| Latest contribution OriginMT | Code | Institute | Country | City | |
|---|---|---|---|---|---|
| AE | Arizona Broadband Seismic Network, Arizona Geological Survey | USA | |||
| AG | Arkansas Seismic Network, Arkansas Geological Survey | USA | |||
| 2024-11-21 | AK | Alaska Regional Network, University of Alaska-Fairbanks | United States | Fairbanks | |
| AO | Arkansas Seismic Observatory, University of Arkansas at Little Rock | USA | |||
| AR | Northern Arizona Network, Arizona Earthquake Information Center | USA | |||
| 2024-11-15 | AT | Alaska Tsunami Warning Seismic System, West Coast and Alaska Tsunami Warning Center | United States | Anchorage | |
| 2024-11-21 | AUST | Geoscience Australia, Canberra, ACT, Australia | Australia | Canberra | |
| 2024-11-20 | AV | Alaska Volcano Observatory, USGS - Anchorage, University of Alaska, Geophysical Institute | United States | Anchorage | |
| 2024-11-20 | AYIT | URGeo, Geoazur (Universite Cote d'Azur, IRD, CNRS, Observatoire de la Cote d'Azur) | Haiti | Port-au-Prince | |
| AZ | ANZA Regional Network, University of California, San Diego - USGS Menlo Park | USA | |||
| 2024-11-21 | BEO | Seismological Survey of Serbia | Serbia | Belgrade | |
| 2024-11-20 | BER | University of Bergen | Norway | Bergen | |
| 2024-11-18 | BGR | Bundesanstalt fur Geowissenschaften und Rohstoffe, German Regional Seismograph Network | Germany | Hannover | |
| 2024-11-20 | BGS | British Geological Survey | United Kingdom | Edinburgh | |
| 2016-04-08 | BGSG | British Geological Survey (Global Network) | United Kingdom | Edinburgh | |
| BK | Berkeley Digital Seismic Network (BDSN) | USA | |||
| 2011-03-02 | BRA | Geophysical Institute, Seismology Division, Slovak Academy of Sciences | Slovakia | Bratislava | |
| 2024-11-21 | NIEP | National Institute for Earth Physics | Romania | Bucharest | |
| 2024-11-21 | BUD | HUN-REN EPSS Kövesligethy Radó Seismological Observato | Hungary | Budapest | |
| CC | Cascade Chain Volcano Monitoring, USGS/Cascade Volcano Observatory | USA | |||
| CE | California Strong Motion Instrumentation Program, California Geological Survey - Earthquake Engineering | USA | |||
| CG | Coso Microearthquake Network, Geothermal Program Office, US Navy, China Lake | USA | |||
| 2024-11-21 | 2024-10-25 | SCSN | Southern California Seismic Network, California Institute of Technology / USGS - Pasadena | United States | Pasadena |
| 2024-11-20 | CN | Canadian National Seismic Network (CNSN) BB stations | Canada | Ottawa | |
| 2024-11-10 | CNRST | Centre National de la Recherche Scientifique et Technique | Morocco | Rabat | |
| CO | South Carolina Seismic Network, University of South Carolina at Columbia | USA | |||
| 2015-07-23 | CPP | Jascha Polet (Cal Poly Pomona) | United States | Pomona | |
| 2024-11-20 | CPPT | French Polynesian Tsunami Warning Center - CEA | Polynesie Francaise - Tahiti | Papeete | |
| 2024-11-19 | CRAAG | Centre de Recherche en Astronomie, Astrophysique et Geophysique | Algeria | Algiers | |
| 2024-11-19 | CSLC | EMSC - CSLOC | France | Arpajon | |
| CU | CariUSGS Caribbean Network, USGS, Albuquerque Seismological Laboratory | USA | |||
| 2024-11-20 | CWB | Central Weather Bureau | Taiwan | Taipei | |
| 2024-11-21 | GSD | Cyprus Geological Survey Department | Cyprus | Nicosia | |
| 2024-11-21 | 2024-11-15 | AFAD | Disaster and Emergency Management Presidency, Earthquake Department (AFAD) | Turkey | Ankara |
