International Federation of Digital Seismograph Networks

Network Codes

The following network codes are assigned by the FDSN archive (IRIS DMC) to provide uniqueness to seismological data streams.

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network code network name network operator operator country deployment country/region DOI
X1 (2004-2005) Development and Testing of a Deep-Water, Acoustically-Linked, Moored- Buoy Seafloor Observatory Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America
X1 (2007-2008) Aysen Chile Aftershock Deployment University of Liverpool GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
X1 (2009-2010) Carbon Sequestration Technical Assessemnt-Pennsylvania Penn State University US: United States of America United States of America
X1 (2011-2012) Byrd Lake Reflection Seismics - Cresis Penn State University US: United States of America United States of America DOI
X1 (2013-2016) Réunion Hotspot and Upper Mantle Project University of Frankfurt DE: Germany Germany
X1 (2017-2018) Upper Geyser Basin Imaging Experiment FALL 2017 University of Utah US: United States of America United States of America DOI
X2 (2005-2006) NCISP4 Institute of Geology and Geophysics, CAS (CAS- Transect4) CN: China China DOI
X2 (2007-2008) Martinique 2007 Aftershock Experiment Observatoire de Grenoble, Grenoble FR: France France
X2 (2009-2010) Wellington Geophysical Transect (aka SAHKE) Victoria University of Wellington NZ: New Zealand New Zealand DOI
X2 (2011-2011) Seismic Wide-Angle across the RIFT Institut de Ciencies de la Terra "Jaume Almera" (ICTJA-CSIC) ES: Spain Spain DOI
X2 (2012-2012) Haida Gwaii OBS Experiment Natural Resources Canada (NRCAN Canada) CA: Canada Canada
X2 (2013-2015) Sunset Seismic Experiment Carnegie Institute of Washington / Science (DTM CIW) US: United States of America United States of America
X2 (2016-2016) Lake Pontchantrain Wind-Wave Monitoring Deployment Colorado State University (CSU) US: United States of America United States of America
X2 (2017-2019) Tarim Array for lithoSpheric signaTure of mantle plumE Institute of Geology and Geophysics, CAS (CAS ) CN: China China DOI
X3 (2006-2006) TAIGER active source explosion pilot test University of Southern California US: United States of America United States of America DOI
X3 (2007-2011) Understanding the current thinning and accelerration of the Jakobshavns Isbrae, Greenland University of Alaska, Fairbanks (UAF, AK USA) US: United States of America United States of America DOI
X3 (2013-2014) MARINER: Seismic Investigation of the Rainbow Hydrothermal Field University of Hawaii (UH) US: United States of America United States of America DOI
X3 (2015-2016) Momotombo 2015-2016 Carnegie Institute of Washington / Science (DTM CIW) US: United States of America United States of America DOI
X3 (2018-2018) Seismic Characterization and Tracking of Flash Floods in a Post-Fire Arid Canyon System University of South Florida (USF) US: United States of America United States of America DOI
X4 (2004-2005) TIPTEQ-Seismology (South) Universitat Potsdam DE: Germany Germany
X4 (2007-2009) Deep Structure of the Northeastern Tibet Collision Zone: INDEPTH IV Missouri University of Science & Technology(Former UM-Rolla)(Missouri S&T USA) US: United States of America United States of America DOI
X4 (2010-2014) Gulf of Mexico Basin Opening Texas Tech University US: United States of America United States of America
X4 (2016-2019) Active Fault Mapping DOI
X5 (2005-2005) Hole 1256D VSP Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America DOI
X5 (2007-2011) Hudson Bay Lithospheric Experiment University of Bristol (UK) GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
X5 (2012-2014) IGC Geothermal Test Site Ruhr Universitaet Bochum (RUB Germany) DE: Germany Germany
X5 (2015-2016) LF University of Patras GR: Greece Greece DOI
X5 (2017-2017) Lemon Creek Glacier - UTEP University of Texas at El Paso (UTEP) US: United States of America United States of America DOI
X5 (2018-2018) Determining the Shear Wave Velocity structure of Shallow Marine Sediments utilizing the MASW method University of North Florida (UNF) US: United States of America United States of America DOI
X6 (2007-2009) SLIP - Seismic Lithospheric Imaging of the Puna Plateau University of Missouri (MU) (Mizzou) US: United States of America United States of America DOI
X6 (2010-2011) MonaSeis Institute for Geosciences - Goethe University DE: Germany Germany
X6 (2012-2012) Evolution and hydration of the Juan de Fuca crust and uppermost mantle Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America DOI
X6 (2013-2013) Collaborative Research: Unlocking the Seismic Signature of Rivers UC Santa Cruz US: United States of America United States of America DOI
X6 (2014-2016) Homestake Gold Mine Three-dimensional, Broadband Array University of Minnesota-Twin Cities US: United States of America United States of America DOI
X6 (2018-2018) Experimental Multiblast Michigan Technological University (MTU) US: United States of America United States of America
X7 (2007-2009) Seismic Monitoring of Active Rock Fall Source Areas in the Yosemite National Park UC Berkeley US: United States of America United States of America DOI
X7 (2010-2014) PYRenean Observational Portable Experiment Reseau sismologique et géodésique français (RESIF) FR: France France DOI
