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
YA (2008-2008)	HLP-3	Stanford University		—
3J (2013-2015)	HIRE-II	GEOFON Program (GFZ-Potsdam, Germany)		DOI
YQ (2001-2002)	Himalaya Tectonic	IRIS/PASSCAL	—	—
YL (2001-2002)	Himalayan Seismotectonics, Nepal and Tibet	IRIS/PASSCAL		DOI
XQ (2001-2002)	Hikurangi Subduction System (New Zealand) Seismic Transects, North Island Geophysical Transect Passive	IRIS/PASSCAL		DOI
8F (2014-2015)	Hikurangi Ocean Bottom Investigation of Tremor and Slow Slip, LBPR and TXBP data	University of Texas at Austin		DOI
YH (2014-2015)	Hikurangi Ocean Bottom Investigation of Tremor and Slow Slip	University of Texas at Austin		DOI
ZO (2014-2016)	HiK-NET temporary experiment (RESIF-SISMOB)	Reseau sismologique et géodésique français (RESIF)		DOI
9C (2010-2011)	High Resolution Seismological Profiling across Sierra Nevad	GEOFON Program (GFZ-Potsdam, Germany)		DOI
2N (2022-2022)	High Resolution Imaging of the Pedernales Earthquake Rupture Zone - Nodes Phase II	Lehigh University		DOI
XE (2020-2020)	High Resolution Imaging of the Pedernales Earthquake Rupture Zone - Nodes	Lehigh University		DOI
XF (2021-2022)	High Resolution Imaging of the Pedernales Earthquake Rupture Zone - Broadbands	Lehigh University		DOI
X2 (2020-2022)	High Resolution Imaging of the Pedernales Earthquake Rupture zone	Karlsruhe Institute of Technology (KIT GPI Germany)		DOI
YS (2022-2022)	High-resolution imaging of the crustal-scale structure of the Central Pyrenees and role of Variscan inheritance on its geodynamic evolution	Institut Cartogràfic i Geològic de Catalunya (ICGC) Instituto Geológico y Minero de España (IGME)		DOI
XJ (2010-2010)	High-resolution imaging of magma transport at the summit of Kilauea Volcano	USGS Hawaiian Volcano Observatory (HVO)		DOI
XP (1994-1995)	High resolution experiment along the Hikurangi subduction zone in New Zealand, Taupo Volcanic Zone	IRIS/PASSCAL		DOI
Z2 (2008-2008)	High-Lava-Plains-Active-Vcomp	Stanford University		DOI
Z5 (2008-2008)	High Lava Plains Active - Single Component Subset A	University of Oklahoma (OU)		DOI
HG	High-Gain Long-Period Network	Albuquerque Seismological Laboratory/USGS (ASL)		DOI
VD	High Agri Valley geophysical Observatory	CNR IMAA Consiglio Nazionale delle Ricerche (Italy) (CNR IMAA)		DOI
HS	Hessischer Erdbebendienst	Hessian Agency for Nature Conservation, Environment and Geology (HLNUG)	Germany	DOI
XE (2021-2021)	HERSK-TNA, Hekla Real-Time Seismic Network - Transnational Access Eurovolc project	Dublin Institute for Advanced Studies Icelandic Meteorological Office (IMO)	—	DOI
YT (2006-2006)	Herdubreid 2006	University of Cambridge (UK) Earth Sciences		—
ZJ (2005-2005)	Herdubreid 2005	Geological Survey of Estonia (GSE)		—
HA	Hellenic Seismological Network, University of Athens, Seismological Laboratory	University of Athens		DOI
XF (2018-2019)	Hazard in Tanzanian Rift	CNRS (Centre National Recherche Scientifique)		—
ZF (1999-2001)	Hawaii Plume	GEOFON Program (GFZ-Potsdam, Germany)		—
Z1 (2018-2018)	Hawaii Nodal RAPID 2018	University of Utah		DOI
HV	Hawaiian Volcano Observatory Network	USGS Hawaiian Volcano Observatory (HVO)		DOI
XH (2007-2007)	Hawaiian South Flank Slow EQ Project	University of Wisconsin, Madison		DOI
H2	Hawaii 2 Observatory	University of Hawaii (UH)		—
3D (2014-2016)	HART Pisagua Earthquake	GEOFON Program (GFZ-Potsdam, Germany)		DOI
9A (2021-2022)	HART-La Palma volcanic eruption	Deutsches GeoForschungsZentrum GFZ (GFZ Potsdam)	—	DOI
ZB (2010-2015)	HARP	Scripps Institution of Oceanography (SIO)		—
HW	Hanford Washington Seismic Network	Pacific Northwest National Laboratory (PNL)		—
9B (2021-2025)	Hampton Roads Seismic Monitoring Network	Virginia Polytechnic Institute and State University (VPI&SU or Virginia Tech)	—	DOI
Z2 (2006-2007)	HAMNET	BGR Federal Institute for Geosciences and Natural Resources (BGR, Germany)		—
9L (2020-2020)	Hall Ranch Nodal Seismic Array	U.S. Geological Survey	—	DOI
Z2 (2021-2022)	Haiti Response 2021	University of California, Riverside (UCR)	—	DOI
YB (2010-2010)	Haiti Earthquake Aftershock Experiment	Reseau sismologique et géodésique français (RESIF)		DOI
AY	Haitian Seismic Network	Bureau of Mines and Energy (Haiti)		—
X2 (2012-2012)	Haida Gwaii OBS Experiment	Natural Resources Canada (NRCAN Canada)	Canada	—
XV (2021-2023)	Guyana Aftershock Study Network	IAG-USP (Institute of Astronomy, Geophysics & Atmospheric Science -Univ. of Sao Paulo)	—	—
ZF (2010-2010)	GUMBO: Gulf of Mexico Basin Opening	Baylor University		DOI
XZ (2013-2013)	Gulf of Mexico USGS Hydrates	USGS Woods Hole		—
XJ (2011-2011)	Gulf of Mexico Hydrates Research Consortium	Woods Hole Oceanographic Institution (WHOI)		—
ZT (2005-2007)	Gulf of Guinea Islands	University of Texas at Austin	United States of America	—
XA (1979-1979)	Gulf of California Oblique Seismic Experiment	Woods Hole Oceanographic Institution (WHOI)		DOI
1B (2010-2011)	Gulf of Alaska Active Source Experiment	Woods Hole Oceanographic Institution (WHOI)		—
Y9 (2009-2014)	Guerrero Gap Experiment (Mexico)	Observatoire de Grenoble, Grenoble		DOI

Network Data API

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