International Federation of Digital Seismograph Networks
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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
Z8 (2022-2026) Temporary network Croatian Seismological Survey — DOI
XK (2020-2020) Temporary network seismic in Central Calabria
—
Z6 (2020-2021) Temporary Nodal Deployment at Kilauea Caldera
  • USGS
DOI
Z2 (2016-2018) Temporary Receivers for Monitoring Bangladesh Earthquakes
DOI
6D (2019-2019) Temporary seismic deployments on Bowdoin glacier, Northwest Greenland
  • ETHZ (Swiss Federal Institute of Technology, Zurich Switzerland)
—
Z3 (2014-2014) Temp-Sismo12082014
  • Escuela Politecnica Nacional-Instituto Geofisico
DOI
6A (2017-2018) Teno Valley Seismic Network
DOI
8H (2019-2020) Terceira2019
DOI
ZL (2016-2016) Terrapin —
DOI
TS TERRAscope (Southern California Seismic Network)
  • California Institute of Technology (Caltech)
—
XX (2013-2599) Test and non-distributed data only —
DOI
ZT (2003-2004) Testing of a Deep-Water, Acoustically-Linked, Moored- Buoy Seafloor Observatory
  • IRIS HQ (DC)
—
2G (2010-2015) Testing of the effectiveness of incorporating seismic data in seismic hazard assessment within a traditional field course
  • Indiana University Bloomington (IU Bloomington)
DOI
3L (2010-2023) Testing of the effectiveness of incorporating seismic data in seismic hazard assessment within a traditional field course
  • University of Indiana
DOI
YE (2011-2023) Testing TA & FA vaults and directly buried sensor (3T)
  • IRIS PASSCAL Instrument Center @ New Mexico Tech
DOI
8F (2017-2017) Test study to detect moisture in a Playa lake bed
  • Texas Tech University
DOI
YZ (2022-2022) Tete Rousse — —
YC (2013-2017) Texas Brine Corporation Louisiana Seismic Network
—
ZZ (2017-2018) Texas-Geothermal Seismic Exploration and Monitoring Via Ambient Seismic Noise Interferometry
  • Baylor University
—
4T (2018-2024) Texas Seismological Network
DOI
TX Texas Seismological Network
DOI
2T (2018-2024) Texas Temporary Arrays
DOI
TM Thai Seismic Monitoring Network
—
XA (2017-2023) The Caucasus Seismic Network: The Uplift and Structure of the Greater and Lesser Caucasus
  • University of Missouri (MU) (Mizzou)
DOI
XY (2017-2017) The Central Iberian Mountain Range a Key Asset to the Deformation Mechanisms of Iberia
DOI
ZA (2006-2008) The Colima Deep Seismic Experiment: Imaging the Magmatic Root of Colima Volcano
  • University of Alaska, Fairbanks (UAF, AK USA)
DOI
XR (2001-2002) The Florida to Edmonton Broadband Experiment
DOI
XF (2020-2020) The GEYER seismic network — DOI
ZK (2021-2023) The Irpinia seismic Array — DOI
3P (2017-2021) Theistareykir monitoring network — DOI
YS (2009-2013) The life cycle of Andean volcanoes:Combining space-based and field studies
  • Cornell University
DOI
7C (2015-2019) The Mackenzie Mountains Transect: Active Deformation from Margin to Craton
  • Colorado State University (CSU)
DOI
6O (2016-2025) The Ohio State University School of Earth Sciences FanQuakes Project
DOI
XO (1997-1999) The Origins of Mantle Anisotropy beneath Eastern North America
  • Brown University
DOI
5J (2014-2016) The Sardinia Passive Array Experiment (SPAE)
DOI
XJ (1997-1997) The Sierran Paradox Experiment
DOI
WU The Southern Ontario Seismic Network
—
ZS (2017-2020) The SWATH
DOI
ZH (2020-2020) The Valencia-Islalink Distributed Acoustic Sensing Experiment
  • University of Michigan
 — DOI
ZD (2020-2020) ThunderSeis Seismo-Acoustic Network
  • University of Vienna (Universitat Wien, Austria)
DOI
TH Thüringer Seismologisches Netz
  • Institut fuer Geowissenschaften, Friedrich-Schiller-Universitaet Jena
DOI
1H (2021-2022) Thwaites Interdisciplinary Margin Evolution (TIME) Small Node Network
  • University of Texas at El Paso
DOI
2E (2018-2019) Thwaites Margins
  • University of Oklahoma (OU)
DOI
XC (1991-1992) Tibetan Plateau Passive-Source Experiment
DOI
XE (2008-2008) TICO-CAVA
  • Woods Hole Oceanographic Institution (WHOI)
 United States of America —
ZF (2005-2006) Tidal modulation of ice stream flow, Tides
DOI
ZH (2004-2004) Tidal modulation of ice stream flow, Tides B Grounding Line
DOI
ZG (2004-2004) Tidal modulation of ice stream flow, Tides B Upstream
DOI
YX (2003-2004) Tides — —
ZD (2005-2006) Tides E 2005
—

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