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
HR	Croatian Research Seismic Network	University of Zagreb, Croatia	—	—
HP	University of Patras, Seismological Laboratory	University of Patras, Greece		DOI
HN	Hungarian National Infrasound Network	Institute of Earth Physics and Space Science, Hungary		DOI
HM	GeoRisk Seismic Network	GeoRisk Earthquake Engineering, Hungary		DOI
HL	National Observatory of Athens Seismic Network	National Observatory of Athens, Institute of Geodynamics, Athens, Greece		DOI
HK	Hong Kong Seismograph Network	Hong Kong Observatory, China		—
HI	ITSAK Strong Motion Network	Institute of Engineering Seimology Earthquake Engineering (ITSAK), Greece		DOI
HH	Seismological Network operated by SURVIOT & K-UTEC	SURVIOT Monitoring (SURVIOT), Hungary	—	DOI
HG	High-Gain Long-Period Network	Albuquerque Seismological Laboratory/USGS (ASL), United States of America		DOI
HF	Swedish Seismic Array Network	Swedish Defence Research Agency (FOI), Sweden		—
HE	Finnish National Seismic Network	University of Helsinki, Finland		DOI
HC	Seismological Network of Crete	Technological Educational Institute of Crete, Greece		DOI
HB	ITSAK Network of Lowcost Accelerometers	Institute of Engineering Seismology and Earthquake Engineering (ITSAK), Greece	—	DOI
HA	Hellenic Seismological Network, University of Athens, Seismological Laboratory	University of Athens, Greece		DOI
H2	Hawaii 2 Observatory	University of Hawaii (UH), United States of America		—
GZ	ANKARA-NET	Gazi University, Earthquake Engineering Implementation and Research Center, Türkiye	Türkiye	—
GY	Geyokcha Array, Turkmenistan	University of California, San Diego (UCSD), United States of America		DOI
GX	GFZ Affiliated Stations	Deutsches GeoForschungsZentrum GFZ (GFZ Potsdam), Germany		—
GV	Mobile RSNI	University of Genoa (UniGe), Italy	—	DOI
GU	Regional Seismic Network of North Western Italy	University of Genoa (UniGe), Italy		DOI
GT	Global Telemetered Seismograph Network (USAF/USGS)	Albuquerque Seismological Laboratory/USGS (ASL), United States of America		DOI
GS	US Geological Survey Networks	Albuquerque Seismological Laboratory/USGS (ASL), United States of America		DOI
GR	German Regional Seismic Network	Federal Institute for Geosciences and Natural Resources (BGR), Germany		DOI
GQ	German Strong Earthquake Network	Federal Institute for Geosciences and Natural Resources (BGR), Germany		—
GP	GPS Data Products for Solid Earth Science	California Institute of Technology (CIT), United States of America	United States of America	—
GO	National Seismic Network of Georgia	Ilia State University- Seismic Monitoring Centre of Georgia, Georgia		DOI
GN	Garni Dense Array	USGS Menlo Park, United States of America	Armenia	—
GM	U.S. Geological Survey Networks	United States Geological Survey (USGS), United States of America		DOI
GL	Guadeloupe Seismic and Volcano Observatory Network	Institut de Physique du Globe de Paris (IPGP), France		DOI
GI	Red Sismologica Nacional	Instituto Nacional de Sismologia, Vulcanologia, Meteorologia e Hidrologia (INSIVUMEH), Guatemala		DOI
GH	Ghana Digital Seismic Network	Ghana Geological Survey, Ghana		DOI
GG	Greenland Ice Sheet Monitoring Network	IRIS HQ, United States of America		DOI
GF	Geophysical borehole Observatory at the North Anatolian Fault	Deutsches GeoForschungsZentrum GFZ (GFZ Potsdam), Germany		—
GE	GEOFON	GEOFON Program (GFZ-Potsdam, Germany), Germany		DOI
GD	Global Positioning System (GPS) Displacement Measurements	None,		—
GC	UCLA Geonet Network	UC Los Angeles (UCLA), United States of America	United States of America	—
GB	Great Britain Seismograph Network	British Geological Survey, United Kingdom		DOI
GA	GARNET Seismic Network	Geological Survey of Japan (GSJ AIST), Japan	Japan	—
G7	Goma Volcano Seismic Network	Goma Volcano Observatory (GVO), Congo, Democratic Republic of the	—	DOI
G3	Servicio Sismologico IN3, UMG	Servicio Sismologico IN3 (SSIN3), Guatemala	Guatemala, Centro America	DOI
G2	GEOBEST Switzerland	Eidgendssisch Technische Hochschule - Swiss Seismological Service (ETH), Switzerland	—	DOI
G1	GEOTEM	GEOTEM (GEOTEM), Mexico		—
G	GEOSCOPE - French Global Network of Seismological Broadband Stations	Ecole et Observatoire des Sciences de la Terre (EOST), France Institut de Physique du Globe de Paris (IPGP), France Observatoire Geoscope, France		DOI
FV	Friuli and Veneto Short Period Network	Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Italy		DOI
FS	CEA seismic network of south-eastern France	Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA), France	—	DOI
FR	RESIF and other broad-band and accelerometric permanent networks in metropolitan France	Reseau sismologique et géodésique français (RESIF), France		DOI
FP	French Polynesia Seismic Network	Laboratoire De Geophysique (LDG), French Polynesia	—	—
FO	French Associated Seismological Network	French Seismologic and Geodetic Network (RESIF), France	France	DOI
FN	Northern Finland Seismological Network	Sodankyla Geophysical Observatory / University of Oulu, Finland		DOI
FM	Formosa Array	Academia Sinica, Institute of Earth Sciences (IESAS), Taiwan		DOI

Network Data API

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