TM seismographs. Both P-wave and S-wave seismic energy was generated at shotpoints located in-line with the recording array, with approximately 1 meter lateral spacing of shotpoints from each geophone. P-wave seismic sources consisted primarily of shots from a Betsy SeisgunTM, while for the northeast one-third of the array, P-wave sources were generated by vertical strikes of a sledgehammer on a steel plate. S-wave sources were generated by horizontal strikes on both sides of an aluminum block that was anchored to the ground. Fault-zone-guided-wave energy was generated by detonating small explosive charges in shallow boreholes within mapped traces of the West Napa Fault zone. All data was recorded by 120 vertical-component or single-component horizontal geophones. Each seismograph created a separate SEG-2-formatted data record (SEG Engineering and Groundwater Geophysics Committee, 1990) for each shot. Data records from both seismographs were combined to form a single shot gather containing all channels in the recording array.
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Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Mark R Goldman", "@type": "vcard:Contact", "hasEmail": "mailto:goldman@usgs.gov" } |
| description | In February 2015, the U.S. Geological Survey conducted a high-resolution seismic survey across the West Napa Fault zone at Hendry Winery in Napa, California (Fig. 1). Geophones were deployed every 3 to 5 meters along a southwest-northeast trend to create an approximately 400-m-long linear array. Data were recorded by two Geometrics Stratavisor NZ-60TM seismographs. Both P-wave and S-wave seismic energy was generated at shotpoints located in-line with the recording array, with approximately 1 meter lateral spacing of shotpoints from each geophone. P-wave seismic sources consisted primarily of shots from a Betsy SeisgunTM, while for the northeast one-third of the array, P-wave sources were generated by vertical strikes of a sledgehammer on a steel plate. S-wave sources were generated by horizontal strikes on both sides of an aluminum block that was anchored to the ground. Fault-zone-guided-wave energy was generated by detonating small explosive charges in shallow boreholes within mapped traces of the West Napa Fault zone. All data was recorded by 120 vertical-component or single-component horizontal geophones. Each seismograph created a separate SEG-2-formatted data record (SEG Engineering and Groundwater Geophysics Committee, 1990) for each shot. Data records from both seismographs were combined to form a single shot gather containing all channels in the recording array. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P1KCNSYP", "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.67de0c42d34eae450ac1cb3b.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_67de0c42d34eae450ac1cb3b |
| keyword |
[ "USGS:67de0c42d34eae450ac1cb3b", "earthquakes", "faulting (geologic)", "hazards", "seismic methods", "seismic reflection methods", "seismic refraction methods", "seismology" ] |
| modified | 2025-08-14T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -122.347000, 38.318000, -122.340000, 38.325000 |
| theme |
[ "geospatial" ] |
| title | High-resolution seismic imaging data from the West Napa Fault Zone acquired in 2015 at Hendry Winery, Napa, California |
