# Network Code,Network Name,Network Operator,Network Country (ISO & Name),Network Website,Deployment Country (if different),Digital Object Identifier (DOI)
H2,Hawaii 2 Observatory,University of Hawaii,United States of America,http://www.soest.hawaii.edu/H2O/,United States of America,
HA,"Hellenic Seismological Network, University of Athens, Seismological Laboratory",University of Athens,Greece,http://dggsl.geol.uoa.gr/,Greece,10.7914/SN/HA
HC,Seismological Network of Crete,Technological Educational Institute of Crete,Greece,http://gaia.chania.teicrete.gr/uk/,"Crete and South Aegean, Greece",10.7914/SN/HC
HE,Finnish National Seismic Network,University of Helsinki,Finland,,Finland,10.14470/UR044600
HF,Swedish Seismic Array Network,Swedish Defence Research Agency,Sweden,http://snsn.geofys.uu.se/,Sweden,
HG,High-Gain Long-Period Network,Albuquerque Seismological Laboratory/USGS,United States of America,,Global ,10.7914/SN/HG
HI,ITSAK Strong Motion Network,Institute of Engineering Seimology Earthquake Engineering,Greece,,Greece,10.7914/SN/HI
HK,Hong Kong Seismograph Network,Hong Kong Observatory,China,http://www.hko.gov.hk/gts/equake/sp_seismo_network_intro_e.htm,China,
HL,National Observatory of Athens Seismic Network,"National Observatory of Athens, Institute of Geodynamics, Athens",Greece,http://bbnet.gein.noa.gr,Greece,10.7914/SN/HL
HM,GeoRisk Seismic Network, GeoRisk Earthquake Engineering,Hungary,http://www.foldrenges.hu,Hungary,10.7914/SN/HM
HN,Hungarian National Infrasound Network,Institute of Earth Physics and Space Science,Hungary,,Hungary,10.14470/UA114590
HP,"University of Patras, Seismological Laboratory",University of Patras,Greece,http://seismo.geology.upatras.gr/heliplots,Greece,10.7914/SN/HP
HR,Croatian Research Seismic Network,University of Zagreb,Croatia,,Croatia,
HS,Hessischer Erdbebendienst,"Hessian Agency for Nature Conservation, Environment and Geology",Germany,https://www.hlnug.de/themen/geologie/erdbeben,Germany,10.7914/SN/HS
HT,Aristotle University of Thessaloniki Seismological Network,Aristotle University of Thessaloniki,Greece,http://geophysics.geo.auth.gr/the_seisnet/WEBSITE_2005/station_index_en.html,Greece,10.7914/SN/HT
HU,Hungarian National Seismological Network,Institute of Earth Physics and Space Science,Hungary,http://www.seismology.hu/index.php/en/observatory/stations,Hungary,10.14470/UH028726
HV,Hawaiian Volcano Observatory Network,USGS Hawaiian Volcano Observatory,United States of America,http://hvo.wr.usgs.gov,United States of America,10.7914/SN/HV
HW,Hanford Washington Seismic Network,Pacific Northwest National Laboratory,United States of America,,United States of America,
HY,UEH Seismic Network,Université d'Etat d'Haiti,Haiti,,Haiti,10.7914/SN/HY
HZ,Hasting Micro-Seismic Consulting,Private Consulting Service,United States of America,http://hmscinc.net,United States of America,10.7914/kha2-md06