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
1F (2009-2009) Curnamona
3X (2022-2022) Curnamona Cube MT & Passive Seismic Array DOI
ZZ (2002-2005) CYCLADES
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
CQ Cyprus Broadband Seismological Network
C9 Czech Microbarograph Network
  • Institute of Atmospheric Physics of the Czech Academy of Sciences
Czechia DOI
CZ Czech Regional Seismic Network
YI (2011-2014) DAFNE
DA Dagestan Regional Seismic Network of the Russian Federation
  • Geophysical Survey of the Russian Academy of Sciences (GSRAS), Russian Federation
X9 (2008-2011) Dallas Earthquake Swarm
  • Southern Methodist University (SMU), United States of America
7L (2020-2025) DAMAST (Dams and Seismicity)
DG Dam Gallery
  • Kurichhu Hydropower Plant (KHP), Bhutan
Bhutan DOI
TY Dam Safety Monitoring Network DOI
DK Danish Seismological Network
  • GEUS Geological Survey of Denmark and Greenland, Denmark
Y4 (2017-2019) DanSeis infrastructure installation project Southern Scandinavia
  • GEUS Geological Survey of Denmark and Greenland, Denmark
Y7 (2020-2021) DARE: Dense ARray for seismic site effect Estimation DOI
4A (2010-2011) Darfield RAMP Aftershock Deployment, NZ
  • University of Wisconsin, Madison, United States of America
6H (2015-2017) Darsser Schwelle
X4 (2023-2023) DAS experiment at Nanjing University Campus (Nanjing, China)
  • Nanjing University (NJU), China
9G (2021-2022) DAS La Palma 2021 eruption DOI
YS (2024-2025) DAS monitoring of geohazards and environmental hazards project
  • Penn State University
YL (2024-2025) DAS testing Black Forest
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
6H (2019-2019) Data Acquisition for 2020 Blind Trial of Surface-based Site Characterization Methods
ZL (2003-2004) David Glacier 2003-2004
  • Institute of Geological and Nuclear Science (GNS), New Zealand
1P (2022-2027) DB MISS DOI
KD Decentralized onsite earthquake early warning network Bishkek (Kyrgyzstan)
XU (2005-2005) Deception Island Passive/Active Source
  • University of Washington, United States of America
5L (2022-2022) Deep Crustal Magmatic Structure in the Vicinity of the Pāhala Earthquake Swarm DOI
XO (2010-2010) Deep Fault Drilling Project, Alpine Fault, New Zealand: Whataroa-Wanganui Passive Seismology Experiment 2010
  • Victoria University of Wellington, New Zealand
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
Z8 (2009-2011) Deep Geothermal HADES seismic array
2R (2015-2020) Deep Geothermal northern HADES seismic array DOI
Y7 (2011-2012) Deep OCean Test ARray experiment
  • Universitat Potsdam, Germany
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
XN (2007-2007) Deep Structure of the Nortwaster Tibet Collison Zone
  • Stanford University, United States of America
X8 (2012-2017) Deep Structure of Three Continental Sutures in Eastern North America
  • Rutgers University, United States of America
1P (2014-2016) DEEP-TEE Phase 1
9Q (2017-2030) DEEP-TEE Phase 2 DOI
XZ (2020-2024) DeepTrigger Chile deployment
6B (2021-2024) DeepTrigger Peru DOI
YH (2021-2023) Defining the Source of the 1886 Earthquake
  • College of Charleston
9A (2012-2012) Deformation and magmatic modification of a steep continental margin, western Idaho - eastern Oregon
  • Virginia Polytechnic Institute and State University (Virginia Tech), United States of America
XT (2011-2013) Deformation and Magmatic Modification of a Steep Continental Margin, Western ID-Eastern OR
  • University of Florida, United States of America
Y3 (2017-2018) Delaware 2017 Aftershock Study
XK (2016-2016) Delineating preferential flow paths from recharge for water planning and management
  • New Mexico Tech, United States of America
YM (2002-2003) Denali Fault Aftershocks RAMP
8T (2023-2027) Denman Glacier System
  • University of Tasmania, Australia
YH (2012-2013) Dense Array for North Anatolia
6E (2019-2019) Dense nodal deployment at some test sites for the upcoming FaultScan project
  • Scripps Institution of Oceanography (SIO), United States of America
DO Dense Oceanfloor Network System for Earthquakes & Tsunamis
  • Japan Marine Science and Technology Center (JAMSTEC), Japan
2R (2022-2023) Dense seismic node Arrays on Montagne Pelée, Martinique DOI

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