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
ZY (1990-2025) Portable Southern California Seismic Networks
  • California Institute of Technology (Caltech)
ZZ (2002-2005) CYCLADES
  • GEOFON Program (GFZ-Potsdam, Germany)
ZZ (2007-2009) Lithospheric Structure of the Puna Plateau
  • Missouri University of Science & Technology(Former UM-Rolla)(Missouri S&T USA)
ZZ (2010-2010) Seismology Classroom at University of Chicago
  • University of Chicago
ZZ (2011-2011) Multi-array observations of tectonic tremor in the Anza gap, San Jacinto fault, CA - Phase 1
  • California Institute of Technology (Caltech)
ZZ (2012-2012) Collaborative Research: Imaging the Cascadia subduction zone - a ship-to-shore opportunity
  • Lamont Doherty Earth Observatory (LDEO), Columbia University
ZZ (2013-2014) Virginia seismic experiment
  • USGS National Center/Reston (United States Geological Survey)
ZZ (2015-2016) USGS Puerto Rico Trence
  • Woods Hole Oceanographic Institution (WHOI)
ZZ (2017-2018) Texas-Geothermal Seismic Exploration and Monitoring Via Ambient Seismic Noise Interferometry
  • Baylor University
ZZ (2019-2022) Farnsworth Unit Surface Seismic Array
  • New Mexico Tech

Network Data API

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