| 2013-09-18 | DHMR | National Seismological Observatory Center | Yemen | Dhamar | |
| 2024-11-21 | BMKG | Badan Meteorologi, Klimatologi dan Geofisika | Indonesia | Jakarta | |
| 2024-06-05 | DJI | Observatoire Geophysique d'Arta | Djibouti | Djibouti | |
| DSN | Dubai Seismic Network | Dubai | Dubai Municipality | ||
| 2015-09-21 | EOST | École et observatoire des sciences de la Terre | France | Strasbourg | |
| EP | UTEP Seismic Network, University of Texas, El Paso | USA | |||
| ERD | Earthquake Research Department | Turkey | Ankara | ||
| ET | CERI Southern Appalachian Seismic Network, University of Memphis | USA | |||
| 2024-10-30 | EW | Earthquake Early Warning System (ShakeAlert) | United States | California | |
| 2024-11-19 | GCMT | Lamont-Doherty Earth Observatory (LDEO) | United States | New-York | |
| 2024-11-20 | GFU | Geophysical Institute of the Academy of Sciences | Czech Republic | Prague | |
| 2024-11-21 | 2024-11-21 | GFZ | GeoForschungsZentrum (GFZ) | Germany | Potsdam |
| 2024-11-17 | GSI | Geological Survey of Israel, Seismology Division | Israel | Tel Aviv | |
| 2024-11-21 | GNS | Geonet, GNS science | New Zealand | Lower Hutt | |
| 2024-10-23 | GRAL | National Center for Geophysical Research | Lebanon | Beirut | |
| 2024-11-21 | GSRAS | Geophysical Survey of the Russian Academy of Sciences | Russia | Obninsk | |
| 2024-11-21 | CSN | Departamento de Geofisica, Universidad de Chile | Chile | Santiago | |
| 2019-07-10 | HSNC | Technological Educational Institute of Crete, Seismological Network of Crete | Greece | Chania | |
| 2024-11-21 | HV | Hawaiian Volcano Observatory Network, Hawaiian Volcano Observatory | United States | Hilo | |
| HW | Hanford Washington Seismic Network, Pacific Northwest National Laboratory | USA | |||
| 2024-07-06 | ICGC | Instituto Cartografic i Geologic de Catalunya | Spain | Barcelona | |
| IE | Idaho National Engineering Laboratory, University of Utah, Network Contact | USA | |||
| 2024-05-01 | IGC | Universidad de Panama | Panama | Panama | |
| 2024-11-10 | IGUT | Institute of Geophysics, University of Tehran | Iran | Tehran | |
| II | IRIS/IDA Network, University of California, Scripps Institute of Oceanography | USA | |||
| 2024-11-19 | IMO | Department of Geophysics, Icelandic Meteorological Office | Iceland | Reykjavik | |
| 2024-11-21 | IPMA | Instituto Portugues do Mar e da Atmosfera | Portugal | Lisbon | |
| 2024-11-21 | INET | Instituto Nicaraguense de Estudios Territoriales | Nicaragua | Managua | |
| 2024-11-20 | 2024-11-10 | INGV | Instituto Nazionale di Geofisica e Vulcanologia | Italy | Rome |
| 2024-06-25 | INMT | Institut National de Meteorologie | Tunisia | Tunis | |
| 2024-10-09 | INSN | Irish National Seismic Network | Ireland | Dublin | |
| 2024-10-25 | IPEC | Institute of Physics of the Earth | Czech Republic | Brno | |
| 2024-11-20 | IPGP | IPGP - Geoscope | France | Paris | |
| 2012-04-14 | IRSA | Romanian Institute for Applied Seismology | Romania | Bucharest | |
| 2024-11-21 | ISF | University of Helsinki | Finland | Helsinki | |
| 2015-08-27 | ISN | Iraqi Meteorological Organisation and Seismology, Seismological Department | Iraq | Baghdad | |
| IU | IRIS/USGS Network, USGS Albuquerque Seismological Laboratory | USA | |||
| IW | Intermountain West Seismic Network, United States Geological Survey | USA | |||