X7 (2016-2018) Wallowa Uplift & Origin of the columbia River Basalts University of Oregon US: United States of America United States of America DOI
X8 (2007-2010) Studies of Earthquakes & Rapid Motions of Ice Lamont Doherty Earth Observatory (LDEO), Columbia University US: United States of America United States of America
X8 (2011-2011) Coulman High VSP, Antarctica, 2010 UC Santa Barbara US: United States of America United States of America DOI
X8 (2012-2017) Deep Structure of Three Continental Sutures in Eastern North America Rutgers University US: United States of America United States of America DOI
X9 (2004-2007) Monitoring an active rift system at the front of the Amery Ice Shelf, East Antarctica University of Chicago US: United States of America United States of America DOI
X9 (2008-2011) Dallas Earthquake Swarm Southern Methodist University (SMU TX) US: United States of America United States of America DOI
X9 (2012-2013) Plate Boundary Evolution and Physics at an Oceanic Transform Fault System Oregon State University (OSU USA) US: United States of America United States of America DOI
X9 (2015-2016) Klyuchevskoy volcanic group experiment Innstitute of Volcanology and Seismology, Russian Academy of Sciences RU: Russian Federation Russian Federation
X9 (2017-2018) Moment tensor inversion, perforation Sandia National Laboratories US: United States of America United States of America DOI
XA (1969-1977) Apollo Passive Seismic Experiments NASA Goddard Space Flight Center (GSFC) US: United States of America United States of America DOI
XA (1979-1979) Gulf of California Oblique Seismic Experiment Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America DOI
XA (1983-1983) Costa Rica Seismic Experiment Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America
XA (1987-1988) PANDA -- San Juan, Argentina Experiment University of Memphis, CERI US: United States of America United States of America
XA (1990-1990) Pinon Flats Small Aperture Array Study IRIS/PASSCAL DOI
XA (1991-1991) Pinon Array Experiment II IRIS/PASSCAL DOI
XA (1992-1992) Joshua Tree Aftershock IRIS/PASSCAL DOI
XA (1993-1993) NTS IRIS/PASSCAL DOI
XA (1994-1994) Northridge Aftershock Studies IRIS/PASSCAL DOI
XA (1995-1996) Missouri to Massachusetts Array IRIS/PASSCAL DOI
XA (1997-1999) A Multidisciplinary Experiment across the Kaapvaal Craton IRIS/PASSCAL DOI
XA (2000-2001) LIGO Noise Study IRIS/PASSCAL DOI
XA (2002-2003) Bhutan Pilot Experiment IRIS/PASSCAL DOI
XA (2004-2007) Collaborative Research: Mechanics of Dry-Land Calving of Ice Glaciers IRIS/PASSCAL DOI
XA (2008-2009) Monitgoring seismicity associated with a possible asperity on the Cascadia megathrust Oregon State University (OSU USA) US: United States of America United States of America DOI
XA (2010-2010) Sismic Imaging of the Moroccan Atlas Institut de Ciencies de la Terra "Jaume Almera" (ICTJA-CSIC) ES: Spain Spain DOI
XA (2011-2011) Using Fault-Zone Trapped Waves to Document Subsuface Rock Damage Caused by the M6.3 Earthquake in Ne University of Southern California US: United States of America United States of America DOI
XA (2013-2016) GANSSER: Swiss BB seismic experiment in Bhutan Swiss Seismological Service CH: Switzerland Switzerland DOI
XA (2017-2021) The Caucasus Seismic Network: The Uplift and Structure of the Greater and Lesser Caucasus University of Missouri (MU) (Mizzou) US: United States of America United States of America DOI
XB (1977-1982) Viking Mission Institut de Physique du Globe de Paris FR: France France
XB (1985-1985) Son of BOSE Oblique Seismic Experiment Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America DOI
XB (1989-1990) UC Mammoth/Long Valley network None :
XB (1992-1992) Landers Aftershock IRIS/PASSCAL DOI
XB (1993-1995) Southwest Pacific IRIS/PASSCAL DOI
XB (1996-1996) A study of the Abitibi-Greenville lithoshpere by teleseismic analyses IRIS/PASSCAL DOI
XB (1997-1999) A Broadband study of the tectonics and structure of the Antarctic Peninsula and Scotia Sea Regions IRIS/PASSCAL DOI
XB (2000-2002) Array studies of anisotropy and converted phases in the Marlborough Fault Zone of New Zealand IRIS/PASSCAL DOI
XB (2003-2004) Magdalena Ridge Observatory site noise study IRIS/PASSCAL DOI
XB (2005-2007) Broadband Seismic Investigation of the Cameroon Volcanic Line IRIS/PASSCAL DOI
XB (2008-2008) Costa Rica Active Source OBS Experiment Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America
XB (2009-2013) Program to Investigate Convective Alboran Sea System Overturn University of Oregon US: United States of America United States of America DOI
XB (2014-2014) Sweetwater Array IRIS PASSCAL Instrument Center @ New Mexico Tech US: United States of America United States of America DOI
XB (2016-2022) InSight Mission Data Institut de Physique du Globe de Paris FR: France France
XC (1977-1977) Blake-Bahama Oblique Seismic Experiment Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America DOI
XC (1987-1987) SouthWest Indian Ridge VSP Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America DOI
XC (1988-1989) RESERVED IRIS/PASSCAL
XC (1991-1992) Tibetan Plateau Passive-Source Experiment IRIS/PASSCAL DOI
XC (1993-1993) PANDA -- Hawaii Experiment University of Memphis, CERI US: United States of America United States of America
XC (1994-1994) Olympics IRIS/PASSCAL DOI
XC (1995-1996) Cooperative Project on South Island New Zealand IRIS/PASSCAL DOI
