International Federation of Digital Seismograph Networks

Network Codes

The following network codes are assigned by the FDSN to facilitate unique identifiers for seismological data streams.

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Network Code Network Name Operated By Deployment DOI
XL (1997-1997) An asthenosphere-lithosphere probe in North America
DOI
XL (1998-1998) Santa Clara Valley Fill structure
DOI
XL (1999-2001) San Francisco/Oakland Dense Array 2000
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), United States of America
DOI
XL (2012-2016) Central Mongolia Seismic Experiment
  • Lehigh University, United States of America
DOI
XL (2017-2030) McGill Dawson-Septimus Induced Seismicity Study
  • McGill University, Canada
XM (1994-1994) New Zealand Study
DOI
XM (1995-1996) Wabash Valley Array Study
DOI
XM (1997-1997) TOMOG 3D
XM (1998-1998) Ocean Seismic Network Exp.
DOI
XM (1999-2001) Colorado Plateau/Rio Grand Rift/Great Plains Seismic Transect
DOI
XM (2002-2003) Ethiopia-Afar Geoscientific Lithospheric Experiment 6TD Passive Array
  • University of Leicester (SEIS UK), United Kingdom
XM (2004-2004) Vestmanna04 (SeiFaBa Project)
  • University of Cambridge Earth Sciences, United Kingdom
XM (2005-2006) ALPASS
XM (2007-2010) Western Tibet passive array deployment
XM (2011-2011) Broadband recording at the site of great earthquake rupture in the Alaska Megathrust
  • University of Oklahoma (OU), United States of America
DOI
XM (2012-2014) ARGOS - Alutu and Regional Geophysical Observation Study
  • University of Bristol, United Kingdom
DOI
XM (2016-2016) Poroelastic Tomography at Brady Geothermal Field
  • University of Wisconsin, Madison, United States of America
DOI
XM (2017-2018) Geothermal Seismic Exploration and Monitoring Via Ambient Seismic Noise Interferometry
DOI
XM (2019-2021) REMPARTS
XM (2022-2024) TANGO-BB
  • University of Arizona, United States of America
DOI
XN (1994-1995) TOR-0
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
Germany
XN (1996-1996) Irian Jaya RAMP
DOI
XN (1998-1999) Los Angeles Region Seismic Experiment -- Passive Phase
DOI
XN (2000-2002) Parkfield Passive Seismic Array
  • University of Wisconsin, Madison, United States of America
DOI
XN (2003-2005) Collaborative Research: Canadian Northwest Seismic Experiment
DOI
XN (2006-2006) TaskForce_Java
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
XN (2007-2007) Deep Structure of the Nortwaster Tibet Collison Zone
  • Stanford University, United States of America
DOI
XN (2008-2009) Bolivar: Western Venezuela
  • Rice University, United States of America
DOI
XN (2010-2010) Monitgoring seismicity associated with a possible asperity on the Cascadia megathrust
  • Oregon State University (OSU), United States of America
DOI
XN (2011-2013) joint summer field camp BSU/CSM/Imperial College of London
DOI
XN (2014-2014) Dynamic Response of the Ross Ice Shelf to to Wave Induced Vibrations
  • Scripps Institution of Oceanography (SIO), United States of America
DOI
XN (2015-2021) Gorkha Earthquake 2015
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
DOI
XN (2022-2023) TANGO-Node
  • University of Arizona, United States of America
DOI
XN (2024-2024) GUANCHE 2024 OBS network DOI
XO (1995-1995) CINCA95
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
XO (1996-1996) ANCORP96-AN
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
Germany
XO (1997-1999) The Origins of Mantle Anisotropy beneath Eastern North America
  • Brown University, United States of America
DOI
XO (2000-2001) Santa Clara Valley 2000
  • USGS Menlo Park, United States of America
DOI
XO (2003-2004) US-Japan Collaborative Research: Multi-scale seismic imaging of the Mariana Subduction Factory
DOI
XO (2005-2005) Eastern Black Sea Seismic Experiment
  • University of Southampton, United Kingdom
XO (2006-2006) NOISY
  • Stanford University, United States of America
United States of America
XO (2007-2009) INDEPTH IV
  • University of Cambridge Earth Sciences, United Kingdom
DOI
XO (2010-2010) Deep Fault Drilling Project, Alpine Fault, New Zealand: Whataroa-Wanganui Passive Seismology Experiment 2010
  • Victoria University of Wellington, New Zealand
DOI
XO (2011-2015) Ozark Illinois Indiana Kentucky (OIINK) Flexible Array Experiment
  • Indiana University Bloomington (IU Bloomington), United States of America
DOI
XO (2016-2017) Seismic Network for Site Effect Studies in Amatrice Area (Central Italy)
DOI
XO (2018-2019) AACSE: Alaska Amphibious Community seismic Experiment
  • Cornell University, United States of America
DOI
XO (2020-2020) Determination of the deep shear wave velocity structure of northwestern Washoe Valley
DOI
XO (2021-2022) Vuache
  • Universite de Savoie (LGIT-ISTERRE), France
DOI

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