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
OH	Ohio Seismic Network	Ohio Geological Survey, United States of America		DOI
OI	Oceania International	USGS	—	DOI
OK	Oklahoma Seismic Network	Oklahoma Geological Survey (OGS), United States of America		DOI
OL	Cornegliano Laudense Seismic Network	Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Italy	Italy	DOI
OM	Earthquake Monitoring Program of Oman	Sultan Qaboos University, Oman	Oman	—
ON	Rede Sismográfica do Sul e do Sudeste	Observatório Nacional, Rio de Janeiro, RJ, Brazil		DOI
OO	Ocean Observatories Initiative	Rutgers University, United States of America		DOI
OP	Rete Sismica e Accelerometrica	Associazione Nazionale Carabinieri nucleo regionale umbria, Italy	—	DOI
OQ	Oklahoma Structural and Site Effects Network	Oklahoma State University (OSU), United States of America		DOI
OR	OR - Reykjavik Energy	Reykjavík Energy, Iceland	—	DOI
OS	Seismological Observatory, Brasilia Brazil	University of Brasilia, Brazil	Brazil	—
OT	OTRIONS	University of Bari "Aldo Moro" (UNIBA), Italy		DOI
OU	Ulaanbaatar seismic network	Institute of Astronomy and Geophysics of Mongolian Academy of Science (IAG), Mongolia	—	DOI
OV	Observatorio Vulcanológico y Sismológico de Costa Rica	Obsercatorio Vulcanológico y Sismológico de Costa Rica, Universidad Nacional (OVSICORI-UNA), Costa Rica		DOI
OW	Ocean Networks Canada Onshore Network	Ocean Networks Canada (ONC), Canada	—	DOI
OX	North-East Italy Seismic Network	Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Italy		DOI
OY	OGS Mobile LAB	Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Italy		DOI
OZ	SRC eqServer	Seismology Research Centre (SRC), Australia		—
P0	Red Acelerográfica de Panamá	Universidad Católica Santa María La Antigua, Panama	—	DOI
P1	Porto Corsini	Eni spa, Italy	—	DOI
PA	ChiriNet	Red Sismica Volcan Baru (Chirinet), Panama		DOI
PB	Plate Boundary Observatory Borehole Seismic Network	UNAVCO, United States of America		—
PC	Panama Canal Network	Autoridad del Canal de Panama (Panama Canal Authority), Panama	Panama	—
PD	Polish Seismic Monitoring Network	Polish Academy of Sciences, Polskiej Akademii Nauk (PAN), Poland	Poland	—
PE	Pennsylvania State Seismic Network	Penn State University, United States of America		DOI
PF	Piton de la Fournaise Volcano Observatory Network (Reunion Island)	Institut de Physique du Globe de Paris (IPGP), France		DOI
PG	Central Coast Seismic Network, PG&E	Pacific Gas and Electric (PG&E), United States of America		—
PH	Puna Geothermal Network	Duke University, United States of America	United States of America	—
PI	PASSCAL Pier Test Data	IRIS/PASSCAL		—
PK	Micro Seismic Monitoring System of Northern Areas of Pakistan	Institute of Geology and Geophysics, CAS (CAS ), China		—
PL	Polish Seismological Network	Polish Academy of Sciences, Polskiej Akademii Nauk (PAN), Poland		—
PM	Portuguese National Seismic Network	Instituto Português do Mar e da Atmosfera, I.P. (IPMA), Portugal		DOI
PN	PEPP-Indiana	Indiana University Bloomington (IU Bloomington), United States of America		—
PO	Portable Observatories for Lithospheric Analysis and Research Investigating Seismicity	Carleton University, Canada Geological Survey of Canada, Canada Université du Québec à Montréal (UQÀM), Canada University of British Columbia (UBC), Canada Western University (UWO), Canada		DOI
PP	Princeton Earth Physics Program	Princeton University, United States of America		—
PQ	Public Safety Geoscience Program Canadian Research Network	Geological Survey of Canada, Canada		DOI
PR	Puerto Rico Seismic Network & Puerto Rico Strong Motion Program	University of Puerto Rico (UPR), United States of America		DOI
PS	Pacific21	University of Tokyo, Earthquake Research Institute (Todai, ERI), Japan		—
PT	Pacific Tsunami Warning Seismic System	Pacific Tsunami Warning Center, United States of America		DOI
PU	INGEMMET	Instituto Geologico Minero Y Metalurgico, Lima, Peru	Peru	—
PV	Philippine Seismic Network	Philippine Institution of Volcanology and Seismology, Philippines	Philippines	—
PW	Pacific Northwest Geodetic Array	Central Washington University, United States of America	United States of America	DOI
PX	Parkfield Experiment Array	Duke University, United States of America	United States of America	—
PY	Piñon Flats Observatory Array	University of California, San Diego (UCSD), United States of America		DOI
PZ	Prince Islands Real-time Earthquake monitoring System	GFZ Potsdam, BU-Kandilli, Multiple Countries		DOI
QA	Qatar Seismic Network	Qatar Civil Aviation Authority, Qatar	Qatar	—
QC	Quake Catcher Network	Stanford University, United States of America		—
QE	Equinor	Equinor, Norway	—	DOI
QM	Comoros Archipelago Seismic and Volcano Network	Institut de Physique du Globe de Paris (IPGP), France		DOI
QW	Canadian National Earthquake Early Warning System	Natural Resources Canada (NRCAN), Canada	Canada	DOI

Network Data API

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