International Federation of Digital Seismograph Networks

Network Codes

The following network codes are assigned by the FDSN to facilitate unique identifiers for seismological data streams.

Request a new network code
Generate citations for network data

Network Code Network Name Operated By Deployment DOI
UA Caribbean Andesite Lava Island Precision Seismo-geodetic Observatory
  • University of Arkansas - Fayetteville
UC Colima Seismic Network
  • Universidad de Colima (Mexico)
UI North Idaho Seismic Network
  • University of Idaho
UY Observatorio Geofisico del Uruguay
  • Universidad de la Republica
UO Pacific Northwest Seismic Network - University of Oregon
  • University of Oregon
UW Pacific Northwest Seismic Network - University of Washington
  • University of Washington
UV Red Sismológica del Suroccidente Colombiano Colombia DOI
UD Seismic Network Main Center of Special Monitoring
UE Seismological Network of United Arab Emirates United Arab Emirates
UP Swedish National Seismic Network
  • Uppsala University
UN Uganda National Seismological Network
  • Directorate of Geological Survey and Mines, Uganda (DGSM)
Uganda DOI
UH UH Infrasound Network
UR UKArray United Kingdom DOI
UK UK Schools Seismic Network
  • University of Leicester (SEIS UK)
US United States National Seismic Network
UM University of Montana Seismic Network
  • University Of Montana
UU University of Utah Regional Seismic Network
UB University of Zimbabwe 1 Zimbabwe DOI
UG Unocal Geothermal Northern California Network
  • Unocal Corporation
United States of America
UL USGS Low Frequency Geophysical Data Network
  • USGS Menlo Park
UZ Uzbekistan Digital Seismic Network Uzbekistan

Network Data API

The network data shown here is also available programmatically through a web service API.