# Network Code Network Name Network Operator Network Country (ISO & Name) Network Website Deployment Country (if different) Digital Object Identifier (DOI) G GEOSCOPE - French Global Network of Seismological Broadband Stations Ecole et Observatoire des Sciences de la Terre/Institut de Physique du Globe de Paris/Observatoire Geoscope France/France/France http://geoscope.ipgp.fr Global 10.18715/GEOSCOPE.G G1 GEOTEM GEOTEM Mexico Mexico G2 GEOBEST Switzerland Eidgendssisch Technische Hochschule - Swiss Seismological Service Switzerland http://www.geobest.ethz.ch Switzerland 10.12686/SED/NETWORKS/G2 G3 Servicio Sismologico IN3, UMG Servicio Sismologico IN3 Guatemala Guatemala, Centro America 10.7914/SN/G3 GA GARNET Seismic Network Geological Survey of Japan Japan Japan GB Great Britain Seismograph Network British Geological Survey United Kingdom https://earthquakes.bgs.ac.uk/ United Kingdom 10.7914/av8j-nc83 GC UCLA Geonet Network UC Los Angeles United States of America http://lecs.cs.ucla.edu/wiki/index.php/GeoNet United States of America GD Global Positioning System (GPS) Displacement Measurements None Global GE GEOFON GEOFON Program (GFZ-Potsdam, Germany) Germany http://geofon.gfz-potsdam.de/ Global 10.14470/TR560404 GF Geophysical borehole Observatory at the North Anatolian Fault Deutsches GeoForschungsZentrum GFZ Germany http://www.gonaf.de/ Turkey GG Greenland Ice Sheet Monitoring Network IRIS HQ United States of America http://glisn.info/ Greenland 10.7914/SN/GG GH Ghana Digital Seismic Network Ghana Geological Survey Ghana Ghana 10.7914/SN/GH GI Red Sismologica Nacional Instituto Nacional de Sismologia, Vulcanologia, Meteorologia e Hidrologia Guatemala Guatemala 10.7914/SN/GI GL Guadeloupe Seismic and Volcano Observatory Network Institut de Physique du Globe de Paris France http://www.ipgp.fr/ovsg Guadeloupe, Lesser Antilles, Caribbean 10.18715/guadeloupe.gl GM U.S. Geological Survey Networks U.S. Geological Survey United States of America United States of America 10.7914/SN/GM GN Garni Dense Array USGS Menlo Park United States of America http://nsmp.wr.usgs.gov/geos/GARNI/garni.html Armenia GO National Seismic Network of Georgia Ilia State University- Seismic Monitoring Centre of Georgia Georgia https://ies.iliauni.edu.ge/ Georgia 10.7914/1yx9-8844 GP GPS Data Products for Solid Earth Science California Institute of Technology United States of America United States of America GQ German Strong Earthquake Network Federal Institute for Geosciences and Natural Resources Germany Germany GR German Regional Seismic Network Federal Institute for Geosciences and Natural Resources Germany https://www.seismologie.bgr.de/doi/grsn Germany 10.25928/mbx6-hr74 GS US Geological Survey Networks Albuquerque Seismological Laboratory/USGS United States of America Global 10.7914/SN/GS GT Global Telemetered Seismograph Network (USAF/USGS) Albuquerque Seismological Laboratory/USGS United States of America South America, Africa and Antarctica 10.7914/SN/GT GU Regional Seismic Network of North Western Italy University of Genoa Italy http://www.distav.unige.it/rsni Italy 10.7914/SN/GU GX GFZ Affiliated Stations Deutsches GeoForschungsZentrum GFZ Germany Global GY Geyokcha Array, Turkmenistan University of California, San Diego United States of America Turkmenistan 10.7914/SN/GY GZ ANKARA-NET Gazi University, Earthquake Engineering Implementation and Research Center Türkiye Türkiye