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
IJ	Istanbul University Seismic Network	Kandilli Observatory And Earthquake Research Institute, Boğaziçi University (KOERI), Türkiye		DOI
IS	Israel National Seismic Network	Ben-Gurion University of the Negev (BGU), Israel		—
IX	Irpinia Seismic Network	—		—
EI	Irish National Seismic Network	Dublin Institute for Advanced Studies (DIAS), Ireland		DOI
EA	IRIS Education and Research Network	IRIS HQ, United States of America	United States of America	—
MP	Iraqi Seismic Observatory	• Seismological Laboratory of University of Basrah (SLUB) and Laboratory of Seismology and Spatial Data Analysis of University of Baghdad (LSDAUoB), Iraq (SLUB and LSDAUoB), Iraq		DOI
I1	Iranian Strong Motion Network	Road, Housing & Urban Development Research Center (BHRC), Iran	Iran	DOI
I	Iranian Seismological Center National Network	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	—
IL	Iranian Long Period Array	Institute of Geophysics, University of Tehran, Iranian Seis Center, Iran		—
T1	IPE_ETE	Institute of Physics of the Earth Masaryk University, Czechia		DOI
D1	IPE_EDU	Institute of Physics of the Earth Masaryk University, Czechia		DOI
IR	International Registry	International Seismological Centre (ISC), United Kingdom	United Kingdom	—
IO	International OGS Network	Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Italy		DOI
IM	International Miscellaneous Stations	Various Institutions, Multiple Countries		DOI
SG	International Geodynamics and Earth Tide Service	Multiple Operators, Belgium		DOI
IW	Intermountain West Seismic Network	Albuquerque Seismological Laboratory/USGS (ASL), United States of America		DOI
IP	Instituto Superior Tecnico Broadband Seismic Network	Instituto Superior Tecnico, Universidade Tecnica de Lisboa (IST), Portugal		—
IQ	Inquique Local Network	University of Kiel, Germany		DOI
IE	INL Seismic Monitoring Program	Idaho National Laboratory (INL), United States of America		DOI
TV	INGV experiments network	Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy		—
PU	INGEMMET	Instituto Geologico Minero Y Metalurgico, Lima, Peru	Peru	—
IA	InaTEWS Indonesia Tsunami Early Warning System	Meteorological, Climatological and Geophysical Agency (BMKG), Indonesia		—
IK	IISERK Seismic Network	Indian Institute of Science Education and Research Kolkata (IISER), India	Bharat	DOI
IF	IFMS Seismic Network	IFMS, Brazil		DOI
WW	Idaho Seismic Network	Idaho Geological Survey (IGS), United States of America	—	DOI
S2	IceSMN Icelandic Strong Motion Network	University of Iceland, Iceland	—	DOI
SM	Icelandic Strong Motion Network	University of Iceland, Iceland	Iceland	—
VI	Icelandic National Digital Seismograph Network	Icelandic Meteorological Office (IMO), Iceland		DOI
IB	IberArray	Institute Earth Sciences "Jaume Almera" (ICTJA), Spain		DOI
HU	Hungarian National Seismological Network	Institute of Earth Physics and Space Science, Hungary		DOI
HN	Hungarian National Infrasound Network	Institute of Earth Physics and Space Science, Hungary		DOI
HK	Hong Kong Seismograph Network	Hong Kong Observatory, China		—
HG	High-Gain Long-Period Network	Albuquerque Seismological Laboratory/USGS (ASL), United States of America		DOI
VD	High Agri Valley geophysical Observatory	Consiglio Nazionale delle Ricerche (CNR IMAA), Italy		DOI
HS	Hessischer Erdbebendienst	Hessian Agency for Nature Conservation, Environment and Geology (HLNUG), Germany	Germany	DOI
HA	Hellenic Seismological Network, University of Athens, Seismological Laboratory	University of Athens, Greece		DOI
HV	Hawaiian Volcano Observatory Network	USGS Hawaiian Volcano Observatory (HVO), United States of America		DOI
H2	Hawaii 2 Observatory	University of Hawaii (UH), United States of America		—
HZ	Hasting Micro-Seismic Consulting	Private Consulting Service (HMSC), United States of America	—	DOI
HW	Hanford Washington Seismic Network	Pacific Northwest National Laboratory (PNL), United States of America		—
AY	Haitian Seismic Network	Bureau of Mines and Energy, Haiti		—
GL	Guadeloupe Seismic and Volcano Observatory Network	Institut de Physique du Globe de Paris (IPGP), France		DOI
GG	Greenland Ice Sheet Monitoring Network	IRIS HQ, United States of America		DOI
GB	Great Britain Seismograph Network	British Geological Survey, United Kingdom		DOI
GP	GPS Data Products for Solid Earth Science	California Institute of Technology (CIT), United States of America	United States of America	—
G7	Goma Volcano Seismic Network	Goma Volcano Observatory (GVO), Congo, Democratic Republic of the	—	DOI
GT	Global Telemetered Seismograph Network (USAF/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
IU	Global Seismograph Network (GSN - IRIS/USGS)	Albuquerque Seismological Laboratory/USGS (ASL), United States of America		DOI

Network Data API

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