Alaska Regional Network, University of Alaska-Fairbanks -- Fairbanks, United States (AK)
Alaska Tsunami Warning Seismic System, West Coast and Alaska Tsunami Warning Center -- Anchorage, United States (AT)
Geoscience Australia, Canberra, ACT, Australia -- Canberra, Australia (AUST)
Seismological Survey of Serbia -- Belgrade, Serbia (BEO)
British Geological Survey -- Edinburgh, United Kingdom (BGS)
National Institute for Earth Physics -- Bucharest, Romania (NIEP)
HUN-REN EPSS Kövesligethy Radó Seismological Observato -- Budapest, Hungary (BUD)
Centre National de la Recherche Scientifique et Technique -- Rabat, Morocco (CNRST)
Badan Meteorologi, Klimatologi dan Geofisika -- Jakarta, Indonesia (BMKG)
GeoForschungsZentrum (GFZ) -- Potsdam, Germany (GFZ)
Geophysical Survey of the Russian Academy of Sciences -- Obninsk, Russia (GSRAS)
Instituto Portugues do Mar e da Atmosfera -- Lisbon, Portugal (IPMA)
Kandilli Observatory and Earthquake Research Institute -- Istanbul, Turkey (KOERI)
Landsamt fur Geologie, Rohstoffe und Bergbau -- Freiburg, Germany (LED)
Instituto Geografico Nacional -- Madrid, Spain (IGN)
Ukrainian NDC, Main Center of Special Monitoring -- Kyiv, Ukraine (MCSM)
Malaysian Meteorological Department -- Kuala Lumpur, Malaysia (MET)
National Earthquake Information Center, U.S. Geological Survey -- Golden, United States (NEIC)
Norwegian Seismic Array -- Lillestrom, Norway (NORSAR)
Republican Seismic Survey Center or Azerbaijan National Academy of Sciences -- Baku, Azerbaijan (RSSC)
EMSC -- Arpajon, France (SC4)

GeoForschungsZentrum (GFZ) -- Potsdam, Germany (GFZ)
National Earthquake Information Center, U.S. Geological Survey -- Golden, United States (NEIC)