3.4
Earthquake Details: near the east coast of Honshu, Japan
Oct 4, 2026, 11:56:00
A magnitude 3.4 earthquake occurred near near the east coast of Honshu, Japan on Oct 4, 2026 at 11:56:00. The seismic event was recorded at a depth of 400 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth400 km
Significance0
Latitude39.1000
Longitude142.1000
Event IDjma:20261004205643
Magnitude3.4
Updated:Oct 4, 2026, 11:58:00 UTC
External Resources
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Time & depth
- Local time
- Oct 4, 2026, 20:56:00 GMT+9
- UTC
- Oct 4, 2026, 11:56:00 UTC
400 km · Deep-focus
More than 300 km deep. Deep earthquakes can be felt across a wide area.
Nearby major cities
Nearby event sequence · 12
M5.1northeastern ChibaBeforeM3.6northeastern ChibaBeforeM3.3near the east coast of Honshu, JapanBeforeM2.7northern IbarakiBeforeM2.6northern IbarakiBeforeM5.0off the coast of SanrikuBeforeM3.9southern IbarakiBeforeM4.52 km NE of Satte, JapanBeforeM4.3off the coast of SanrikuBeforeM3.6off the coast of UrakawaAfterM3.4near the south coast of Honshu, JapanAfterM4.1off the coast of FukushimaAfter
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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: Oct 4, 2026, 11:58 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.