The following information is available for the seismic and geophysical networks that contribute data to the NCEDC:
- Parkfield High Resolution Seismic Network
- Berkeley Digital Seismic Network
- Northern California Seismic Network
- UNR Broadband Network
- USGS Low-frequency Geophysical Network
- Calpine/Unocal Geysers Network
- Bay Area Regional Deformation Network
- USGS Continuous GPS network
- Earthscope Program
UNR Broadband Network (overview | map | data)
|The University of Nevada, Reno, operates a network which includes 4 stations with broadband sensors located in western Nevada and eastern California. A waveform archive of these broadband data is available at the NCEDC.|
|A borehole microseismic network was original deployed in the Geysers Geothermal Field by the Unocal Corporation. Now operated by the Calpine Corporation, 10 years of triggered event waveform data are available at the NCEDC.|
|BARD is a network of 32 continuous GPS sites in northern California that measure deformation related to strain accumulation on the San Andreas Fault system, as well as displacements caused by earthquakes and fault creep. Data is available in real-time from the Berkeley Seismological Lab's NTRIP caster and daily files are available from the NCEDC.|
The USGS office in Menlo Park, CA operates eight continuous GPS stations in the San Francisco Bay Area. Daily raw and RINEX files are available each day following UTC midnight. Public access to real-time data streams is available through the Berkeley Seismological Lab's NTRIP caster (account info).
The Earthscope program is an initiative of the National Science Foundation to investigate the structure and evolution of the North American continent and the physical processes controlling earthquakes and volcanic eruptions. The NCEDC is archiving several types of data from the Earthscope program.
- PBO Strain data (Overview | Data)
The Plate boundary Observatory (PBO) is a geodetic observatory designed to study the three-dimensional strain field resulting from deformation across the active boundary zone between the Pacific and North American plates in the western United States. The observatory consists of arrays of Global Positioning System (GPS) receivers and strainmeters which will be used to deduce the strain field on timescales of days to decades and geologic and paleoseismic investigations to examine the strain field over longer time scales.
- SAFOD Seismic data (Overview | Data)
The San Andreas Fault Observatory at Depth (SAFOD) is a deep borehole observatory that will directly measure the physical conditions under which plate boundary earthquakes occur.
The SAFOD pilot hole is a separate, 2.2-km-deep scientific drilling experiment at the same surface location as SAFOD. This site is ~ 1.8 km SW of the San Andreas fault near Parkfield, CA, on a segment of the fault that moves through a combination of aseismic creep and repeating microearthquakes. It lies just north of the rupture zone of the 2004, magnitude 6 Parkfield earthquake, the most recent in a series of events that have ruptured the fault six times since 1857.
- USArray Seismic data (Overview | Data )
Data from 19 stations of the Berkeley Digital Seismic Network are part of the USArray deployment in California. The NCEDC is also archiving data from the Transportable Array stations being deployed in central and northern California, southern Oregon, and western Nevada.