3.9
Earthquake Details: southern Ibaraki
Oct 1, 2026, 21:01:00
A magnitude 3.9 earthquake occurred near southern Ibaraki on Oct 1, 2026 at 21:01:00. The seismic event was recorded at a depth of 500 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth500 km
Significance0
Latitude36.1000
Longitude139.9000
Event IDjma:20261002060147
Magnitude3.9
Updated:Oct 1, 2026, 21:05:00 UTC
External Resources
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Time & depth
- Local time
- Oct 2, 2026, 06:01:00 GMT+9
- UTC
- Oct 1, 2026, 21:01:00 UTC
500 km · Deep-focus
More than 300 km deep. Deep earthquakes can be felt across a wide area.
Nearby major cities
Nearby event sequence · 12
M4.4102 km E of Miyako, JapanBeforeM3.0northeastern ChibaBeforeM2.9Aizu, FukushimaBeforeM4.412 km SSE of Hasaki, JapanBeforeM3.5northeastern ChibaBeforeM3.2southern SaitamaBeforeM5.1northeastern ChibaBeforeM3.6northeastern ChibaBeforeM3.3near the east coast of Honshu, JapanBeforeM2.7northern IbarakiBeforeM2.6northern IbarakiBeforeM4.52 km NE of Satte, JapanAfter
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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, 21:05 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.