XC (1998-1999) Namibia GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XC (2000-2001) Geodynamics of the Yellowstone Hotspot from Seismic and GPS imaging IRIS/PASSCAL DOI
XC (2002-2002) Geodynamics of Indentor Corners IRIS/PASSCAL DOI
XC (2003-2005) Geodynamics of the Tibetan Plateau and the Origin of Great Earthquakes in Western China Albuquerque Seismological Laboratory (ASL)/USGS US: United States of America United States of America
XC (2006-2010) Collaborative Research: Understanding the causes of continental intraplate tectonomagmatism: A case study in the Pacific Northwest Arizona State University US: United States of America United States of America DOI
XC (2011-2011) Pacaya Tremor Michigan Technological University (MTU) US: United States of America United States of America DOI
XC (2012-2014) Observing Pine Island Glacier (PIG) ice shelf deformation and fracture using a GPS and Seismic Network New York University (NYU USA) US: United States of America United States of America DOI
XC (2016-2021) Pantanal, Chaco and Paraná (PCPB) structural studies network IAG-USP (Institute of Astronomy, Geophysics & Atmospheric Science -Univ. of Sao Paulo) BR: Brazil Brazil
XD (1979-1979) Galopogas Oblique Seismic Experiment Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America DOI
XD (1989-1989) Low Frequency Acoustic Seismic Experiment Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America DOI
XD (1991-1992) Tararua BB Array, New Zealand None :
XD (1994-1995) Seismic investigations of the Lithospheric Structure of the Tanzanian Craton IRIS/PASSCAL DOI
XD (1996-1998) Seismic study of the Iceland hotspot IRIS/PASSCAL DOI
XD (1999-2000) Natural Seismicity Investigation of Active Continental Breakup in the Woodlark Basin IRIS/PASSCAL DOI
XD (2001-2001) Broadband Seismic Studies of Dome Growth at Merapi Volcano, Indonesia IRIS/PASSCAL DOI
XD (2002-2006) Broadband Seismic Experiment in Various Regions in China IRIS/PASSCAL DOI
XD (2007-2010) Development of A Power and Communication for Remote Autonomous GPS and Seismic Stations in Antarctica IRIS/PASSCAL DOI
XD (2011-2013) Passive seismic study of a magma-dominated rift: the Salton Trough Stanford University US: United States of America United States of America DOI
XD (2014-2016) Collaborative Research: Illuminating the architecture of the greater Mount St. Helens magmatic systems from slab to surface University of Washington US: United States of America United States of America DOI
XD (2017-2017) Maupasacq CNRS (Centre National Recherche Scientifique) FR: France France DOI
XD (2018-2019) Alaska Community OBS Experiment IRIS OBSIP (OBSIP) US: United States of America United States of America
XE (1989-1992) PANDA -- New Madrid Experiment University of Memphis, CERI US: United States of America United States of America
XE (1994-1995) Broadband Study of the Altiplano and Central Andes IRIS/PASSCAL DOI
XE (1996-1996) Iceland Plate Boundary Hazard Survey IRIS/PASSCAL DOI
XE (1997-1998) Eifel Plume GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XE (1999-2001) Broadband Experiment Across the Alaska Range University of Alaska, Fairbanks (UAF, AK USA) US: United States of America United States of America DOI
XE (2002-2002) Torfajokull 2002 Nordic Volcanological Institute (NORDVULK Iceland) IS: Iceland Iceland
XE (2003-2004) Geodynamics of Indentor Corners IRIS/PASSCAL DOI
XE (2005-2007) Sierra Nevada EarthScope Project EarthScope Transportable Array DOI
XE (2008-2008) TICO-CAVA Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America
XE (2009-2011) Sierra Negra Array Galapagos University of Rochester US: United States of America United States of America DOI
XE (2012-2014) Seismic Activity of Low Angle Normal Faults in Death Valley, Caifornia. University of Washington US: United States of America United States of America DOI
XE (2015-2015) Study of the Socorro Magma Body New Mexico Tech US: United States of America United States of America DOI
XE (2016-2017) pedernales Geoazur (Geoazur) FR: France France DOI
XE (2018-2019) Pacific Array - Haxby IRIS HQ (DC) US: United States of America United States of America
XF (1987-1992) Anza Borehole Experiment IRIS/PASSCAL
XF (1994-1994) Peninsular Range IRIS/PASSCAL DOI
XF (1995-1996) Microearthquake Monitoring of Ice Stream C, West Antarctica IRIS/PASSCAL DOI
XF (1997-1999) GEDEPTH-II GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XF (2000-2001) Laramie Telemetered Broad-band Array IRIS/PASSCAL
XF (2002-2005) Collaborative Research: Lithospheric Scale Dynamics of Active Mountain Building along the Himalayan-Tibetan Collision Zone IRIS/PASSCAL DOI
XF (2006-2007) Mapping the Rivera Subduction Zone IRIS/PASSCAL DOI
XF (2008-2008) Red Seismological Experiment Universidad de Chile, Dept de Geofisica (DGF UChile Chile) CL: Chile Chile
XF (2009-2011) Collaborative Research: Relating glacier-generated seismicity to ice motion, basal processes and iceberg calving. University of Alaska, Fairbanks (UAF, AK USA) US: United States of America United States of America DOI
XF (2012-2013) Mantle serpentinization and water cycling through the Mariana Trench and Forearc Washington University in St. Louis (WUSTL) US: United States of America United States of America DOI
XF (2014-2016) Understanding Precambrian to Present Assembly of Greenland Columbia University US: United States of America United States of America DOI
XF (2017-2017) INFRA-ETNA University of Liverpool GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland DOI
