4.6
Earthquake Details: 68 km ESE of Onagawa Chō, Japan
Aug 4, 2026, 14:00:26
A magnitude 4.6 earthquake occurred near 68 km ESE of Onagawa Chō, Japan on Aug 4, 2026 at 14:00:26. The seismic event was recorded at a depth of 46.057 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth46.057 km
Significance326
Latitude38.2901
Longitude142.2073
Event IDus6000ti0a
Magnitude4.6
Updated:Aug 27, 2026, 22:22:46 UTC
External Resources
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Time & depth
- Local time
- Aug 4, 2026, 23:00:26 GMT+9
- UTC
- Aug 4, 2026, 14:00:26 UTC
46.057 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
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Earthquake information is automatically aggregated from the official seismic agencies listed below. Preliminary measurements can change as agencies review an event; use local emergency authorities for safety decisions. Latest successful data update: Aug 27, 2026, 22:22 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under CC BY 4.0. CC BY 4.0
- JMA — Source: Japan Meteorological Agency (JMA).
- Geoscience Australia — Based on Australian Earthquakes data by Geoscience Australia. © Commonwealth of Australia. Licensed under CC BY 4.0; the section 5 disclaimer applies. CC BY 4.0
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.