{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Mark R Goldman", "hasEmail": "mailto:goldman@usgs.gov"}, "description": "In November 2016, the U.S. Geological Survey acquired high-resolution P- and S-wave seismic data across the surface trace of the West Napa Fault zone near Buhman Avenue in Napa, California. We acquired seismic reflection, refraction, and guided-wave data along a 117-m-long profile across the known surface rupture zone of the West Napa Fault zone.  To acquire the reflection and refraction data, we co-located shots and geophones, spaced every meter along the profile.  We used 118 SercelTM L40A P-wave (40-Hz vertical-component) geophones with a sensitivity of 22.34 volts/meter/second to record 118 P-wave shots.  We also used 118 SercelTM L28-LBH S-wave (4.5-Hz horizontal-component) geophones with a sensitivity of 31.3 volts/meter/second to record 118 S-wave shots. We generated P-wave data using a 2.5-kg sledgehammer and steel plate combination. S-wave sources were generated by horizontally striking an aluminum block with a 2.5-kg sledgehammer. We acquired fault-zone guided-wave data by generating P- and S-wave energy (2.5-kg sledgehammer and steel plate or aluminum block) approximately 44 and 55 m northwest of the P- and S-wave recording arrays. All data were recorded using two 60-channel Geometrics Stratavisor NX-60TM seismographs with a 24-bit analog-to-digital converter (Subcommittee of the SEG Engineering and Groundwater Geophysics Committee, 1990); the seismographs were connected to the P- and S-wave geophones via refraction cables. Each shot was recorded for two seconds, with data recording starting 100 ms before the actual time of the shot.  Data were recorded at a sampling rate of 0.5 ms, or 2000 samples per second. This report provides the metadata needed to utilize the seismic data.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P92UWULX", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5e59ddb5e4b01d50924ca238.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5e59ddb5e4b01d50924ca238", "keyword": ["Napa", "Northern California", "USGS:5e59ddb5e4b01d50924ca238", "earthquake hazards", "faulting (geologic)", "seismic reflection methods", "seismic refraction methods", "seismology"], "modified": "2020-08-18T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-122.339796, 38.280793, -122.338406, 38.281821", "theme": ["geospatial"], "title": "High-resolution seismic imaging of the West Napa Fault Zone at Buhman Avenue, Napa, California"}