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
IU Global Seismograph Network (GSN - IRIS/USGS)
DOI
IT Italian Strong Motion Network
DOI
IS Israel National Seismic Network
—
IR International Registry
  • International Seismological Centre (ISC, UK)
 United Kingdom —
IQ Inquique Local Network
  • University of Kiel
DOI
IP Instituto Superior Tecnico Broadband Seismic Network
—
IO International OGS Network
DOI
IN National Seismic Network of India
—
IM International Miscellaneous Stations
  • None
—
IL Iranian Long Period Array
  • Institute of Geophysics (University of Tehran, Iranian Seis Center-Iran)
—
IK IISERK Seismic Network
  • Indian Institute of Science Education and Research Kolkata (IISER)
 India DOI
IJ Istanbul University Seismic Network
DOI
II Global Seismograph Network - IRIS/IDA
  • Scripps Institution of Oceanography (SIO)
DOI
IH Red Sismica Dominicana del INDRHI Dominican Republic —
IG Southern Spain Broadband Seismic Network Spain —
IF IFMS Seismic Network
DOI
IE INL Seismic Monitoring Program
DOI
ID Project IDA VLP Seismometer Network - UCSD/SIO/IGPP
  • Scripps Institution of Oceanography (SIO)
DOI
IC New China Digital Seismograph Network
DOI
IB IberArray
  • Institute Earth Sciences "Jaume Almera" CSIC (ICTJA Spain)
DOI
IA InaTEWS Indonesia Tsunami Early Warning System
  • Meteorological, Climatological and Geophysical Agency (BMKG Indonesia)
—
I2 Iranian National Broadband Seismic Network Iran —
I1 Iranian Strong Motion Network Iran DOI
HY UEH Seismic Network — DOI
HW Hanford Washington Seismic Network
—
HV Hawaiian Volcano Observatory Network
DOI
HU Hungarian National Seismological Network
  • Institute of Earth Physics and Space Science
DOI
HT Aristotle University of Thessaloniki Seismological Network
  • Aristotle University of Thessaloniki
DOI
HS Hessischer Erdbebendienst Germany DOI
HP University of Patras, Seismological Laboratory
  • University of Patras
DOI
HN Hungarian National Infrasound Network
  • Institute of Earth Physics and Space Science
DOI
HM GeoRisk Seismic Network
DOI
HL National Observatory of Athens Seismic Network
  • National Observatory of Athens, Institute of Geodynamics, Athens
DOI
HK Hong Kong Seismograph Network
  • Hong Kong Observatory
—
HI ITSAK Strong Motion Network
  • (ITSAK) Institute of Engineering Seimology Earthquake Engineering
DOI
HG High-Gain Long-Period Network
DOI
HF Swedish Seismic Array Network
  • Swedish Defence Research Agency (FOI)
—
HE Finnish National Seismic Network
  • University of Helsinki
DOI
HC Seismological Network of Crete
  • Technological Educational Institute of Crete
DOI
HA Hellenic Seismological Network, University of Athens, Seismological Laboratory
  • University of Athens
DOI
H2 Hawaii 2 Observatory
—
GZ ANKARA-NET Turkey —
GY Geyokcha Array, Turkmenistan
DOI
GX GFZ Affiliated Stations
—
GU Regional Seismic Network of North Western Italy
DOI
GT Global Telemetered Seismograph Network (USAF/USGS)
DOI
GS US Geological Survey Networks
DOI
GR German Regional Seismic Network
  • BGR Federal Institute for Geosciences and Natural Resources (BGR, Germany)
DOI
GQ German Strong Earthquake Network
  • BGR Federal Institute for Geosciences and Natural Resources (BGR, Germany)
—
GP GPS Data Products for Solid Earth Science
  • California Institute of Technology (Caltech)
 United States of America —

Network Data API

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