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
T	Tonga Seismic Network	Tonga Geological Services (TGS), Tonga	—	—
T0	Torino Railway District	Rete Ferroviaria Italiana (RFI) (RFI), Italy	—	DOI
T1	IPE_ETE	Institute of Physics of the Earth Masaryk University, Czechia		DOI
T2	Trieste Railway District	Rete Ferroviaria Italiana (RFI) (RFI), Italy	—	DOI
T3	Rete Accelerometrica Terna	TERNA (TERNA), Italy	Italy	—
T4	Canakkale Onsekiz Mart University Earthquake Research Center	Canakkale Onsekiz Mart University (COMU), Türkiye		—
T5	Central Weather Administration Seismographic Network	Central Weather Administration	—	DOI
T9	TAMU Seismic Network	Texas A&M University, United States of America	—	DOI
TA	USArray Transportable Array	IRIS Transportable Array (IRIS_TA), United States of America		DOI
TB	MRC Earth and Marine Sciences Network	TÜBITAK Marmara Research Center (MRC Turkey), Türkiye		DOI
TC	Red Sismológica Nacional de Costa Rica	Universidad de Costa Rica, Costa Rica		DOI
TD	TransAlta Monitoring Network	TransAlta Corporation, Canada		—
TE	EGAT Dams Seismic Monitoring System	Electricity Generating Authority of Thailand (EGAT), Thailand	Thailand	DOI
TF	Tajikistan National Seismic Network	Insitute of Geology, Earthquake Engineering and Seismology of the NAST (IGEES NAST), Tajikistan	—	DOI
TG	Royal Irrigation Department	Royal Irrigation Department (RID), Thailand		DOI
TH	Thüringer Seismologisches Netz	Institut fuer Geowissenschaften, Friedrich-Schiller-Universitaet Jena, Germany		DOI
TI	Centro Sismologico de America Central	Universidad de Costa Rica, Costa Rica	Costa Rica	—
TJ	Tajikistan National Seismic Network	Geophysical Survey of the National Academy of sciences of Tajikistan (GS NAST), Tajikistan		DOI
TK	Turkish National Strong Motion Network	Disaster and Emergency Management Authority (AFAD), Türkiye		DOI
TL	Armutlu Local Seismic Network	Kocaeli University, Türkiye		DOI
TM	Thai Seismic Monitoring Network	Earthquake Observation Division (EOD), Thailand Thai meteorological department (TMD), Thailand		—
TN	Eastern Tennessee Seismic Network	Joint Institute for Energy and the Evnironment, United States of America	United States of America	—
TO	Tectonic Observatory - MASE, VEOX , PeruSE, CCSE	California Institute of Technology (CIT), United States of America		DOI
TP	Rete di monitoraggio microsismico installata presso la concessione Gorgoglione	TOTAL E&P ITALIA S.P.A., Italy		—
TQ	Taiwan multi-parametric environmental seismic monitoring network	Deutsches GeoForschungsZentrum GFZ (GFZ Potsdam), Germany	—	DOI
TR	Eastern Caribbean Seismograph Network	University of the West Indies, Seismic Research Centre, Trinidad and Tobago		—
TS	TERRAscope (Southern California Seismic Network)	California Institute of Technology (CIT), United States of America		—
TT	Seismic Network of Tunisia	Institut National de la Météorologie, Tunis, Tunisia		—
TU	Turkish National Seismic Network	Disaster and Emergency Management Authority (AFAD), Türkiye		DOI
TV	INGV experiments network	Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy		—
TW	Broadband Array in Taiwan for Seismology	Institute of Earth Sciences, Academia Sinica, Taiwan (IESAS), Taiwan		DOI
TX	Texas Seismological Network	Bureau of Economic Geology, The University of Texas at Austin (BEG UTEXAS), United States of America		DOI
TY	Dam Safety Monitoring Network	Tennessee Valley Authority (TVA), United States of America	—	DOI
TZ	Ol Doinyo Lengai, TZ Volcano Monitoring	Colgate University, United States of America		DOI

Network Data API

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