| 2024-11-20 | JMA | Japan Meteorological Agency Seismic Network | Japan | Tokyo | |
| 2024-11-21 | 2024-11-18 | KOERI | Kandilli Observatory and Earthquake Research Institute | Turkey | Istanbul |
| 2024-11-12 | KIS | Kyrgyz Institute of Seismology, KIS (KIS) | Kyrgyzstan | Bishkek | |
| 2024-11-18 | KNMI | Koninklijk Nederlands Meteorologish Instituut | Netherlands | De Bilt | |
| KY | Kentucky Seismic and Strong Motion Network, Kentucky Geological Survey | USA | |||
| LB | Leo Brady Network, Sandia National Laboratory | USA | |||
| 2020-01-13 | LD | Lamont-Doherty Cooperative Seismographic Network, Lamont-Doherty Earth Observatory of Columbia University | USA | ||
| 2024-11-20 | LDG | Laboratoire de Detection et de Geophysique | France | Bruyeres-le-Chatel | |
| 2024-11-21 | LED | Landsamt fur Geologie, Rohstoffe und Bergbau | Germany | Freiburg | |
| 2024-11-21 | LIM | Instituto Geofisico del Peru | Peru | Lima | |
| 2024-11-20 | ARSO | Slovenian Environment Agency, Seismology Office | Slovenia | Ljubljana | |
| 2024-11-21 | LVV | Carpathian Seismological Department, Ukraine Academy of Science | Ukraine | Lviv | |
| 2024-11-21 | 2016-01-31 | IGN | Instituto Geografico Nacional | Spain | Madrid |
| 2024-11-20 | MB | Montana Regional Seismic Network, Montana Bureau of Mines and Geology | United States | Helena | |
| 2024-11-21 | MCSM | Ukrainian NDC, Main Center of Special Monitoring | Ukraine | Kyiv | |
| 2024-06-04 | MLT | Malta Seismic Network, Seismic Monitoring and Research Unit (SMRU), University of Malta | Malta | Imsida | |
| 2024-11-20 | 2023-08-08 | MET | Malaysian Meteorological Department | Malaysia | Kuala Lumpur |
| 2015-11-11 | MNSN | Malaysian Meteorological Department, Petaling Jaya, Selangor, Malaysia | Malaysia | Petaling Jaya | |
| 2023-05-30 | MOLD | Institute of Geophysics and Geology | Moldova | Chisinau | |
| MON | Direction de l'Environnement, de l'Urbanisme et de la Construction | Monaco | Monaco | ||
| 2024-11-20 | MSO | Montenegro Seismological Observatory | Montenegro | Podgorica | |
| 2024-11-21 | 2024-10-26 | NC | USGS Northern California Regional Network, USGS-Menlo Park, California | United States | Menlo Park |
| 2017-10-30 | NCMS | National Center of Meteorology and Seismology | United Arab Emirates | Abu Dhabi | |
| 2024-11-21 | NDI | India Meteorological Department, New Delhi, India | India | New Delhi | |
| NE | Northeastern United States Networks, Boston College | USA | |||
| 2024-11-21 | 2024-11-21 | NEIC | National Earthquake Information Center, U.S. Geological Survey | United States | Golden |
| 2024-11-18 | NORSAR | Norwegian Seismic Array | Norway | Kjeller | |
| 2024-11-18 | NM | Cooperative New Madrid Seismic Network, St. Louis University and University of Memphis | United States | Memphis | |
| 2024-11-19 | 2024-11-14 | NN | Western Great Basin/Eastern Sierra Nevada, University of Nevada, Reno | United States | Reno |
| 2024-11-21 | KNDC | Kazakhstan National Data Center | Kazakhstan | Almaty | |
| 2024-11-21 | 2024-11-05 | NOA | National Observatory of Athens, Geodynamic Institute | Greece | Athens |
| NP | United States National Strong-Motion Network, USGS - National Strong-Motion Program | USA | |||
| NQ | NetQuakes, USGS Menlo Park, California | USA | |||
| 2024-11-17 | 2015-07-23 | NRIAG | National Research Institute of Astronomy and Geophysics | Egypt | Cairo |
