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.

Request a new network code (requires login)
Generate citations for network data

Network Code Network Name Operated By Deployment DOI
X4 (2007-2009) Deep Structure of the Northeastern Tibet Collision Zone: INDEPTH IV
  • Missouri University of Science & Technology (Missouri S&T), United States of America
DOI
Y7 (2011-2012) Deep OCean Test ARray experiment
  • Universitat Potsdam, Germany
3J (2011-2012) Deep OCean Test ARray DOCTAR (OBS part)
2R (2015-2020) Deep Geothermal northern HADES seismic array DOI
Z8 (2009-2011) Deep Geothermal HADES seismic array
DOI
YB (2018-2021) Deep Fault Structure Beneath the Mojave from a High Density, Passive Seismic Profile
  • University of Texas at Austin, United States of America
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
5L (2022-2022) Deep Crustal Magmatic Structure in the Vicinity of the Pāhala Earthquake Swarm DOI
XU (2005-2005) Deception Island Passive/Active Source
  • University of Washington, United States of America
1P (2022-2027) DB MISS DOI
ZL (2003-2004) David Glacier 2003-2004
  • Institute of Geological and Nuclear Science (GNS), New Zealand
6H (2019-2019) Data Acquisition for 2020 Blind Trial of Surface-based Site Characterization Methods
DOI
YL (2024-2025) DAS testing Black Forest
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
YS (2024-2025) DAS monitoring of geohazards and environmental hazards project
  • Penn State University
DOI
9G (2021-2022) DAS La Palma 2021 eruption DOI
X4 (2023-2023) DAS experiment at Nanjing University Campus (Nanjing, China)
  • Nanjing University (NJU), China
DOI
6H (2015-2017) Darsser Schwelle
8S (2023-2048) Dark Fiber Horta, Faial, Açores DOI
4A (2010-2011) Darfield RAMP Aftershock Deployment, NZ
  • University of Wisconsin, Madison, United States of America
DOI
Y7 (2020-2021) DARE: Dense ARray for seismic site effect Estimation DOI
Y4 (2017-2019) DanSeis infrastructure installation project Southern Scandinavia
  • GEUS Geological Survey of Denmark and Greenland, Denmark
7L (2020-2025) DAMAST (Dams and Seismicity)
X9 (2008-2011) Dallas Earthquake Swarm
  • Southern Methodist University (SMU), United States of America
DOI
YI (2011-2014) DAFNE
ZZ (2002-2005) CYCLADES
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
DOI
3X (2022-2022) Curnamona Cube MT & Passive Seismic Array DOI
1F (2009-2009) Curnamona
DOI
XR (2004-2007) CSEDI: Observational and Theoretical Constraints on the Structure and Rotation of the Inner Core
DOI
5H (2013-2016) Crust of the Oman Ophiolite and its Lithosphere
  • Christian Albrechts - Universitat zu Kiel, Germany
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
DOI
Y1 (2018-2021) Crust and mantle structure and the expression of extension in the Turkana Depression of Kenya and Ethiopia
  • Tulane University (TU), United States of America
DOI
2F (2017-2020) Crust and lithosphere Investigation of the Easternmost expression of the Laramide Orogeny - Pilot Experiment
  • UC Riverside, United States of America
DOI
YA (1998-2000) Crustal Structure of Coso Geothermal Field, California
DOI
3H (2014-2015) Crustal Seismicity along for the Southern Andes Volcanic Zone
  • GEOMAR, Germany
DOI
1E (2015-2016) Crustal Magma Plumbing of the Santorini Volcanic System - OBS Component
  • University of Oregon, United States of America
DOI
3E (2015-2015) Crustal Magma Plumbing of the Santorini Volcanic System - Land Component
  • University of Oregon, United States of America
DOI
9H (2022-2026) CRONOS - Croatia/Norway Contribution to AdriaArray Temporary Network
ZD (1996-1997) Crete-TE
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
ZS (2009-2009) CReSIS Greenland Lake Drainage 2009
  • Penn State University, United States of America
DOI
XW (2012-2012) CRESIS Greenland 2012
  • Penn State University, United States of America
DOI
YZ (2008-2008) Crater Lake 2008
DOI
4W (2022-2023) Coupling erosion, weathering, and hydrologic function in an active orogenic system
  • University of Southern California
DOI
X8 (2011-2011) Coulman High VSP, Antarctica, 2010
  • UC Santa Barbara, United States of America
DOI
XA (1983-1983) Costa Rica Seismic Experiment
  • Woods Hole Oceanographic Institution (WHOI), United States of America
ZX (2005-2007) Costa Rica Poco Sol
  • Rutgers University, United States of America
XB (2008-2008) Costa Rica Active Source OBS Experiment
  • Woods Hole Oceanographic Institution (WHOI), United States of America
7J (2011-2011) Correlating seismic and visual (TLS) signals at Breidamerkurjokull, Iceland
  • University of South Florida (USF), United States of America
DOI
Y3 (2011-2011) Cornell-USGS Virgina Aftershock iMaging exPeriment
  • Cornell University, United States of America
DOI
YU (2019-2026) Cornell University Earth Source Heat seismic network
  • Cornell University, United States of America
DOI
ZZ (2024-2024) Cornell Spring 2024 Seismology Class Project
  • Cornell University
DOI

Network Data API

The network data shown here is also available programmatically through a web service API.