International Federation of Digital Seismograph Networks

NT: USGS Geomagnetism Program

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FDSN Network Information

FDSN code NT Operated by USGS
Network name USGS Geomagnetism Program Deployment region United States
Start date Jan. 1, 1901 End date -
Network Website
Short description

The U.S. Geological Survey Geomagnetism Program monitors the Earth's magnetic field at 14 ground-based observatories in the United States. The Program provides continuous records of magnetic field variations from Fluxgate and Proton magnetometers.

Citation Information

Digital Object Identifier (DOI)
USGS (1901): USGS Geomagnetism Program Definitive Data. INTERMAGNET. Other/Seismic Network. 10.7914/SN/NT

Data Access

Data Availability

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Additional Notes Definitive Data is available through INTERMAGNET at and