XF (2018-2019) Hazard in Tanzanian Rift CNRS (Centre National Recherche Scientifique) FR: France France
XG (1992-1992) Rocky Mountain Front II IRIS/PASSCAL DOI
XG (1994-1994) Anisotropy AI GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XG (1995-1996) Crustal Reworking During Orogeny: An Active System Himalayan Perspective IRIS/PASSCAL DOI
XG (1997-1998) Amazon GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XG (1999-2001) Eastern Turkey Seismic Experiment: Lithospheric Structure in an Active Continental Collision Zone IRIS/PASSCAL DOI
XG (2002-2008) A Comparative Study of Natural and Man-Induced Seismicity in the Yanquing-Huailai Basin and the Haicheng Area IRIS/PASSCAL DOI
XG (2009-2011) Cascadia Array of Arrays University of Washington US: United States of America United States of America DOI
XG (2012-2013) Underground Array University of Minnesota-Twin Cities US: United States of America United States of America
XG (2014-2014) Barcelonnette 2014 aftershock sequence Sismos a l'Ecole, Geosciences Azur FR: France France DOI
XG (2015-2015) Colorado River Runoff Pilot Project New Mexico Tech US: United States of America United States of America DOI
XG (2016-2016) Universidad Tecnica de Ambato Technical University of Ambato (UTA) EC: Ecuador Ecuador DOI
XG (2017-2017) San Bernardino Basin (USGS) - Jan 2017 nodal deployment Louisiana State University US: United States of America United States of America DOI
XG (2018-2018) Rattlesnake Ridge 2018 University of Oregon US: United States of America United States of America DOI
XG (2019-2019) Svalbard - Vallunden Universite Joseph Fourier - Grenoble (LGIT-UJF-France) FR: France France
XH (1994-1995) Basin & Range Add On IRIS/PASSCAL DOI
XH (1996-1997) Altiplano-Puna Volcanic Complex Seismic Experiment IRIS/PASSCAL DOI
XH (1998-1999) TransAlp-1 GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XH (2000-2000) ISSA2000 GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XH (2001-2001) START IRIS/PASSCAL
XH (2002-2003) Integrated Seismological Studies of Crust and Upper Mantle Structure in Western Anatolia IRIS/PASSCAL DOI
XH (2004-2004) Seismic Array Studies of Cascadia Deep Tremor IRIS/PASSCAL DOI
XH (2005-2006) Cascade Tiltmeter Array Central Washington University US: United States of America United States of America
XH (2007-2007) Hawaiian South Flank Slow EQ Project University of Wisconsin, Madison US: United States of America United States of America DOI
XH (2008-2010) Lithospheric Structure above the variably dipping Nazca Slab Purdue University US: United States of America United States of America DOI
XH (2011-2011) Seismic Survey of Greeland Icesheet Margins ETHZ (Swiss Federal Institute of Technology, Zurich Switzerland) CH: Switzerland Switzerland DOI
XH (2012-2013) Small aperture array for observing a slow slip event on Kilauea volcano. University of Wisconsin, Madison US: United States of America United States of America DOI
XH (2014-2017) Collaborative Research: Collaborative Research: Dynamic Response of the Ross Ice Shelf to Ocean Waves and Structure and Dynamics of the Ross Sea from a Passive Seismic Deployment on the Ross Ice Shelf Scripps Institution of Oceanography (SIO) US: United States of America United States of America DOI
XH (2018-2019) PREST in Cuba IPGP - Observatoire Volcanologique de la Montagne Pelee (OVMP) FR: France France
XI (1994-1994) GEDEPTH 1 GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XI (1995-1997) Broadband Seismic Characterization of the Arabian Shield IRIS/PASSCAL DOI
XI (1998-1999) Study of Changbai Volcanoes and Deep Subduction Zone IRIS/PASSCAL DOI
XI (2000-2002) Seismic Investigation of Deep Structure Beneath the Ethiopian Plateau and Afar Depression IRIS/PASSCAL DOI
XI (2003-2004) TAG Hydrothermal Mound Passive Seismic Experiment Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America
XI (2005-2005) 3D Tomographic Imaging of the Chicxulub Crater Imperial College London (Imperial UK) GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
XI (2006-2006) Characterization of High Frequency Noise Generated at the South Pole Station, Antarctica IRIS HQ (DC) US: United States of America United States of America DOI
XI (2007-2010) Collision of the Burma Arc accretionary prism and foldbelt with the Ganges-Brahmaputra Delta in Bangladesh Lamont Doherty Earth Observatory (LDEO), Columbia University US: United States of America United States of America DOI
XI (2011-2013) Superior Province Rifting Earthscope Experiment Northwestern University US: United States of America United States of America DOI
XI (2014-2014) Long Beach Broadband or LA Syncline Seismic Interferometry Experiment NodalSeismic US: United States of America United States of America DOI
XI (2015-2017) Enid OK Network Cornell University US: United States of America United States of America
XI (2018-2019) Instrumentation for Multidisciplinary Monitoring of an Alaskan Peatland U.S.G.S- Crustal Geophysics & Geochemistry Science Center US: United States of America United States of America DOI
XJ (1988-1988) Argo Abyssal Plain VSP Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America DOI
XJ (1994-1994) RESERVED IRIS/PASSCAL
XJ (1995-1996) Adirondack Broadband Campaign IRIS/PASSCAL DOI
XJ (1997-1997) The Sierran Paradox Experiment IRIS/PASSCAL DOI
XJ (1998-1999) Side Edge of Kamchatka Subduction IRIS/PASSCAL DOI
