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
X1 (2009-2010) Carbon Sequestration Technical Assessemnt-Pennsylvania
XH (2005-2006) Cascade Tiltmeter Array
XG (2009-2011) Cascadia Array of Arrays
DOI
XZ (1993-1994) Cascadia/SEED reformat
XL (2012-2016) Central Mongolia Seismic Experiment
DOI
XA (2008-2009) Central Oregon Locked Zone Array, Monitoring seismicity associated with a possible asperity on the Cascadia megathrust
DOI
X2 (2023-2023) CGF-Svalbard DOI
XQ (2020-2025) CHAUVET
DOI
XK (1996-1996) Chicxulub Impact Crater, Yucatan
XQ (2019-2019) Chile Glacial Volcano Experiment
DOI
X6 (2024-2026) Chilkat Valley geohazard observatory
DOI
XT (2018-2020) Cifalps (China-Italy-France Alps seismic transect) - 2
DOI
XO (1995-1995) CINCA95
XN (2003-2005) Collaborative Research: Canadian Northwest Seismic Experiment
DOI
XH (2014-2017) Collaborative Research: Collaborative Research: Dynamic Response of the Ross Ice Shelf to Ocean Waves and Structure and Dynamics of the Ross Sea from a Passive Seismic Deployment on the Ross Ice Shelf
DOI
XL (2008-2011) Collaborative Research: Dynamic controls on tidewater glacier retreat
DOI
XU (2006-2012) Collaborative Research: Earthscope integrated investigations of Cascadia subduction zone tremor, structure and process
DOI
XD (2014-2016) Collaborative Research: Illuminating the architecture of the greater Mount St. Helens magmatic systems from slab to surface
DOI
XF (2002-2005) Collaborative Research: Lithospheric Scale Dynamics of Active Mountain Building along the Himalayan-Tibetan Collision Zone
DOI
XV (2003-2006) Collaborative research of the Earth's largest icebergs
DOI
XF (2009-2011) Collaborative Research: Relating glacier-generated seismicity to ice motion, basal processes and iceberg calving.
DOI
XZ (2005-2012) Collaborative Research: St. Elias Erosion/Tectonics Project
DOI
XQ (2006-2006) Collaborative Research: Understanding Fault Zone Compliance by Seismic Probing of InSAR Anomalies, Mojave Fault-Zone Compliance
DOI
XC (2006-2010) Collaborative Research: Understanding the causes of continental intraplate tectonomagmatism: A case study in the Pacific Northwest
DOI
X6 (2013-2013) Collaborative Research: Unlocking the Seismic Signature of Rivers
DOI
XI (2007-2010) Collision of the Burma Arc accretionary prism and foldbelt with the Ganges-Brahmaputra Delta in Bangladesh
DOI
XT (1997-1998) Colorado BB Array - Lodore
DOI
XH (1994-1995) Colorado Plateau-Great Basin Network, Basin & Range Add On
DOI
XM (1999-2001) Colorado Plateau/Rio Grand Rift/Great Plains Seismic Transect
DOI
XG (2015-2015) Colorado River Runoff Pilot Project
DOI
XP (2008-2009) Colorado Rockies Experiment and Seismic Transect
DOI
XL (2002-2007) COnsortium for Arizona Reconnaissance Seismic Experiment
XC (1995-1996) Cooperative Project on South Island New Zealand
DOI
XB (2008-2008) Costa Rica Active Source OBS Experiment
XA (1983-1983) Costa Rica Seismic Experiment
X8 (2011-2011) Coulman High VSP, Antarctica, 2010
DOI
XW (2012-2012) CRESIS Greenland 2012
DOI
XT (2003-2005) Crust-Mantle Interactions during Continental Growth and High-Pressure Rock Exhumation at an Oblique Arc-Continent Collision Zone: SE Caribbean Margin
DOI
XR (2004-2007) CSEDI: Observational and Theoretical Constraints on the Structure and Rotation of the Inner Core
DOI
X9 (2008-2011) Dallas Earthquake Swarm
DOI
XV (2025-2028) Danish landslides 2025 DOI
X4 (2023-2023) DAS experiment at Nanjing University Campus (Nanjing, China) DOI
XU (2005-2005) Deception Island Passive/Active Source
XO (2010-2010) Deep Fault Drilling Project, Alpine Fault, New Zealand: Whataroa-Wanganui Passive Seismology Experiment 2010
DOI
X4 (2007-2009) Deep Structure of the Northeastern Tibet Collision Zone: INDEPTH IV
DOI
XN (2007-2007) Deep Structure of the Nortwaster Tibet Collison Zone
DOI
X8 (2012-2017) Deep Structure of Three Continental Sutures in Eastern North America
DOI
XZ (2020-2024) DeepTrigger Chile deployment
DOI
XT (2011-2013) Deformation and Magmatic Modification of a Steep Continental Margin, Western ID-Eastern OR
DOI
XK (2016-2016) Delineating preferential flow paths from recharge for water planning and management
DOI

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