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
1W (2022-2022)	Kamara Mine Network Continuation	Aristotle University of Thessaloniki, Greece	Greece	—
4A (2021-2021)	Kamara Mine Network	Aristotle University of Thessaloniki, Greece	—	DOI
9G (2018-2020)	Kalimantan Temporary Network	University of Cambridge Earth Sciences, United Kingdom		DOI
1Z (2023-2024)	Kahramanmaras Afterslip 2023-2024, East Anatolian Fault, Turkey	University of Colorado, United States of America		DOI
XI (2025-2025)	K3-Matelles	Université Grenoble Alpes (UGA), France	—	—
XR (2024-2026)	K3-Lez	Institut des Sciences de la Terre, France	—	DOI
5C (2018-2025)	JuraQuake	Université Bourgogne Franche-Comté (UBFC), France		—
ZW (2010-2012)	JULS	GEOFON Program (GFZ-Potsdam, Germany), Germany		DOI
3A (2019-2019)	JPL Active Source Balloon Infrasound Experiment at EMRTC	Jet Propulsion Laboratory, NASA (JPL), United States of America		DOI
3S (2023-2024)	Jotul Vent Field Seismic Network (Knipovich Ridge)	Alfred Wegener Institute (AWI), Germany	—	—
XA (1992-1992)	Joshua Tree Aftershock	University of California, San Diego (UCSD), United States of America		DOI
JI	Jorhat India Seismic Network	North East Institute of Science and Technology, Jorhat (NEIST), India	India	—
JS	Jordan Seismic Network	Jordan Seismo Obs & Geo Studies / Natural Resources Authority (NRA), Jordan		—
XN (2011-2013)	joint summer field camp BSU/CSM/Imperial College of London	Boise State University, United States of America		DOI
XH (2025-2028)	Jersey Valley Seismic Array	Lawrence Berkeley National Laboratory (LBL), United States of America	—	DOI
Z3 (2010-2013)	Jemez Pueblo Geothermal Exploration	TBA Inc, United States of America		DOI
JP	Japan Meteorological Agency Seismic Network	Japan Meteorological Agency (JMA), Japan		—
5T (2023-2023)	JAMSTEC-Muroto	IFREE/JAMSTEC (Japan Agency for Marine-Earth Science and Technology), Japan	—	DOI
JM	Jamaica Seismograph Network	University of the West Indies - Mona, Jamaica		—
7G (2016-2018)	Jailolo network, West Halmahera - Indonesia	GEOFON Program (GFZ-Potsdam, Germany), Germany		DOI
ZI (1999-1999)	Izmit	GEOFON Program (GFZ-Potsdam, Germany), Germany	Germany	—
MA	IZIIS	"Institute of Earthquake Engineering and Engineering Seismology, University "Ss.Cyril and Methodious", UKIM-IZIIS Skopje, R.N.Macedonia" (UKIM-IZIIS), Macedonia	North Macedonia	DOI
XK (2017-2019)	Ivrea - AlpArray Complementary Experiment	University of Lausanne (UNIL), Switzerland		DOI
HI	ITSAK Strong Motion Network	Institute of Engineering Seimology Earthquake Engineering (ITSAK), Greece		DOI
HB	ITSAK Network of Lowcost Accelerometers	Institute of Engineering Seismology and Earthquake Engineering (ITSAK), Greece	—	DOI
4B (2019-2020)	iTarg3T	Institute Earth Sciences "Jaume Almera" (ICTJA), Spain		DOI
IT	Italian Strong Motion Network	Presidency of Counsil of Ministers - Civil Protection Department (PCM - DPC), Italy		DOI
IV	Italian National Seismic Network	Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy		DOI
IZ	Italian Experimental Seismic Network	Other	—	—
B2	Itaipu Binacional	Itaipu Binacional (Itaipu), Brazil	Brazil	DOI
IJ	Istanbul University Seismic Network	Kandilli Observatory And Earthquake Research Institute, Boğaziçi University (KOERI), Türkiye		DOI
ZQ (2023-2023)	Istanbul IRIS DASMonth	ETH Zurich, Switzerland	—	DOI
XH (2000-2000)	ISSA2000	GEOFON Program (GFZ-Potsdam, Germany), Germany	Germany	—
ZP (1999-2001)	ISSA	GEOFON Program (GFZ-Potsdam, Germany), Germany		—
IS	Israel National Seismic Network	Ben-Gurion University of the Negev (BGU), Israel		—
1D (2012-2013)	ISOLDE	Alfred Wegener Institute (AWI), Germany		—
1O (2022-2025)	ISMENET - ISMEtpasa seismic NETwork	Deutsches GeoForschungsZentrum GFZ (GFZ Potsdam), Germany	—	DOI
3E (2022-2024)	Islands of the Four Mountains 2022-23	Carnegie Institution for Science (CIS), United States of America	—	DOI
Y2 (2015-2016)	Islands of the Four Mountains 2015-16	Carnegie Institute of Washington / Science (DTM CIW), United States of America		DOI
X9 (2024-2024)	Isla Navarino Phased Array	University of North TX, AERI		DOI
IX	Irpinia Seismic Network	—		—
1M (2003-2015)	Irish Seismological Lithospheric Experiment / Irish Seismological Upper Mantle Experiment	Dublin Institute for Advanced Studies (DIAS), Ireland	—	DOI
X5 (2021-2021)	Irish Sea OBSs deployment experiment	GEOFON Program (GFZ-Potsdam, Germany), Germany	—	—
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	—
YW (2016-2016)	IRIS Community Wavefield Experiment in Oklahoma	IRIS HQ, United States of America		DOI
XN (1996-1996)	Irian Jaya RAMP	IRIS/PASSCAL		DOI
5T (2010-2022)	Ireland Array	Dublin Institute for Advanced Studies (DIAS), Ireland	—	DOI
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

Network Data API

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