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
ZQ (2011-2012) Oklahoma RAMP
DOI
O2 Oklahoma Consolidated Temporary Seismic Networks
DOI
OH Ohio Seismic Network
DOI
OY OGS Mobile LAB
DOI
X7 (2020-2022) Ochtendung fault line
XM (1998-1998) Ocean Seismic Network Exp.
DOI
OO Ocean Observatories Initiative
DOI
OW Ocean Networks Canada Onshore Network DOI
OI Oceania International DOI
Z6 (2018-2018) OBS survey of Kilauea's submarine south flank following the May 4, 2018 M6.9 earthquake and Lower East Rift Zone eruption
DOI
2B (2010-2011) OBSIP: Bering Sea Active Source Experiment
XC (2012-2014) Observing Pine Island Glacier (PIG) ice shelf deformation and fracture using a GPS and Seismic Network
DOI
3A (2023-2023) Observing 3D propagation at the Atlantis II Seamount Complex
OV Observatorio Vulcanológico y Sismológico de Costa Rica
DOI
LO Observatorio Sismológico Politécnico Loyola
DOI
OC Observatorio Sismológico CIGEOBIO CONICET
UY Observatorio Geofisico del Uruguay
DOI
VV Observatorio Argentino de Vigilancia Volcánica Argentina
DJ Observatoire Géophysique d'Arta Djibouti DOI
YF (2012-2027) Observation of a glacier calving event using a network of GPS and Seismic sensors
DOI
YS (2001-2003) Observational Constraints on Persistent Water Level Changes Generated by Seismic Waves
DOI
KK Ọbáfémi Awólówò University Digital Seismograph Network Nigeria
ZL (2017-2018) NZ3D FWI
DOI
3C (2017-2018) NZ3D FWI
DOI
ZH (2003-2003) NW Zagros Transet
DOI
6T (2018-2025) NT Spiral Array DOI
YP (2008-2008) NTS October 2008
ZP (2025-2025) NTNU_SUBMERSE DOI
ZH (2024-2025) NSFGEO-NERC: Investigating the direct influence of meltwater on Antarctic Ice Sheet dynamics
DOI
8E (2016-2017) NSF funded project on winds in complex terrain at Perdigao
DOI
4P (2006-2018) NSF EarthScope USArray Magnetotelluric Transportable and Backbone Arrays DOI
2E (2014-2016) Norway Microbarom Study 2014
DOI
YY (2005-2007) Norway 05
3N (2023-2024) North York Moors Array DOI
YQ (2004-2005) Northwest Nevada Seismic Experiment, Deep crustal structure of the northernmost Basin and Range and its relation to extensional faulting
DOI
NW Northwestern University Seismic Network
4F (2015-2025) North Texas Earthquake Study: Venus (Johnson County), TX
DOI
ZW (2013-2024) North Texas Earthquake Study: Azle and Irving/Dallas
DOI
ZU (2008-2008) North Tanzania
XA (1994-1994) Northridge Aftershock Studies
DOI
N0 North Osetia Regional Seismic Network of the Russian Federation DOI
XL (1995-1996) North Korea Nuclear Site Investigation
DOI
UI North Idaho Seismic Network
NF North Fork Valley Seismic Network United States of America
8K (2016-2022) Northern Volcanic Zone Iceland
DOI
Z7 (2010-2015) Northern Volcanic Zone
DOI
6B (2006-2009) Northern North China Seismic Array
DOI
YR (2004-2004) Northern Lake Tahoe Magma Injection Seismic Monitoring Network
1Q (2019-2021) Northern Lake Abaya Broadband Network DOI
YF (2004-2004) Northern IL. aftershock survey

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