# Network Code Network Name Network Operator Network Country (ISO & Name) Network Website Deployment Country (if different) Digital Object Identifier (DOI) 4A Investigating mechanisms of subglacial hydrology and basal shear stress beneath Whillans Ice Stream using passive seismology UC Santa Cruz United States of America United States of America 10.7914/SN/4A_2008 4A Emersito Seismic Network for Site Effect Studies in L'Aquila town (Central Italy) Istituto Nazionale di Geofisica e Vulcanologia Italy http://www.ingv.it/it Italy 10.7914/SN/4A_2009 4A Darfield RAMP Aftershock Deployment, NZ University of Wisconsin, Madison United States of America United States of America 10.7914/SN/4A_2010 4A Pollino Seismic Experiment GEOFON Program (GFZ-Potsdam, Germany) Germany Germany 10.14470/9N904956 4A SP Crater Network Northern Arizona University United States of America United States of America 10.7914/SN/4A_2016 4A Imaging Yellowstone's shallow Magma Reservoir University of Utah United States of America United States of America 10.7914/vztw-bx83 4A Kamara Mine Network Aristotle University of Thessaloniki Greece Greece 10.7914/SN/4A_2021 4A Mapping the structure of the Duluth Complex & Animikie Basin U.S. Geological Survey United States of America United States of America 10.7914/SN/4A_2022 4B TASK FORCE KIRGISTAN GEOFON Program (GFZ-Potsdam, Germany) Germany Germany 4B Raft River EGS Lawrence Berkeley Laboratory United States of America United States of America 4B ANR-Remake Quito basin CEREMA France France 10.7914/SN/4B_2016 4B iTarg3T "Institute Earth Sciences ""Jaume Almera""" Spain https://eitrawmaterials.eu/project/itarg3t/ Spain 10.7914/SN/4B_2019 4B El Paso Iglesias University of Texas at El Paso United States of America United States of America 10.7914/SN/4B_2021 4B Seismometer to Investigate Ice and Ocean Structure (SIIOS) Field Experiment: Hiawatha Crater, Greenland University of Arizona/University of Maryland United States of America/United States of America United States of America 10.7914/aqbv-fc17 4B Seismic Network Around Kangaroo Eyre Yorke Australian National University Australia Australia 10.7914/9j20-yq91 4C Semipalatinsk Test Site Network Inst. of Geophysical Research National Nuclear Center of Republic of Kazakhstan Kazakhstan Kazakhstan 4C NERA-JRA1-A Observatoire de Grenoble, Grenoble France France 4C GeoGirls outreach experiment at Mount St. Helens USGS Vancouver WA United States of America United States of America 4C Summer of Applied Geophysical Experience Active Seismic 2016 IRIS PASSCAL Instrument Center @ New Mexico Tech United States of America United States of America 10.7914/SN/4C_2016 4C TIPTIMON AFGHANISTAN 2 Deutsches GeoForschungsZentrum GFZ Germany Germany 10.14470/9P7562848989 4C Inter-Wind Karlsruhe Institute of Technology Germany Germany 10.14470/9P982225 4D Seismological Experiments on Swiss Glaciers Swiss Seismological Service Switzerland Switzerland 10.12686/sed/networks/4d 4D Parkfield Experiment to Record Microseismicity and Tremor Karlsruhe Institute of Technology Germany Germany 4D Swiss temporary deployments on glaciers Swiss Seismological Service Switzerland Switzerland 10.12686/sed/networks/4d 4E MARS/Testing of cabled broadband OBS using MARS test facility University of California, San Diego United States of America United States of America 10.7914/SN/4E_2010 4E G9 Istituto Nazionale di Geofisica e Vulcanologia Italy Italy 4E Field Research Station broadband seismometer network University of Bristol United Kingdom United Kingdom 10.7914/SN/4E_2015 4E Raton 3C Nodes 2018 University of New Mexico United States of America United States of America 10.7914/SN/4E_2018 4E Valles 3C Node Transect University of New Mexico United States of America United States of America 10.7914/SN/4E_2019 4E Nodal seismic experiment at the Berkeley section of the Hayward fault UC Berkeley United States of America United States of America 10.7914/SN/4E_2020 4E Antarctica Ice Rift Experiment University of Maryland United States of America United States of America 10.7914/SN/4E_2022 4F Askja 2007 University of Cambridge United Kingdom United Kingdom 10.7914/SN/4F_2007 4F Temp-CNCH Escuela Politecnica Nacional-Instituto Geofisico Chile Chile 10.7914/SN/4F_2013 4F North Texas Earthquake Study: Venus (Johnson County), TX Southern Methodist University United States of America United States of America 10.7914/SN/4F_2015 4G EMSO-MOMAR Institut de Physique du Globe de Paris France http://www.emso-fr.org/EMSO-Azores France 4H EAL1 Australian National University Australia Australia 10.7914/SN/4H_2009 4H Nabro Urgency Array