XJ (2000-2001) Shear-wave Splitting in the Snake River Plain IRIS/PASSCAL DOI
XJ (2002-2003) Ethiopian Afar Geophysical Lithospheric Experiment Royal Holloway, University of London GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
XJ (2004-2006) Seismic Experiment in the Aisen Region of Chile University of Cambridge (UK) Earth Sciences GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
XJ (2007-2007) Tomo TEIDEVS University of Liverpool GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
XJ (2008-2008) Wells, Nevada Aftershock Recording University of Nevada (UNR Reno) US: United States of America United States of America DOI
XJ (2009-2009) L' Aquila Aftershock Experiment Reseau sismologique et géodésique français (RESIF) FR: France France DOI
XJ (2010-2010) High-resolution imaging of magma transport at the summit of Kilauea Volcano USGS Hawaiian Volcano Observatory (HVO) US: United States of America United States of America DOI
XJ (2011-2011) Gulf of Mexico Hydrates Research Consortium Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America
XJ (2012-2012) Fuego Volcano VLP and tilt experiment Michigan Technological University (MTU) US: United States of America United States of America DOI
XJ (2013-2015) Magadi-Natron Magmatic Rifting Studies University of Rochester US: United States of America United States of America DOI
XJ (2016-2017) Impact of subglacial discharge on turbulent plume dynamics and ocean-glacier heat and mass transfer University of Alaska Southeast (UAS) US: United States of America United States of America DOI
XJ (2018-2022) Deployments associated with OBS deployments in Swiss Lakes ETHZ (Swiss Federal Institute of Technology, Zurich Switzerland) CH: Switzerland Switzerland
XK (1993-1994) RESERVED IRIS/PASSCAL
XK (1995-1995) ICEMELT, Anarctica IRIS/PASSCAL
XK (1996-1996) Chicxulub Impact Crater, Yucatan IRIS/PASSCAL
XK (1997-1997) Teleseismic Studies in the Western Superior Transect, Canada IRIS/PASSCAL DOI
XK (1998-1998) Seismic Monotoring of Merapi Volcano, Indonesia IRIS/PASSCAL DOI
XK (1999-2000) Lithospheric Structure and Evolution of the Rocky Mountain Transect IRIS/PASSCAL DOI
XK (2001-2003) Reflections Under the Scottish Highlands: A Broadband Investigation of Upper Mantle Reflectors in Scotland IRIS/PASSCAL DOI
XK (2004-2006) RISTRA 1.5 -- Colorado Plateau Extension IRIS/PASSCAL DOI
XK (2007-2009) POLENET/LAPNET Reseau sismologique et géodésique français (RESIF) FR: France France DOI
XK (2010-2010) Big Horn Project Regional Array Deployment Los Alamos National Laboratory (LANL, NM) US: United States of America United States of America
XK (2011-2011) Passive seismic for geothermal exploration, Fairmont, Montana Montana Bureau of Mines and Geology/Montana Tech (MBMG, MT USA) US: United States of America United States of America DOI
XK (2012-2014) Seismic Arrays for African Rift Initation Missouri University of Science & Technology(Former UM-Rolla)(Missouri S&T USA) US: United States of America United States of America DOI
XK (2015-2015) Seismic Array of the Sevilleta University of New Mexico (UNM) US: United States of America United States of America
XK (2016-2016) Delineating preferential flow paths from recharge for water planning and management New Mexico Tech US: United States of America United States of America DOI
XK (2017-2019) Ivrea - AlpArray Complementary Experiment University of Lausanne (UNIL) CH: Switzerland Switzerland
XL (1994-1994) Sierras Broadband II IRIS/PASSCAL DOI
XL (1995-1996) North Korea Nuclear Site Investigation IRIS/PASSCAL DOI
XL (1997-1997) An asthenosphere-lithosphere probe in North America IRIS/PASSCAL DOI
XL (1998-1998) Santa Clara Valley Fill structure IRIS/PASSCAL DOI
XL (1999-2001) San Francisco/Oakland Dense Array 2000 IRIS/PASSCAL DOI
XL (2002-2007) COnsortium for Arizona Reconnaissance Seismic Experiment None :
XL (2008-2011) Collaborative Research: Dynamic controls on tidewater glacier retreat University of Colorado Boulder (CU) US: United States of America United States of America DOI
XL (2012-2016) Hangay Dome, Mongolia Lehigh University US: United States of America United States of America DOI
XL (2017-2020) McGill Dawson-Septimus Induced Seismicity Study McGill University (Canada) CA: Canada Canada
XM (1994-1994) New Zealand Study IRIS/PASSCAL DOI
XM (1995-1996) Wabash Valley Array Study IRIS/PASSCAL DOI
XM (1997-1997) TOMOG 3D IRIS/PASSCAL
XM (1998-1998) Ocean Seismic Network Exp. IRIS/PASSCAL DOI
XM (1999-2001) Colorado Plateau/Rio Grand Rift/Great Plains Seismic Transect IRIS/PASSCAL DOI
XM (2002-2003) Ethiopia-Afar Geoscientific Lithospheric Experiment 6TD Passive Array University of Leicester (SEIS UK) GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
XM (2004-2004) Vestmanna04 (SeiFaBa Project) University of Cambridge (UK) Earth Sciences GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
XM (2005-2006) ALPASS IRIS/PASSCAL
XM (2007-2010) Western Tibet passive array deployment IRIS/PASSCAL
XM (2011-2011) Broadband recording at the site of great earthquake rupture in the Alaska Megathrust University of Oklahoma (OU) US: United States of America United States of America DOI
XM (2012-2013) ARGOS - Alutu and Regional Geophysical Observation Study SEIS-UK University of Bristol (UK) GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
XM (2016-2016) Poroelastic Tomography at Brady Geothermal Field University of Wisconsin, Madison US: United States of America United States of America DOI