| 2024-11-21 | NSC | National Seismological Centre, Department of Mines and Geology | Nepal | Kathmandu | |
| 2024-11-21 | NSNA | Instituto Nacional de Prevencion Sismica (INPRES) | Argentina | Buenos Aires | |
| NSSC | National Syrian Seismological Centre | Syria | Damas | ||
| 2024-11-18 | NSSP | National Survey of Seismic Protection | Armenia | Yerevan | |
| 2024-11-20 | 2024-11-17 | OCA | Geoazur (Universite Cote d'Azur, IRD, CNRS, Observatoire de la Cote d'Azur) | France | Nice |
| 2014-11-17 | ODC | ORFEUS Data Center | Netherlands | De Bilt | |
| 2024-11-21 | OGS | Istituto Nazionale di Oceanografia e Geofisica Sperimentale - OGS | Italy | Trieste | |
| OH | Ohio Seismic Network, Ohio Geological Survey | USA | |||
| 2024-11-20 | OK | Oklahoma Seismic Network, University of Oklahoma | United States | Oklahoma City | |
| OMAN | Earthquake Monitoring Center of Oman , Sultan Qaboos University | Oman | Muscat | ||
| 2024-11-20 | OSC | Observatorio San Calixto | Bolivia | La Paz | |
| 2023-07-04 | OVPF | Observatoire Volcanologique du Piton de la Fournaise (OVPF - IPGP) | Reunion | La Plaine des Cafres | |
| 2024-11-20 | OVSG | Observatoire Volcanologique et Sismologique de Guadeloupe (OVSG - IPGP) | Guadeloupe | Basse-Terre | |
| 2024-05-28 | OVSM | Observatoire Volcanologique et Sismologique de Martinique (OVSM - IPGP) | Martinique | Martinique | |
| 2024-11-20 | PDA | Instituto Portugues do Mar e Atmosfera | Portugal | Lisbon | |
| PE | Penn State Network, Penn State University | USA | |||
| PG | Pacific Gas and Electric, Diablo Canyon, California, USA | USA | |||
| 2024-11-21 | PIVS | Philippine Inst. of Volcanology and Seismology, Quezon City, Philippines | Philippines | Manila | |
| 2024-11-21 | PR | Puerto Rico Seismic Network (PRSN) and Puerto Rico Strong Motion Program (PRSMP), University of Puerto Rico at Mayaguez | Puerto Rico | Mayagueez | |
| 2024-11-15 | PT | Pacific Tsunami Warning Seismic System, Pacific Tsunami Warning Center, Ewa Beach, Hawaii | United States | Ewa Beach | |
| 2024-11-15 | PTWC | Pacific Tsunami Warning Center | United States | Honolulu | |
| 2024-11-21 | QUI | Escuela Politecnica Nacional, Quito, Ecuador | Ecuador | Quito | |
| RE | US Bureau of Reclamation Seismic Networks, US Bureau of Reclamation, Denver Federal Center | USA | |||
| 2024-11-21 | ReNaSS | Reseau National de Surveillance Sismique | France | Strasbourg | |
| 2024-11-19 | RSBR | Rede Sismografica Brasileira | Brazil | Sao Paulo | |
| 2020-09-06 | RSNC | Red Sismica Nacional de Colombia, INGEOMINAS, Bogota, Colombia | Colombia | Bogota | |
| 2024-11-21 | RSSC | Republican Seismic Survey Center or Azerbaijan National Academy of Sciences | Azerbaijan | Baku | |
| 2024-11-19 | SASN | South African Seismological Network | South Africa | Pretoria | |
| SC | New Mexico Tech Seismic Network, New Mexico Tech, Socorro, New Mexico | USA | |||
| 2024-11-21 | 2024-11-20 | SC4 | EMSC | France | Arpajon |
| 2024-11-19 | SE | Southeastern Appalachian Cooperative Seismic Network, Virginia Tech, University of Memphis, Tennessee Valley Authority, and University of North Carolina | United States | Memphis | |
| 2024-11-21 | ETHZ | Swiss Seismological Service | Switzerland | Zurich | |
| 2024-11-14 | SEO | Korean Meteorological Administration | Korea, Republic of | Seoul | |