Birkbeck, University of London United Kingdom United Kingdom 10.7914/SN/4H_2011 4H Oklahoma State University Seismic Network Oklahoma State University United States of America United States of America 10.7914/SN/4H_2014 4H Mulhouse Seismo Citizen University of Strasbourg France France 4H Embayment Seismic Excitation Experiment 2022 University of Memphis 10.7914/SN/4H_2022 4H Stypsi Geothermal Field Network Aristotle University of Thessaloniki Greece Greece 10.7914/y3ye-nw95 4J AQ3 SW Queensland and NW New South Wales Australian National University Australia http://auspass.edu.au/networks/AQ3 Australia 10.7914/SN/4J_2014 4J Red sísmica Bioko Drexel University United States of America http://fdsn.org/networks/detail/4J_2017/ United States of America 10.7914/SN/4J_2017 4K UAE transects across the Semail Ophiolite Khalifa University United Arab Emirates United Arab Emirates 10.7914/SN/4K_2014 4K Ruegen Cliff Observatory Deutsches GeoForschungsZentrum GFZ Germany Germany 10.14470/9X7562122052 4K Mount Rainier 2023 University of Oregon 10.7914/3wth-ea89 4L IMAGE Reykjanes Deutsches GeoForschungsZentrum GFZ Germany Germany 10.14470/9Y7569325908 4L Canoe Reach Geothermal Field University of Calgary Canada Canada 10.7914/SN/4L_2017 4L Bedload Monitoring of Ephemeral Streams 2022 Nodal Portion New Mexico Tech United States of America United States of America 10.7914/SN/4L_2020 4L Tenerife-Gran Canaria Seismic Network (GUANCHE_INTEGRAL) Instituto Geográfico Nacional Spain Spain 10.7914/k0b6-a232 4M French Landslide Observatory / OMIV: Permanent seismological records on unstable slopes (OMIV) Observatoire multidisciplinaire des instabilités de versants France http://www.ano-omiv.cnrs.fr/ France 10.15778/RESIF.MT 4M Los Angeles Basin Seismic Experiment Louisiana State University United States of America United States of America 10.7914/SN/4M_2018 4M Seismic Campaign Around the Lombardian Pass network Geoazur France France 10.7914/SN/4M_2022 4N China-Western Australia Seismic array Macquarie University Australia Australia 10.7914/SN/4N_2017 4N Fast Response Aftershock network for the Moroccan Earthquake 2023 University of Cologne Germany Germany 10.7914/yc7s-en27 4O Longmen P Deutsches GeoForschungsZentrum GFZ Germany Germany 10.14470/9B7563261622 4O Sandia DAS Sandia National Laboratories United States of America United States of America 10.7914/m8py-h687 4P NSF EarthScope USArray Magnetotelluric Transportable and Backbone Arrays Incorporated Research Institutions For Seismology United States of America https://www.earthscope-program-2003-2018.org/articles/IRIS_Magnetic_Personality.html United States of America 10.7914/SN/4P_2006 4P Mpala wildlife 2019 University of Oxford United Kingdom United Kingdom 4P Carnegie Washington Backyard Network Carnegie Institution for Science United States of America United States of America 10.7914/SN/4P_2020 4P AdriaArray Temporary Network: Italy - north, south Istituto Nazionale di Geofisica e Vulcanologia Italy Italy 4Q GFZ contribution to the COSEISMIQ seismic network GEOFON Program (GFZ-Potsdam, Germany) Germany Germany 10.14470/9D7564946595 4Q WHOLESCALE survey at San Emidio, Nevada, USA University of Wisconsin-Madison United States of America United States of America 10.7914/m5qt-mh37 4R SEA-SEIS (Structure, Evolution And SEISmicity of the Irish offshore) Dublin Institute For Advanced Studies Ireland Ireland 4R Tower Lake area, in western Canada. Natural Resources Canada Canada https://www.bcogc.ca/news/commission-partnering-with-tower-lake-residents-for-seismic-testing/ Canada 10.7914/1yev-vt66 4R GEOREAL Deutsches GeoForschungsZentrum GFZ Germany Germany 4S STAK University of East Anglia United Kingdom United Kingdom 10.7914/SN/4S_2018 4S Active seismic imaging of a leaky CO2 fault system Boise State University United States of America United States of America 10.7914/SN/4S_2019 4S Serra La Nave Distributed Acoustic Sensing Experiment (Etna) Istituto Nazionale di Geofisica e Vulcanologia Italy Italy 10.7914/j0yz-kj67 4T Texas Seismological Network Bureau of Economic Geology, The University of Texas at Austin United States of America United States of America 10.7914/SN/4T_2018 4U Dry Alluvium Geology Gradiometry Sandia National Laboratories United States of America United States of America 10.7914/k8eh-jm65 4U São Jorge OBS Network University College London United Kingdom United Kingdom 10.7914/d5w4-v395 4V Aurora Vent Field Gakkel Ridge Alfred Wegener Institute Germany Germany 4W Coupling erosion, weathering, and hydrologic function in an active orogenic system University of Southern California 10.7914/bx86-t971