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
HW	Hanford Washington Seismic Network	Pacific Northwest National Laboratory (PNL)		—
HV	Hawaiian Volcano Observatory Network	USGS Hawaiian Volcano Observatory (HVO)		DOI
HU	Hungarian National Seismological Network	Geodetic and Geophysical Research Institute		DOI
HT	Aristotle University of Thessaloniki Seismological Network	Aristotle University of Thessaloniki		DOI
HS	Hessischer Erdbebendienst	Hessian Agency for Nature Conservation, Environment and Geology (HLNUG)		DOI
HP	University of Patras, Seismological Laboratory	University of Patras		DOI
HN	Hungarian National Infrasound Network	Geodetic and Geophysical Research Institute	—	DOI
HM	GeoRisk Seismic Network	GeoRisk Earthquake Engineering		DOI
HL	National Observatory of Athens Seismic Network	National Observatory of Athens, Institute of Geodynamics, Athens		DOI
HK	Hong Kong Seismograph Network	Hong Kong Observatory		—
HI	ITSAK Strong Motion Network	(ITSAK) Institute of Engineering Seimology Earthquake Engineering		DOI
HG	High-Gain Long-Period Network	Albuquerque Seismological Laboratory (ASL)/USGS		DOI
HF	Swedish Seismic Array Network	Swedish Defence Research Agency (FOI)		—
HE	Finnish National Seismic Network	University of Helsinki		DOI
HC	Seismological Network of Crete	Technological Educational Institute of Crete		DOI
HA	Hellenic Seismological Network, University of Athens, Seismological Laboratory	University of Athens		DOI
H2	Hawaii 2 Observatory	University of Hawaii (UH)		—

Network Data API

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