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)	Albuquerque Seismological Laboratory/USGS (ASL), United States of America		DOI
II	Global Seismograph Network - IRIS/IDA	Scripps Institution of Oceanography (SIO), United States of America		DOI
IB	IberArray	Institute Earth Sciences "Jaume Almera" (ICTJA), Spain		DOI
IF	IFMS Seismic Network	IFMS, Brazil		DOI
IK	IISERK Seismic Network	Indian Institute of Science Education and Research Kolkata (IISER), India	Bharat	DOI
IA	InaTEWS Indonesia Tsunami Early Warning System	Meteorological, Climatological and Geophysical Agency (BMKG), Indonesia		—
IE	INL Seismic Monitoring Program	Idaho National Laboratory (INL), United States of America		DOI
IQ	Inquique Local Network	University of Kiel, Germany		DOI
IP	Instituto Superior Tecnico Broadband Seismic Network	Instituto Superior Tecnico, Universidade Tecnica de Lisboa (IST), Portugal		—
IW	Intermountain West Seismic Network	Albuquerque Seismological Laboratory/USGS (ASL), United States of America		DOI
IM	International Miscellaneous Stations	Various Institutions, Multiple Countries		DOI
IO	International OGS Network	Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Italy		DOI
IR	International Registry	International Seismological Centre (ISC), United Kingdom	United Kingdom	—
IL	Iranian Long Period Array	Institute of Geophysics, University of Tehran, Iranian Seis Center, Iran		—
I2	Iranian National Broadband Seismic Network	International Institute of Earthquake Engineering and Seismology (IIEES), Iran	Iran	—
I	Iranian Seismological Center National Network	Institute of Geophysics, University of Tehran, Iranian Seis Center, Iran	—	—
I1	Iranian Strong Motion Network	Road, Housing & Urban Development Research Center (BHRC), Iran	Iran	DOI
IX	Irpinia Seismic Network	—		—
IS	Israel National Seismic Network	Ben-Gurion University of the Negev (BGU), Israel		—
IJ	Istanbul University Seismic Network	Kandilli Observatory And Earthquake Research Institute, Boğaziçi University (KOERI), Türkiye		DOI
IZ	Italian Experimental Seismic Network	Other	—	—
IV	Italian National Seismic Network	Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy		DOI
IT	Italian Strong Motion Network	Presidency of Counsil of Ministers - Civil Protection Department (PCM - DPC), Italy		DOI
IN	National Seismic Network of India	India Meteorological Department, India		—
IC	New China Digital Seismograph Network	Albuquerque Seismological Laboratory/USGS (ASL), United States of America		DOI
ID	Project IDA VLP Seismometer Network - UCSD/SIO/IGPP	Scripps Institution of Oceanography (SIO), United States of America		DOI
IH	Red Sismica Dominicana del INDRHI	Instituto Nacional de Recursos Hidraulicos, Dominican Republic	Dominican Republic	—
IY	Rete Sismica Unical	Universita Della Calabria, Italy, Italy		DOI
IG	Southern Spain Broadband Seismic Network	Instituto Andaluz de Geofisica, Granada University, Spain	Spain	—
I0	The Scientific Induced Seismicity Monitoring Network	Alberta Geological Survey (AGS), Canada	—	DOI

Network Data API

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