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
7A (1992-1992) BTL Australia
B1 Buryat Regional Seismic Network of the Russian Federation
  • Buryat Branch of the Geophysical Survey of the Russian Academy of Sciences
X1 (2011-2012) Byrd Lake Reflection Seismics - Cresis
  • Penn State University, United States of America
RC BYU-Idaho Network
  • Brigham Young Univ-Idaho (BYU Idaho), United States of America
XH (1992-1993) Cajon Pass Borehole Recording Phase I
  • University of Southern California (USC), United States of America
YD (2003-2006) Calabria-Appennine-Tyrrhenian/Subduction-Collision-Accretion Network
EN CalEnergy Subnetwork
  • USGS Caltech, Pasadena, United States of America
YH (2020-2020) Calibration of a distributed acoustic sensing platform for measuring snow depths
  • Harvard University, United States of America
WR California Division of Water Resources
  • California Division of Water Resources, United States of America
CE California Strong Motion Instrumentation Program
CT California Transect Network
  • UC Santa Cruz, United States of America
VK California Volcano Observatory DOI
ZE (1999-1999) Calixto
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
8O (2019-2025) CaMI Field Research Station Geophone Network (CaMI.FRS)
QW Canadian National Earthquake Early Warning System Canada DOI
QX Canadian National Earthquake Early Warning System - Extended Partners DOI
C2 Canadian National Geomagnetic Network
CN Canadian National Seismograph Network
Y5 (2006-2018) Canadian Rockies and Alberta Network
  • University of Alberta, Canada
C8 Canadian Seismic Research Network
  • Geological Survey of Canada, Canada
T4 Canakkale Onsekiz Mart University Earthquake Research Center
  • Canakkale Onsekiz Mart University (COMU), Türkiye
1C (2022-2025) CANALAB Project - Temporary Seismic Deployment DOI
ZI (2020-2020) Canary Islands seismic monitoring with Distributed Acoustic Sensing
YZ (2023-2023) Canary Islands seismic monitoring with Distributed Acoustic Sensing (CANDAS) DOI
4L (2017-2019) Canoe Reach Geothermal Field
  • University of Calgary, Canada
6K (2023-2027) Cape Modern seismic monitoring network DOI
9B (2014-2015) Cape Verde, Fogo Temporary Seismic Network
  • Instituto Português do Mar e da Atmosfera, I.P. (IPMA), Portugal
YW (2002-2004) Cape Verde Mantle Structure
  • University of Bristol, United Kingdom
7J (2005-2008) CAPRA - Linkage
8K (2014-2015) Capricorn Orogen High Precision Survey DOI
7M (2014-2018) Capricorn Orogen Passive-source Array
  • Macquarie University, Australia
7A (2021-2023) Carajás Mineral Province Seismic Network DOI
YF (2010-2011) Carboneras Fault Experiment
  • University of Liverpool, United Kingdom
X1 (2009-2010) Carbon Sequestration Technical Assessemnt-Pennsylvania
  • Penn State University, United States of America
ZF (2024-2024) Carbon sequestration VSP and instrument comparison
  • Lawrence Berkeley National Lab
Y6 (2023-2026) CAREER: A comprehensive seismic investigation to the crust and uppermost mantle beneath the South Pole, East Antarctica
  • Stony Brook University
CK CAREMON Central Asian Cross-border network
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
ZG (1997-1997) Cariaco
  • GEOFON Program (GFZ-Potsdam, Germany), Germany
UA Caribbean Andesite Lava Island Precision Seismo-geodetic Observatory
  • University of Arkansas - Fayetteville, United States of America
YU (2016-2018) Caribbean-Merida Andes Experiment
  • Rice University, United States of America
NA Caribbean Netherlands Seismic Network
CU Caribbean Network
DT Carnegie Analog Broadband Seismograph Network
4P (2020-2021) Carnegie Washington Backyard Network DOI
YG (2005-2007) Carpathian Basins Project Regional Array
6D (2020-2021) Caruaru PE
  • Universidade Federal do Rio Grande do Norte (UFRN), Brazil
CC Cascade Chain Volcano Monitoring
XH (2005-2006) Cascade Tiltmeter Array
  • Central Washington University, United States of America
XG (2009-2011) Cascadia Array of Arrays
  • University of Washington, United States of America
5E (2014-2015) Cascadia Initiative
  • Oregon State University (OSU), United States of America

Network Data API

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