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
NJ Nigerian National Network of Seismographi Stations (NNNSS)
  • Centre for Geodesy and Geodynamics (CGG), Nigeria
DOI
YP (2004-2007) NISD
  • Multimax Inc, United States of America
United States of America
6E (2007-2011) Nisyros network
8J (2019-2019) Nodal Deployment for Alaska Amphibious Community Seismic Experiment
  • University of New Mexico (UNM), United States of America
DOI
7S (2022-2023) Nodal Deployment for the Elgin-Lugoff South Carolina earthquake swarm
  • Georgia Institute of Technology-Georgia Tech (EAS), United States of America
DOI
4E (2020-2021) Nodal seismic experiment at the Berkeley section of the Hayward fault DOI
Z7 (2024-2024) Nodal Seismometer Deployment at Oak Ridge earthflow near San Jose, CA
  • UC Santa Cruz, United States of America
DOI
2A (2023-2023) Nodal Seismometer Deployment at Oak Ridge earthflow near San Jose, CA
  • UC Santa Cruz, United States of America
DOI
ZE (2019-2019) Node deployment along the intersection of the Denali Fault and Parks Highway
DOI
9M (2016-2016) Node deployment along the intersection of the Denali Fault and Richardson Highway DOI
3A (2017-2017) Node deployment in Oaxaca, Mexico following the M8.1 Tehuantepec Earthquake
  • University of Texas at El Paso (UTEP), United States of America
DOI
ZK (2017-2018) Node Soufriere
DOI
ZS (2021-2021) NODESPEGAIROLLES DOI
3K (2021-2021) Noise Field Characterisation at UCD Campus
XO (2006-2006) NOISY
  • Stanford University, United States of America
United States of America
Z2 (2009-2012) NOISY
  • Stanford University, United States of America
ZA (2011-2013) NoMelt
  • Woods Hole Oceanographic Institution (WHOI), United States of America
XA (1993-1993) Non Proliferation Experiment (Chemical Kiloton at NTS)
DOI
3H (2009-2009) Norcia basin (Italy) temporary network
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
DOI
NO NORSAR Station Network
DOI
Y5 (2019-2020) North Bay Seismic Experiment (con't from YK 2003-2018)
  • USGS Menlo Park, United States of America
United States of America DOI
YW (2000-2001) North China Experiment 2000-2001
YV (2000-2003) North East Atlantic Tomography
  • University of Leicester (SEIS UK), United Kingdom
NB Northeastern Brazil UFRN
  • Universidade Federal do Rio Grande do Norte (UFRN), Brazil
NI North-East Italy Broadband Network
  • Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, University of Trieste (OGS & UniTS), Italy
DOI
OX North-East Italy Seismic Network
DOI
ZV (2008-2010) Northeast Tibet Plateau Seismic Experiment
  • University of Rhode Island (URI), United States of America
DOI
Z1 (2006-2007) Northeast Tibet Plateu Seismic Experiment: Pilot
  • University of Rhode Island (URI), United States of America
DOI
AR Northern Arizona Network
XY (1997-1998) Northern Baja Transect
DOI
YC (2018-2020) Northern Borneo Orogeny Seismic Survey
DOI
YU (2006-2014) Northern California Delta
  • USGS Menlo Park, United States of America
DOI
ZL (2011-2015) Northern Embayment Lithospheric Experiment
  • University of Memphis, CERI, United States of America
DOI
FN Northern Finland Seismological Network
YF (2004-2004) Northern IL. aftershock survey
  • University of Memphis, CERI, United States of America
1Q (2019-2021) Northern Lake Abaya Broadband Network
  • Imperial College London, United Kingdom
DOI
YR (2004-2004) Northern Lake Tahoe Magma Injection Seismic Monitoring Network
6B (2006-2009) Northern North China Seismic Array
DOI
Z7 (2010-2015) Northern Volcanic Zone
DOI
8K (2016-2022) Northern Volcanic Zone Iceland
  • University of Cambridge Earth Sciences, United Kingdom
DOI
NF North Fork Valley Seismic Network
  • National Institute for Occupational and Health (NIOSH), United States of America
United States of America
UI North Idaho Seismic Network
  • University of Idaho, United States of America
XL (1995-1996) North Korea Nuclear Site Investigation
DOI
N0 North Osetia Regional Seismic Network of the Russian Federation
  • North Osetia Branch of the Geophysical Survey of the Russian Academy of Sciences, Russian Federation
DOI
XA (1994-1994) Northridge Aftershock Studies
DOI
ZU (2008-2008) North Tanzania
  • University of Rochester, United States of America
ZW (2013-2024) North Texas Earthquake Study: Azle and Irving/Dallas
  • Southern Methodist University (SMU), United States of America
DOI
4F (2015-2025) North Texas Earthquake Study: Venus (Johnson County), TX
  • Southern Methodist University (SMU), United States of America
DOI
NW Northwestern University Seismic Network
  • Northwestern University, United States of America
YQ (2004-2005) Northwest Nevada Seismic Experiment, Deep crustal structure of the northernmost Basin and Range and its relation to extensional faulting
DOI

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