# 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 (DGF UChile Chile) CL (Chile) Chile C0 Colorado Geological Survey Seismic Network Colorado Geological Survey US (United States of America) United States of America 10.7914/SN/C0 C1 Red Sismologica Nacional Universidad de Chile CL (Chile) http://www.sismologia.cl/ Chile 10.7914/SN/C1 C2 Canadian National Geomagnetic Network Natural Resources Canada (NRCAN Canada) CA (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 AT (Austria) http://www.ce3rn.eu/ Austria 10.7914/SN/C3 C4 CERN Seismic Network CERN M7 (Multiple Countries) Multiple Countries C7 Red Sísmica Canaria Instituto Volcanológico de Canarias ES (Spain) Canary Islands, Spain 10.7914/SN/C7 C8 Canadian Seismic Research Network Geological Survey of Canada CA (Canada) http://www.earthquakescanada.nrcan.gc.ca/stndon/ Canada CA Catalan Seismic Network Institut Cartogràfic i Geològic de Catalunya-Institut d'Estudis Catalans ES (Spain) http://www.icgc.cat/xarxasismica Catalonia 10.7914/SN/CA CB Data Management Centre of China National Seismic Network at Institute of Geophysics, CEA Institute of Geophysics China Earthquake Administration (IGPCEA) CN (China) http://www.seisdmc.ac.cn China 10.7914/SN/CB CC Cascade Chain Volcano Monitoring Cascades Volcano Observatory/USGS US (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 (ASL)/USGS US (United States of America) United States of America 10.7914/SN/CD CE California Strong Motion Instrumentation Program California Division of Mines and Geology (CDMG) US (United States of America) United States of America CF Red Acelerografica Nacional de la Comision Federal de Electricidad (CFE) Comision Federal de Electricidad (CFE) MX (Mexico) Mexico CG Coso Microearthquake Network Geothermal Program Office/US Navy US (United States of America) United States of America CH Switzerland Seismological Network Swiss Seismological Service CH (Switzerland) Switzerland 10.12686/sed/networks/ch CI Southern California Seismic Network California Institute of Technology and United States Geological Survey Pasadena US (United States of America) http://www.scsn.org/ United States of America 10.7914/SN/CI CJ Community Seismic Network California Institute of Technology (Caltech) US (United States of America) http://csn.caltech.edu/ United States of America CK CAREMON Central Asian Cross-border network GEOFON Program (GFZ-Potsdam, Germany) DE (Germany) Central Asia CL Corinth Riff Laboratory Institut de Sciences de l'Univers (INSU) FR (France) Greece 10.15778/RESIF.CL CM Red Sismologica Nacional de Colombia INGEOMINAS - Servicio Geologico Colombiano (SGC Colombia) CO (Colombia) Colombia CN Canadian National Seismograph Network Geological Survey of Canada CA (Canada) http://www.earthquakescanada.nrcan.gc.ca/stndon/CNSN-RNSC/ Canada 10.7914/SN/CN CO South Carolina Seismic Network University of South Carolina US (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 University of Azores PT (Portugal) Portugal CQ Cyprus Broadband Seismological Network Geological Survey Department Cyprus CY (Cyprus) http://81.4.135.34:8080 Cyprus 10.7914/SN/CQ CR Croatian Seismograph Network University of Zagreb HR (Croatia) Croatia CS Caucusus Array Lamont Doherty Earth Observatory (LDEO), Columbia University US (United States of America) Russian Federation CT California Transect Network UC Santa Cruz US (United States of America) United States of America CU Caribbean USGS Network Albuquerque Seismological Laboratory (ASL)/USGS US (United States of America) Caribbean region 10.7914/SN/CU CV Vigil Network, Cape Verde Islands Instituto Superior Tecnico (IST Universidade Tecnica de Lisboa, Portugal) PT (Portugal) Portugal CW Servicio Sismologico Nacional de Cuba National Centre for Seismological Research (CENAIS Cuba) CU (Cuba) http://www.cenais.cu Cuba 10.7914/SN/CW CX Plate Boundary Observatory Network Northern Chile GFZ / IGPP / CSN / UdC / UCNA M7 (Multiple Countries) http://www.ipoc-network.org/index.php/data/cx-net.html Multiple Countries 10.14470/PK615318 CY Cayman Islands Cayman Islands Government KY (Cayman Islands) Cayman Islands CZ Czech Regional Seismic Network Institute of Geophysics, Academy of Sciences of the Czech Republic CZ (Czechia) http://www.ig.cas.cz/en/structure/observatories/czech-regional-seismological-network Czechia 10.7914/SN/CZ