3.6
Earthquake Details: northeastern Chiba
Oct 1, 2026, 12:31:00
A magnitude 3.6 earthquake occurred near northeastern Chiba on Oct 1, 2026 at 12:31:00. 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
Latitude35.7000
Longitude140.7000
Event IDjma:20261001213147
Magnitude3.6
Updated:Oct 1, 2026, 12:35:00 UTC
External Resources
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Time & depth
- Local time
- Oct 1, 2026, 21:31:00 GMT+9
- UTC
- Oct 1, 2026, 12:31:00 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
M4.3Izu Islands, Japan regionBeforeM4.3near the south coast of Honshu, JapanBeforeM4.9near the south coast of Honshu, JapanBeforeM4.4102 km E of Miyako, JapanBeforeM3.0northeastern ChibaBeforeM2.9Aizu, FukushimaBeforeM4.412 km SSE of Hasaki, JapanBeforeM3.5northeastern ChibaBeforeM3.2southern SaitamaBeforeM5.1northeastern ChibaBeforeM3.3near the east coast of Honshu, JapanAfterM2.7northern IbarakiAfter
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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 1, 2026, 12:35 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.