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
Z1 (2018-2018) Hawaii Nodal RAPID 2018
DOI
HV Hawaiian Volcano Observatory Network
DOI
XH (2007-2007) Hawaiian South Flank Slow EQ Project
  • University of Wisconsin, Madison, United States of America
DOI
H2 Hawaii 2 Observatory
HZ Hasting Micro-Seismic Consulting DOI
3D (2014-2016) HART Pisagua Earthquake
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
DOI
9A (2021-2022) HART-La Palma volcanic eruption DOI
ZB (2010-2015) HARP
  • Scripps Institution of Oceanography (SIO), United States of America
2V (2023-2025) Harnessing the Geothermal Potential of Oklahoma Sedimentary Basin
  • University of Oklahoma (OU), United States of America
DOI
HW Hanford Washington Seismic Network
9B (2021-2025) Hampton Roads Seismic Monitoring Network
  • Virginia Polytechnic Institute and State University (Virginia Tech), United States of America
DOI
Z2 (2006-2007) HAMNET
  • Federal Institute for Geosciences and Natural Resources (BGR), Germany
9L (2020-2020) Hall Ranch Nodal Seismic Array DOI
8J (2023-2025) Halden local seismic network DOI
Z2 (2021-2022) Haiti Response 2021 DOI
YB (2010-2010) Haiti Earthquake Aftershock Experiment
DOI
AY Haitian Seismic Network
  • Bureau of Mines and Energy, Haiti
X2 (2012-2012) Haida Gwaii OBS Experiment Canada
9U (2019-2021) GWatt temporary seismic network at UDDGP DOI
XV (2021-2023) Guyana Aftershock Study Network
  • Institute of Astronomy, Geophysics & Atmospheric Science, Univ. of Sao Paulo (IAG-USP), Brazil
ZF (2010-2010) GUMBO: Gulf of Mexico Basin Opening
  • Baylor University, United States of America
DOI
XZ (2013-2013) Gulf of Mexico USGS Hydrates
  • USGS Woods Hole, United States of America
XJ (2011-2011) Gulf of Mexico Hydrates Research Consortium
  • Woods Hole Oceanographic Institution (WHOI), United States of America
ZT (2005-2007) Gulf of Guinea Islands
  • University of Texas at Austin, United States of America
United States of America
XA (1979-1979) Gulf of California Oblique Seismic Experiment
  • Woods Hole Oceanographic Institution (WHOI), United States of America
DOI
1B (2010-2011) Gulf of Alaska Active Source Experiment
  • Woods Hole Oceanographic Institution (WHOI), United States of America
Y9 (2009-2014) Guerrero Gap Experiment (Mexico)
  • Observatoire de Grenoble, Grenoble, France
DOI
X4 (2022-2022) Guerrero Gap Active Source Experiment
  • Woods Hole Oceanographic Institution (WHOI), United States of America
ZK (2012-2013) Guerrero Coast Experiment
  • Monitron, Mexico
Mexico
XN (2024-2024) GUANCHE 2024 OBS network DOI
ZQ (2017-2020) Guagua Pichincha
  • Escuela Politecnica Nacional-Instituto Geofisico, Chile
GL Guadeloupe Seismic and Volcano Observatory Network
DOI
1E (2018-2026) GSC-BCOGC Induced Seismicity Study
2N (2023-2024) Groundwater monitoring in Northern Utah (GNU) from one-year nodal deployment DOI
XQ (1995-1995) Green River Experiment
7T (2023-2025) Greenland SLIDE project: passive seismic network DOI
9F (2023-2023) GreenlandSeismic
  • Institut des Sciences de la Terre, France
GG Greenland Ice Sheet Monitoring Network
  • IRIS HQ, United States of America
DOI
7Q (2023-2023) Greenland Ice Drilling for Climate History; site selection
  • Penn State
DOI
3F (2023-2024) GREENest DOI
Y2 (2012-2012) Green County Observation
  • University of Pittsburgh (Pitt), United States of America
XU (2014-2015) Greeley Colorado RAMP Deployment 2014
  • University of Colorado Boulder (CU), United States of America
DOI
Z2 (2019-2020) Great Sand Dunes Colorado Earthquake study
  • University of Colorado, United States of America
DOI
ZC (2013-2032) Greater Antilles Seismic Program
  • Baylor University, United States of America
DOI
GB Great Britain Seismograph Network
DOI
Y4 (2023-2023) Graz Inner City Global DAS '23 Experiment DOI
2A (2001-2002) Gravity Lineations, Intraplate Melting, Petrologic and Seismic Expedition
  • Brown University, United States of America
ZU (2012-2012) Grand Canyon Controlled Flood
DOI
ZQ (2024-2024) Grace Lake passive seismic monitoring study
  • Fleming College
DOI
GP GPS Data Products for Solid Earth Science United States of America

Network Data API

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