# Network Code Network Name Network Operator Network Country (ISO & Name) Network Website Deployment Country (if different) Digital Object Identifier (DOI) C Chilean National Seismic Network Universidad de Chile, Dept de Geofisica Chile Chile C0 Colorado Geological Survey Seismic Network Colorado Geological Survey United States of America United States of America 10.7914/SN/C0 C1 Red Sismologica Nacional Universidad de Chile Chile http://www.sismologia.cl/ Chile 10.7914/SN/C1 C2 Canadian National Geomagnetic Network Natural Resources Canada Canada http://www.geomag.nrcan.gc.ca/obs/default-en.php Canada C3 Central and East European Earthquake Research Network Central and East European Earthquake Research Network Austria http://www.ce3rn.eu/ Austria 10.7914/SN/C3 C4 CERN Seismic Network European Organization for Nuclear Research Multiple Countries Multiple Countries 10.12686/sed/networks/c4 C5 University of Cambridge seismology University of Cambridge Earth Sciences United Kingdom https://www.esc.cam.ac.uk/directory/keith-priestley/seismology United Kingdom 10.7914/SN/C5 C7 Red Sísmica Canaria Instituto Volcanológico de Canarias Spain Canary Islands, Spain 10.7914/SN/C7 C8 Canadian Seismic Research Network Natural Resources Canada Canada http://www.earthquakescanada.nrcan.gc.ca/stndon/ Canada C9 Czech Microbarograph Network Institute of Atmospheric Physics of the Czech Academy of Sciences Czechia 10.7914/SN/C9 CA Catalan Seismic Network Institut Cartogràfic i Geològic de Catalunya Spain http://www.icgc.cat/xarxasismica Catalonia 10.7914/SN/CA CB China National Seismic Network, Data Management Centre of China National Seismic Network at Institute of Geophysics, CEA Institute of Geophysics China Earthquake Administration China http://www.seisdmc.ac.cn China 10.7914/SN/CB CC Cascade Chain Volcano Monitoring Cascades Volcano Observatory United States of America http://volcanoes.usgs.gov/observatories/cvo/ United States of America 10.7914/SN/CC CD China Digital Seismograph Network Albuquerque Seismological Laboratory/USGS United States of America United States of America 10.7914/SN/CD CE California Strong Motion Instrumentation Program California Division of Mines and Geology United States of America https://www.conservation.ca.gov/cgs/smip United States of America 10.7914/b34q-bb70 CF Red Acelerografica Nacional de la Comision Federal de Electricidad (CFE) Comision Federal de Electricidad Mexico Mexico CG Coso Microearthquake Network Geothermal Program Office/US Navy United States of America United States of America CH Switzerland Seismological Network Swiss Seismological Service Switzerland Switzerland 10.12686/sed/networks/ch CI Southern California Seismic Network California Institute of Technology and United States Geological Survey Pasadena United States of America http://www.scsn.org/ United States of America 10.7914/SN/CI CJ Community Seismic Network California Institute of Technology United States of America http://csn.caltech.edu/ United States of America 10.7914/0fd9-xz75 CK CAREMON Central Asian Cross-border network GEOFON Program (GFZ-Potsdam, Germany) Germany Central Asia CL Corinth Riff Laboratory Institut de Sciences de l'Univers France Greece 10.15778/RESIF.CL CM Red Sismológica Nacional de Colombia Servicio Geológico Colombiano Colombia https://www.sgc.gov.co/ Colombia 10.7914/SN/CM CN Canadian National Seismograph Network Natural Resources Canada Canada https://earthquakescanada.nrcan.gc.ca/stndon/CNSN-RNSC/index-en.php Canada 10.7914/SN/CN CO South Carolina Seismic Network University of South Carolina United States of America http://www.seis.sc.edu/projects/SCSN/ United States of America 10.7914/SN/CO CP CIVISA Seismo-Volcanic Monitoring Network-Azores Islands Centro de Informação e Vigilância Sismovulcânica dos Açores/University of Azores Portugal/Portugal Azores CQ Cyprus Broadband Seismological Network Geological Survey Department Cyprus Cyprus http://www.gsd-seismology.org.cy/ Cyprus 10.7914/SN/CQ CR Croatian Seismograph Network University of Zagreb Croatia Croatia 10.7914/SN/CR CS Caucusus Array Lamont Doherty Earth Observatory, Columbia University United States of America Russian Federation CT California Transect Network UC Santa Cruz United States of America United States of America CU Caribbean Network Albuquerque Seismological Laboratory/USGS United States of America Caribbean region 10.7914/SN/CU CV Vigil Network, Cape Verde Islands Instituto Superior Tecnico, Universidade Tecnica de Lisboa Portugal Portugal CW Servicio Sismologico Nacional de Cuba National Centre for Seismological Research Cuba http://www.cenais.cu Cuba 10.7914/SN/CW CX Plate Boundary Observatory Network Northern Chile GEOFON Program (GFZ-Potsdam, Germany) Germany http://www.ipoc-network.org/index.php/data/cx-net.html Germany 10.14470/PK615318 CY Cayman Islands Cayman Islands Government Cayman Islands Cayman Islands CZ Czech Regional Seismic Network Charles University in Prague/Institute of Geonics/Institute of Geophysics, Academy of Sciences of the Czech Republic/Institute of Physics of the Earth Masaryk University/Institute of Rock Structure and Mechanics Czechia/Czechia/Czechia/Czechia/Czechia https://www.ig.cas.cz/en/observatories/czech-regional-seismic-network/ Czech Republic 10.7914/SN/CZ