XM (2017-2018) Geothermal Seismic Exploration and Monitoring Via Ambient Seismic Noise Interferometry Baylor University US: United States of America United States of America DOI
XN (1994-1995) TOR-0 GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XN (1996-1996) Irian Jaya RAMP IRIS/PASSCAL DOI
XN (1998-1999) Los Angeles Region Seismic Experiment -- Passive Phase IRIS/PASSCAL DOI
XN (2000-2002) Parkfield Passive Seismic Array University of Wisconsin, Madison US: United States of America United States of America DOI
XN (2003-2005) Collaborative Research: Canadian Northwest Seismic Experiment IRIS/PASSCAL DOI
XN (2006-2006) TaskForce_Java GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XN (2007-2007) Deep Structure of the Nortwaster Tibet Collison Zone Stanford University US: United States of America United States of America DOI
XN (2008-2009) Bolivar: Western Venezuela Rice University US: United States of America United States of America DOI
XN (2010-2010) Monitgoring seismicity associated with a possible asperity on the Cascadia megathrust Oregon State University (OSU USA) US: United States of America United States of America DOI
XN (2011-2013) joint summer field camp BSU/CSM/Imperial College of London Boise State University US: United States of America United States of America DOI
XN (2014-2014) Dynamic Response of the Ross Ice Shelf to to Wave Induced Vibrations Scripps Institution of Oceanography (SIO) US: United States of America United States of America DOI
XN (2015-2020) Gorkha Earthquake 2015 GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XO (1995-1995) CINCA95 GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XO (1996-1996) ANCORP96-AN GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XO (1997-1999) The Origins of Mantle Anisotropy beneath Eastern North America Brown University US: United States of America United States of America DOI
XO (2000-2001) Santa Clara Valley 2000 USGS Menlo Park US: United States of America United States of America DOI
XO (2003-2004) US-Japan Collaborative Research: Multi-scale seismic imaging of the Mariana Subduction Factory IRIS/PASSCAL DOI
XO (2005-2005) Eastern Black Sea Seismic Experiment University of Southampton (UK) GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
XO (2006-2006) NOISY Stanford University US: United States of America United States of America
XO (2007-2009) INDEPTH IV University of Cambridge (UK) Earth Sciences GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
XO (2010-2010) Deep Fault Drilling Project, Alpine Fault, New Zealand: Whataroa-Wanganui Passive Seismology Experiment 2010 Victoria University of Wellington NZ: New Zealand New Zealand DOI
XO (2011-2015) Ozark Illinois Indiana Kentucky (OIINK) Flexible Array Experiment Indiana University Bloomington (IU Bloomington) US: United States of America United States of America DOI
XO (2016-2017) Seismic Network for Site Effect Studies in Amatrice Area (Central Italy) Istituto Nazionale di Geofisica e Vulcanologia (INGV) IT: Italy Italy DOI
XO (2018-2019) AACE: Alaska Amphibious Community seismic Experiment Cornell University US: United States of America United States of America DOI
XP (1994-1995) High resolution experiment along the Hikurangi subduction zone in New Zealand. IRIS/PASSCAL DOI
XP (1998-1998) TaskForce Adana 1998 GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XP (2000-2004) A Broadband Seismic Investigation of Deep Continental Structure Across the East-West Antarctic Boundary IRIS/PASSCAL DOI
XP (2005-2007) Discrete vs. Continuous Continental Deformation and the Role of the Lower Crust in the Tien Shan IRIS/PASSCAL DOI
XP (2008-2009) Colorado Rockies Experiment and Seismic Transect New Mexico Tech US: United States of America United States of America DOI
XP (2010-2013) Investigating the relationship between pluton growth and volcanism at two active intrusions in the central Andes University of Alaska, Fairbanks (UAF, AK USA) US: United States of America United States of America DOI
XP (2014-2014) VOLCARRAY Reseau sismologique et géodésique français (RESIF) FR: France France DOI
XP (2015-2019) Seismic Experiment for Imaging Structure beneath Connecticut Yale University US: United States of America United States of America DOI
XQ (1995-1995) Green River Experiment IRIS/PASSCAL
XQ (2001-2002) Hikurangi Subduction System (New Zealand) Seismic Transects IRIS/PASSCAL DOI
XQ (2003-2005) Oregon Array for Teleseismic Study University of Wisconsin, Madison US: United States of America United States of America
XQ (2006-2006) Collaborative Research: Understanding Fault Zone Compliance by Seismic Probing of InSAR Anomalies IRIS/PASSCAL DOI
XQ (2007-2009) Seismic and Geodetic Investigations of Mendocino Triple Junction Dynamics University of Oregon US: United States of America United States of America DOI
XQ (2010-2010) Pismo BeachNet Cuesta Community college US: United States of America United States of America
XQ (2011-2011) NEESR-CR: Topographic Effects in Strong Ground Motion - From Physical and Numerical Modeling to Design University of Arkansas - Fayetteville US: United States of America United States of America DOI
XQ (2012-2014) Pre-Hydrofracking Regional Assessment of Central Carolina Seismicity Carnegie Institute of Washington / Science (DTM CIW) US: United States of America United States of America DOI
