EASTERN HONSHU, JAPAN-12 km NNE of Kasukabe, Japan-5.5--6 km N of Iwai, Japan -3.9

Magnitude 5.5 Region EASTERN HONSHU, JAPAN Date time 2026-06-16 10:46:33.2 UTC Location 36.071 ; 139.830 Depth 51 km Distance 20 km N of Koshigaya, Japan / pop: 317,000 / local time: 19:46:33.2 2026-06-16 12 km NNE of Kasukabe, Japan / pop: 206,000 / local time: 19:46:33.2 2026-06-16 Source parameters reviewed by a seismologist ----------- I felt this earthquake All data providers for this event: 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) French Polynesian Tsunami Warning Center - CEA -- Papeete, Polynesie Francaise - Tahiti (CPPT) EMSC - CSLOC -- Arpajon, France (CSLC) 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) Japan Meteorological Agency Seismic Network -- Tokyo, Japan (JMA) Kandilli Observatory and Earthquake Research Institute -- Istanbul, Türkiye (KOERI) Landsamt fur Geologie, Rohstoffe und Bergbau -- Freiburg, Germany (LED) Carpathian Seismological Department, Ukraine Academy of Science -- Lviv, Ukraine (LVV) Instituto Geografico Nacional -- Madrid, Spain (IGN) Ukrainian NDC, Main Center of Special Monitoring -- Kyiv, Ukraine (MCSM) National Earthquake Information Center, U.S. Geological Survey -- Golden, United States (NEIC) The research institute NORSAR -- Kjeller, Norway (NORSAR) Geoazur (Universite Cote d'Azur, IRD, CNRS, Observatoire de la Cote d'Azur) -- Nice, France (OCA) EMSC -- Arpajon, France (SC4) Seismological and Volcanological Observatory Center -- Dhamar, Yemen (YSVOC) Institute of Geosciences, Polytechnic University of Tirana -- Tirana, Albania (IGEO) Further information can be found at: National Earthquake Information Center, U.S. Geological Survey -- Golden, United States (NEIC) Japan Meteorological Agency Seismic Network -- Tokyo, Japan (JMA) GeoForschungsZentrum (GFZ) -- Potsdam, Germany (GFZ) ----------- Magnitude 3.9 Region EASTERN HONSHU, JAPAN Date time 2026-06-16 10:55:30.0 UTC Location 36.100 ; 139.900 Depth 50 km Distance 17 km N of Noda, Japan / pop: 121,000 / local time: 19:55:30.0 2026-06-16 6 km N of Iwai, Japan / pop: 42,400 / local time: 19:55:30.0 2026-06-16 Source parameters provided by: Japan Meteorological Agency Seismic Network -- Tokyo, Japan (JMA) ----------- I felt this earthquake All data providers for this event: Japan Meteorological Agency Seismic Network -- Tokyo, Japan (JMA) Further information can be found at: National Earthquake Information Center, U.S. Geological Survey -- Golden, United States (NEIC) Japan Meteorological Agency Seismic Network -- Tokyo, Japan (JMA) GeoForschungsZentrum (GFZ) -- Potsdam, Germany (GFZ)