International Federation of Digital Seismograph Networks
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Network Codes

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

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Network Code Network Name Operated By Deployment DOI
G3 Servicio Sismologico IN3, UMG Guatemala, Centro America DOI
GA GARNET Seismic Network
  • Geological Survey of Japan (GSJ AIST)
 Japan —
GB Great Britain Seismograph Network
—
GC UCLA Geonet Network
  • UC Los Angeles (UCLA)
 United States of America —
GD Global Positioning System (GPS) Displacement Measurements
  • None
—
GE GEOFON
  • GEOFON Program (GFZ-Potsdam, Germany)
DOI
GF Geophysical borehole Observatory at the North Anatolian Fault
—
GG Greenland Ice Sheet Monitoring Network
  • IRIS HQ (DC)
DOI
GH Ghana Digital Seismic Network
  • Ghana Geological Survey
DOI
GI Red Sismologica Nacional
DOI
GL Guadeloupe Seismic and Volcano Observatory Network
DOI
GM U.S. Geological Survey Networks
  • U.S. Geological Survey
DOI
GN Garni Dense Array
  • USGS Menlo Park
 Armenia —
GO National Seismic Network of Georgia
  • Ilia State University- Seismic Monitoring Centre of Georgia (Georgia)
—
GP GPS Data Products for Solid Earth Science
  • California Institute of Technology (Caltech)
 United States of America —
GQ German Strong Earthquake Network
  • BGR Federal Institute for Geosciences and Natural Resources (BGR, Germany)
—
GR German Regional Seismic Network
  • BGR Federal Institute for Geosciences and Natural Resources (BGR, Germany)
DOI
GS US Geological Survey Networks
DOI
GT Global Telemetered Seismograph Network (USAF/USGS)
DOI
GU Regional Seismic Network of North Western Italy
DOI
GX GFZ Affiliated Stations
—
GY Geyokcha Array, Turkmenistan
DOI
GZ ANKARA-NET Turkey —
H2 Hawaii 2 Observatory
—
HA Hellenic Seismological Network, University of Athens, Seismological Laboratory
  • University of Athens
DOI
HC Seismological Network of Crete
  • Technological Educational Institute of Crete
DOI
HE Finnish National Seismic Network
  • University of Helsinki
DOI
HF Swedish Seismic Array Network
  • Swedish Defence Research Agency (FOI)
—
HG High-Gain Long-Period Network
DOI
HI ITSAK Strong Motion Network
  • (ITSAK) Institute of Engineering Seimology Earthquake Engineering
DOI
HK Hong Kong Seismograph Network
  • Hong Kong Observatory
—
HL National Observatory of Athens Seismic Network
  • National Observatory of Athens, Institute of Geodynamics, Athens
DOI
HM GeoRisk Seismic Network
DOI
HN Hungarian National Infrasound Network
  • Institute of Earth Physics and Space Science
DOI
HP University of Patras, Seismological Laboratory
  • University of Patras
DOI
HS Hessischer Erdbebendienst Germany DOI
HT Aristotle University of Thessaloniki Seismological Network
  • Aristotle University of Thessaloniki
DOI
HU Hungarian National Seismological Network
  • Institute of Earth Physics and Space Science
DOI
HV Hawaiian Volcano Observatory Network
DOI
HW Hanford Washington Seismic Network
—
HY UEH Seismic Network — DOI
I1 Iranian Strong Motion Network Iran DOI
I2 Iranian National Broadband Seismic Network Iran —
IA InaTEWS Indonesia Tsunami Early Warning System
  • Meteorological, Climatological and Geophysical Agency (BMKG Indonesia)
—
IB IberArray
  • Institute Earth Sciences "Jaume Almera" CSIC (ICTJA Spain)
DOI
IC New China Digital Seismograph Network
DOI
ID Project IDA VLP Seismometer Network - UCSD/SIO/IGPP
  • Scripps Institution of Oceanography (SIO)
DOI
IE INL Seismic Monitoring Program
DOI
IF IFMS Seismic Network
DOI
IG Southern Spain Broadband Seismic Network Spain —

Network Data API

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