XQ (2015-2016) Rapid response to the Mw 7.9 earthquake of April 25, 2015 in Nepal Oregon State University (OSU USA) US: United States of America United States of America
XQ (2017-2018) TROODOS: Tomography and Receiver function Observations of an Ophiolite using Data Obtained from Seismology Imperial College London (Imperial UK) GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland DOI
XR (1994-1994) INDEPTH II IRIS/PASSCAL
XR (1997-1999) INDEPTH-III IRIS/PASSCAL DOI
XR (2001-2002) The Florida to Edmonton Broadband Experiment IRIS/PASSCAL DOI
XR (2003-2003) Mammoth 2003 IRIS/PASSCAL
XR (2004-2007) CSEDI: Observational and Theoretical Constraints on the Structure and Rotation of the Inner Core IRIS/PASSCAL DOI
XR (2008-2011) Seismic Investigation of Edge Driven Convection Associated with the Rio Grande Rift. University of Texas at Austin US: United States of America United States of America DOI
XR (2012-2014) Deployment of a simultaneous broadband gradiometers to quantify the effects of aperture and near-surface geology on gradient-der East Carolina University (ECU) US: United States of America United States of America DOI
XR (2015-2015) Bowdoin glacier, NE Greenland ETHZ (Swiss Federal Institute of Technology, Zurich Switzerland) CH: Switzerland Switzerland
XR (2016-2017) Seismicity near the Nemaha fault in northern Oklahoma Cornell University US: United States of America United States of America DOI
XR (2018-2020) Tripartite-BIMA (Bangladesh-India-Myanmar Array) University of Missouri (MU) (Mizzou) US: United States of America United States of America DOI
XS (1996-1997) Mount Erebus Observatory IRIS/PASSCAL DOI
XS (1998-1998) Broad Band Monitoring of Explosions at Sangay Volcano, Ecuador IRIS/PASSCAL DOI
XS (1999-2001) Montana BB Array IRIS/PASSCAL
XS (2002-2002) Embayment Seismic Excitation Experiment University of Memphis, CERI US: United States of America United States of America DOI
XS (2003-2003) Source Phenomenology Experiments in Arizona IRIS/PASSCAL DOI
XS (2004-2004) Tungurahua 2004 IRIS/PASSCAL
XS (2005-2005) San Jose Microtremor 2005 IRIS/PASSCAL
XS (2006-2009) Multi-disciplinary Experiments for Dynamic Understanding of Subduction under the Aegean Sea Massachusetts Institute of Technology (MIT, USA) US: United States of America United States of America DOI
XS (2010-2011) Maule Earthquake (Chile) Aftershock Experiment Reseau sismologique et géodésique français (RESIF) FR: France France DOI
XS (2012-2013) Geysers Broadband Network ARRAY Information Technology (MD) US: United States of America United States of America
XS (2015-2015) Trinity River Lowden Ranch Array 2015 University of New Mexico (UNM) US: United States of America United States of America
XS (2016-2017) Passive Imaging of the Lithosphere-Asthenosphere Boundary University of Southampton (UK) GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
XS (2018-2020) Geophysical characterization of karst aquifers using dynamic recharge events New Mexico Tech US: United States of America United States of America DOI
XT (1994-1996) Seismic Probing of the Ontong-Java Plateau IRIS/PASSCAL DOI
XT (1997-1998) Colorado BB Array - Lodore IRIS/PASSCAL
XT (1999-2000) SIGAR (Kenya) IRIS/PASSCAL
XT (2001-2002) Tonga-Fiji Dual Array Experiment IRIS/PASSCAL DOI
XT (2003-2005) Crust-Mantle Interactions during Continental Growth and High-Pressure Rock Exhumation at an Oblique Arc-Continent Collision Zone: SE Caribbean Margin IRIS/PASSCAL DOI
XT (2006-2008) Oregon Array for Teleseismic Study II UC Berkeley US: United States of America United States of America
XT (2009-2009) Fuego Volcano 2009 Michigan Technological University (MTU) US: United States of America United States of America DOI
XT (2010-2010) Retrieval of reflections from seismic background-noise measurements for geophysical imaging of Fault Systems in Reno, NV University of Nevada (UNR Reno) US: United States of America United States of America DOI
XT (2011-2013) Western Idaho Shear Zone - Passive University of Florida US: United States of America United States of America DOI
XT (2014-2017) EASI - Eastern Alpine Seismic Investigation Swiss Seismological Service CH: Switzerland Switzerland DOI
XT (2018-2020) Cifalps (China-Italy-France Alps seismic transect) - 2 ISTerre (ISTERRE) FR: France France
XU (1993-1993) VSP at Hole 504 Woods Hole Oceanographic Institution (WHOI) US: United States of America United States of America DOI
XU (1996-1997) Broadband Crust/Upper Mantle Studies Around New Zealand IRIS/PASSCAL DOI
XU (1999-2000) Trans-Antarctic Institute of Geological and Nuclear Science (GNS - New Zealand) NZ: New Zealand New Zealand
XU (2001-2001) Monitoring MEQ activity during pulsed injection at geothermal reservoirs Lawrence Berkeley Laboratory (LBNL, CA USA) US: United States of America United States of America
XU (2002-2002) TaskForce Alsdorf 2002 GEOFON Program (GFZ-Potsdam, Germany) DE: Germany Germany
XU (2003-2003) 2003 Fort Payne, AL, Aftershock Network University of Memphis, CERI US: United States of America United States of America
XU (2005-2005) Deception Island Passive/Active Source University of Washington US: United States of America United States of America
XU (2006-2012) Collaborative Research: Earthscope integrated investigations of Cascadia subduction zone tremor, structure and process University of Washington US: United States of America United States of America DOI
