Filters: System Type: Data Release (X) > Categories: NOT Data Release - In Progress (X) > Tags: {"type":"Subject","name":"faulting (geologic)"} (X) > Types: OGC WFS Layer (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types (Less) Map Service (2) OGC WMS Layer (2) OGC WMS Service (2) Contacts (Less) Earthquake Hazards Program Mark R Goldman Joanne H Chan Rufus D Catchings U.S. Geological Survey Coyn J Criley Benjamin A Brooks Categories (Less) Data (2) Tags (with Type=Subject ) earthquake hazards (2) earthquakes (2) faulting (geologic) (2) seismic reflection and refraction (2) seismology (2) west napa fault zone (2) View Results as: JSON ATOM CSV

High-resolution seismic imaging of the West Napa Fault Zone at Saintsbury Winery, Napa, California 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 at Saintsbury Winery in Napa, California. We acquired seismic reflection, refraction, and guided-wave data along a 115-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 116 SercelTM L40A P-wave (40-Hz vertical-component) geophones with a sensitivity of 22.34 volts/meter/second to record 116 P-wave shots. We also used 116 SercelTM L28-LBH S-wave (4.5-Hz horizontal-component) geophones with a sensitivity of... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Earthquake Hazards, Earthquakes, Faulting (geologic), Geophysics, Napa, All tags... Northern California, Seismology, Seismology, USGS Science Data Catalog (SDC), West Napa Fault Zone, seismic reflection and refraction, Fewer tags High-resolution seismic imaging of the West Napa Fault Zone at Buhman Avenue, Napa, California 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... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Earthquake Hazards, Earthquakes, Faulting (geologic), Geophysics, Napa, All tags... Northern California, Seismology, Seismology, USGS Science Data Catalog (SDC), West Napa Fault Zone, seismic reflection and refraction, Fewer tags