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
YL (2024-2025)	DAS testing Black Forest	GEOFON Program (GFZ-Potsdam, Germany), Germany	—	—
YS (2024-2025)	DAS monitoring of geohazards and environmental hazards project	Penn State University		DOI
9G (2021-2022)	DAS La Palma 2021 eruption	Spanish National Research Council (CSIC), Spain	—	DOI
X4 (2023-2023)	DAS experiment at Nanjing University Campus (Nanjing, China)	Nanjing University (NJU), China	—	DOI
6H (2015-2017)	Darsser Schwelle	Leibniz-Institute for Baltic Sea Research Rostock - IOW (IOW), Germany		—
4A (2010-2011)	Darfield RAMP Aftershock Deployment, NZ	University of Wisconsin, Madison, United States of America		DOI
Y7 (2020-2021)	DARE: Dense ARray for seismic site effect Estimation	Deutsches GeoForschungsZentrum GFZ (GFZ Potsdam), Germany	—	DOI
Y4 (2017-2019)	DanSeis infrastructure installation project Southern Scandinavia	GEUS Geological Survey of Denmark and Greenland, Denmark		—
DK	Danish Seismological Network	GEUS Geological Survey of Denmark and Greenland, Denmark		DOI
TY	Dam Safety Monitoring Network	Tennessee Valley Authority (TVA), United States of America	—	DOI
DG	Dam Gallery	Kurichhu Hydropower Plant (KHP), Bhutan	Bhutan	DOI
7L (2020-2025)	DAMAST (Dams and Seismicity)	Karlsruhe Institute of Technology (KIT GPI), Germany		—
X9 (2008-2011)	Dallas Earthquake Swarm	Southern Methodist University (SMU), United States of America		DOI
DA	Dagestan Regional Seismic Network of the Russian Federation	Geophysical Survey of the Russian Academy of Sciences (GSRAS), Russian Federation	—	DOI
YI (2011-2014)	DAFNE	Sodankyla Geophysical Observatory / University of Oulu, Finland		—
CZ	Czech Regional Seismic Network	Charles University in Prague, Czechia Institute of Geonics (IGN), Czechia Institute of Geophysics, Academy of Sciences of the Czech Republic, Czechia Institute of Physics of the Earth Masaryk University, Czechia Institute of Rock Structure and Mechanics (IRSM AS CR), Czechia		DOI
C9	Czech Microbarograph Network	Institute of Atmospheric Physics of the Czech Academy of Sciences	Czechia	DOI
CQ	Cyprus Broadband Seismological Network	Geological Survey Department Cyprus, Cyprus		DOI
ZZ (2002-2005)	CYCLADES	GEOFON Program (GFZ-Potsdam, Germany), Germany		DOI
3X (2022-2022)	Curnamona Cube MT & Passive Seismic Array	University of Adelaide, Australia	—	DOI
1F (2009-2009)	Curnamona	Australian National University (ANU), Australia		DOI
WC	Curacao Seismic Network	Meteorologische Dienst Curacao, Curaçao		—
XR (2004-2007)	CSEDI: Observational and Theoretical Constraints on the Structure and Rotation of the Inner Core	IRIS/PASSCAL		DOI
5H (2013-2016)	Crust of the Oman Ophiolite and its Lithosphere	Christian Albrechts - Universitat zu Kiel, Germany		DOI
XT (2003-2005)	Crust-Mantle Interactions during Continental Growth and High-Pressure Rock Exhumation at an Oblique Arc-Continent Collision Zone: SE Caribbean Margin	University of California, San Diego (UCSD), United States of America		DOI
Y1 (2018-2021)	Crust and mantle structure and the expression of extension in the Turkana Depression of Kenya and Ethiopia	Tulane University (TU), United States of America		DOI
2F (2017-2020)	Crust and lithosphere Investigation of the Easternmost expression of the Laramide Orogeny - Pilot Experiment	UC Riverside, United States of America		DOI
YA (1998-2000)	Crustal Structure of Coso Geothermal Field, California	IRIS/PASSCAL		DOI
3H (2014-2015)	Crustal Seismicity along for the Southern Andes Volcanic Zone	GEOMAR, Germany		DOI
1E (2015-2016)	Crustal Magma Plumbing of the Santorini Volcanic System - OBS Component	University of Oregon, United States of America		DOI
3E (2015-2015)	Crustal Magma Plumbing of the Santorini Volcanic System - Land Component	University of Oregon, United States of America		DOI
9H (2022-2026)	CRONOS - Croatia/Norway Contribution to AdriaArray Temporary Network	Norwegian Pool of Advanced Broad-Band Seismic Instruments University of Bergen (UiB Norway), Norway University of Zagreb, Croatia	—	—
CR	Croatian Seismograph Network	University of Zagreb, Croatia		DOI
HR	Croatian Research Seismic Network	University of Zagreb, Croatia	—	—
ZD (1996-1997)	Crete-TE	GEOFON Program (GFZ-Potsdam, Germany), Germany		—
ZS (2009-2009)	CReSIS Greenland Lake Drainage 2009	Penn State University, United States of America		DOI
XW (2012-2012)	CRESIS Greenland 2012	Penn State University, United States of America		DOI
YZ (2008-2008)	Crater Lake 2008	Carnegie Institute of Washington / Science (DTM CIW), United States of America		DOI
4W (2022-2023)	Coupling erosion, weathering, and hydrologic function in an active orogenic system	University of Southern California		DOI
X8 (2011-2011)	Coulman High VSP, Antarctica, 2010	UC Santa Barbara, United States of America		DOI
XA (1983-1983)	Costa Rica Seismic Experiment	Woods Hole Oceanographic Institution (WHOI), United States of America		—
ZX (2005-2007)	Costa Rica Poco Sol	Rutgers University, United States of America		—
XB (2008-2008)	Costa Rica Active Source OBS Experiment	Woods Hole Oceanographic Institution (WHOI), United States of America		—
CG	Coso Microearthquake Network	Geothermal Program Office/US Navy, United States of America	United States of America	—
7J (2011-2011)	Correlating seismic and visual (TLS) signals at Breidamerkurjokull, Iceland	University of South Florida (USF), United States of America		DOI
Y3 (2011-2011)	Cornell-USGS Virgina Aftershock iMaging exPeriment	Cornell University, United States of America		DOI
YU (2019-2026)	Cornell University Earth Source Heat seismic network	Cornell University, United States of America		DOI
ZZ (2024-2024)	Cornell Spring 2024 Seismology Class Project	Cornell University		DOI
OL	Cornegliano Laudense Seismic Network	Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Italy	Italy	DOI
CL	Corinth Riff Laboratory	Institut de Sciences de l'Univers (CNRS-INSU), France		DOI

Network Data API

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