XU (2013-2013) Jakarta Experiment Australian National University (ANU, Australia) AU: Australia Australia
XU (2014-2014) Greeley Colorado RAMP Deployment 2014 University of Colorado Boulder (CU) US: United States of America United States of America DOI
XU (2016-2019) USGS NEHRP Proposal 2016-0180 - Greeley University of Colorado US: United States of America United States of America DOI
XV (1997-1998) Seismic Monitoring of Gatun Dam, Panama Canal IRIS/PASSCAL DOI
XV (1999-2000) Seismic Profile Across Kilauea Volcano's East Rift Zone IRIS/PASSCAL DOI
XV (2001-2001) Tacoma Array USGS Menlo Park US: United States of America United States of America
XV (2003-2006) Collaborative research of the Earth's largest icebergs IRIS/PASSCAL DOI
XV (2007-2008) Glacier Seismicity and High Resolution Motion Records: Relation to Glacier Erosion University of Alaska, Fairbanks (UAF, AK USA) US: United States of America United States of America DOI
XV (2009-2010) Collaborative Research: Geometry and kinematics of basement-involved foreland arches:Insights into continental processes from Earthscope. Colorado College US: United States of America United States of America DOI
XV (2011-2013) INVESTIGATION OF SOURCES OF INTRAPLATE VOLCANISM USING PASSCAL BROADBAND INSTRUMENTS IN MADAGASCAR, THE COMORES, AND MOZAMBIQUE Washington University in St. Louis (WUSTL) US: United States of America United States of America DOI
XV (2014-2019) Fault Locations and Alaska Tectonics from Seismicity University of Alaska, Fairbanks (UAF, AK USA) US: United States of America United States of America DOI
XW (1997-2001) Multidisciplinary Investigation of the Mountain Building in the Tien Shan IRIS/PASSCAL DOI
XW (2003-2006) Siple Coast Antarctica, Microearthquake Project IRIS/PASSCAL
XW (2007-2008) Seismic Imaging of the Mantle Beneath the Anatolian-Aegan Domain Reseau sismologique et géodésique français (RESIF) FR: France France DOI
XW (2009-2011) Young Conjugate Margins Lab in the Gulf of Aden University of Southampton (UK) GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland DOI
XW (2012-2012) CRESIS Greenland 2012 Penn State University US: United States of America United States of America DOI
XW (2013-2014) ESG Bayou Corne ESG Solutions (Canada) CA: Canada Canada
XW (2016-2016) Pisagua/Iquique Crustal Tomography to Understand the Region of the Earthquake Source - OBSIP OBS Component IRIS OBSIP (OBSIP) US: United States of America United States of America DOI
XW (2017-2018) Broadband seismic experiment in NE Uganda to investigate plume-lithosphere interactions Penn State University US: United States of America United States of America DOI
XW (2019-2022) ALBION2 CNRS (Centre National Recherche Scientifique) FR: France France
XY (1997-1998) Northern Baja Transect IRIS/PASSCAL DOI
XY (1999-2001) Imaging the Seismogenic Zone with Geodesy and Seismology IRIS/PASSCAL DOI
XY (2003-2003) Mongolia-Baikal Lithospheric Transect Sismos a l'Ecole, Geosciences Azur FR: France France
XY (2004-2004) Seismic Imaging of Fractures at Krafla, Iceland IRIS/PASSCAL DOI
XY (2005-2006) Magma Accretion and the Formation of Batholiths IRIS/PASSCAL DOI
XY (2007-2009) Seismic Imagining of the Mantle Beneath the Anatolian-Aegan Domain Observatoire de Grenoble, Grenoble FR: France France DOI
XY (2010-2010) RAMP response for 2010 earthquake University of Florida US: United States of America United States of America DOI
XY (2011-2012) Experiment to Determine Hypocenters and Focal Mechanisms of Earthquakes Occurring in Association with Imaged Faults Near Summeville, South Carolina Virginia Polytechnic Institute and State University (VPI&SU or Virginia Tech) US: United States of America United States of America DOI
XY (2013-2016) PASEIS Penn State University US: United States of America United States of America
XY (2017-2017) The Central Iberian Mountain Range a Key Asset to the Deformation Mechanisms of Iberia Institut de Ciencies de la Terra "Jaume Almera" (ICTJA-CSIC) ES: Spain Spain DOI
XY (2018-2025) Stations deployed for Risk Model Switzerland ETHZ (Swiss Federal Institute of Technology, Zurich Switzerland) CH: Switzerland Switzerland
XZ (1993-1994) Cascadia/SEED reformat Arizona State University US: United States of America United States of America
XZ (1999-2000) Mount Erebus Seismic Studies IRIS/PASSCAL DOI
XZ (2001-2001) Spokane WA Earthquake Swarm IRIS/PASSCAL DOI
XZ (2003-2004) DHOFAR Seismic Experiment Institut des Sciences de la Terre FR: France France DOI
XZ (2005-2012) Collaborative Research: St. Elias Erosion/Tectonics Project University of Alaska, Fairbanks (UAF, AK USA) US: United States of America United States of America DOI
XZ (2013-2013) Gulf of Mexico USGS Hydrates USGS Woods Hole US: United States of America United States of America
XZ (2014-2014) Idaho Teton Dam Southern Methodist University (SMU TX) US: United States of America United States of America DOI
XZ (2015-2015) Measuring ambient noise of ocean breakers East Carolina University (ECU) US: United States of America United States of America DOI
XZ (2016-2017) Volatile recycling at the Lesser Antilles Arc: Processes and consequences Imperial College London (Imperial UK) GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland
XZ (2018-2018) Experiment in Fuego Liverpool University GB: United Kingdom of Great Britain and Northern Ireland United Kingdom of Great Britain and Northern Ireland DOI

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