EASTERN HONSHU, JAPAN--12 km N of Ōmachi, Japan -4.1

Magnitude 4.1 Region EASTERN HONSHU, JAPAN Date time 2026-04-22 17:42:30.0 UTC Location 36.600 ; 137.900 Depth 10 km Distance 26 km WSW of Nagano, Japan / pop: 360,000 / local time: 02:42:30.0 2026-04-23 12 km N of Ōmachi, Japan / pop: 30,500 / local time: 02:42:30.0 2026-04-23 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) EMSC is the European infrastructure for seismological products in