| SF | San Andreas Fault Observatory at Depth (SAFOD), Stanford University and USGS Menlo Park, Earthscope Project | USA | |||
| SGS | Saudian National Seismological Network | Saudi Arabia | Riyad | ||
| 2016-05-19 | SIK | Seismological Institute of Kosovo/UNMIK | Kosovo/UNMIK | Pristina | |
| 2022-08-06 | SKO | Seismological Observatory | North Macedonia, Republic of | Skopje | |
| 2024-11-20 | SNET | Servicio Nacional de Estudios Territoriales (SNET El Salvador) | El Salvador | San Salvador | |
| 2024-11-20 | SNSN | Swedish National Seismic Network | Sweden | Uppsala | |
| 2024-11-21 | SOF | National Institute in Geophysics, Geodesy and Geography - BAS | Bulgaria | Sofia | |
| 2024-11-20 | SORS | Republic Hydrometeorological Institute | Bosnia-Herzogovina | Banja Luka | |
| SPGM | Departement des Sciences de la Terre | Morocco | Rabat | ||
| 2024-11-21 | SSNC | Servicio Sismologico Nacional de Cuba (CENAIS) | Cuba | Havana | |
| 2024-11-21 | 2024-11-03 | THE | Aristotle University of Thessaloniki, Department of Geophysics | Greece | Thessaloniki |
| 2024-11-20 | IIEES | International Institute for Earthquake Engineering and Seismology | Iran | Tehran | |
| 2024-11-15 | TIF | Seismic Monitoring Centre of Georgia | Georgia | Tbilisi | |
| 2024-11-21 | 2024-11-17 | IGEO | Institute of Geosciences, Polytechnic University of Tirana | Albania | Tirana |
| 2024-11-18 | TRN | University of the West Indies, St. Augustine, Trinidad | Trinidad and Tobago | Saint Augustine | |
| 2024-11-21 | TSB | Thailand Seismological Bureau | Thailand | Bangkok | |
| 2024-11-21 | 2024-11-16 | TX | Bureau of Economic Geology, The University of Texas at Austin (BEG UTEXAS) | United States | Austin |
| 2024-11-21 | UASD | Universidad Autonoma de Santo Domingo | Dominican Republic | Santo Domingo | |
| 2024-11-14 | UCC | Royal Observatory of Belgium | Belgium | Brussels | |
| 2024-11-21 | UCR | Seccion de Sismologia, Univ. de Costa Rica, San Jose, Costa Rica | Costa Rica | San Jose | |
| 2024-11-21 | UNM | Servicio Sismologico Nacional, Instituto de Geofisica, UNAM | Mexico | Mexico City | |
| UO | University of Oregon Regional Network, University of Oregon | USA | |||
| 2021-04-02 | 2024-09-11 | UPSL | University of Patras Seismological Laboratory | Greece | Patras |
| US | US National Seismic Network, ANSS Backbone of the USGS-NEIC and USGS-ASL and Earthscope Project of IRIS | USA | Golden | ||
| 2024-11-20 | UU | University of Utah Regional Network, University of Utah Seismograph Stations | United States | Salt Lake City | |
| 2024-11-20 | UW | Pacific Northwest Regional Seismic Network, University of Washington, Seattle | United States | Seattle | |
| UZBK | Institute of Seismology, Uzbekistan Academy of Sciences | Uzbekistan | Tashkent | ||
| 2016-06-29 | VAO | Inst. de Astron., Geof. e Ciencias Atmos., Univ. de S?o Paulo, Brazil | Brazil | ||
| VEN | Fundación Venezolana de Investigaciones Sismológicas | Venezuela | Caracas | ||
| 2010-06-20 | WAR | Warsaw seismic network | Poland | Warsaw | |
| WR | California Division of Water Resources, California Division of Water Resources | USA | |||
| WY | Yellowstone Volcano Observatory Seismic Network, University of Utah Seismograph Stations | USA | |||
| 2024-11-15 | CSS | Croatian Seismological Survey, University of Zagreb | Croatia | Zagreb | |
| 2024-11-21 | GSA | GeoSphere Austria | Austria | Vienna | |