3.9
Earthquake Details: northern Ibaraki
8/7/2026, 6:41:00 PM
A magnitude 3.9 earthquake occurred near northern Ibaraki on 8/7/2026 at 6:41:00 PM. The seismic event was recorded at a depth of 100 km. No tsunami warning was issued.
No Tsunami WarningStatus: reportedType: earthquake
Regional Seismicity
Technical Details
Depth100 km
Significance
Latitude36.8000
Longitude140.6000
Event IDjma:20260808034134
Magnitude3.9
Updated:8/7/2026, 6:45:00 PM
External Resources
View on JMA Official SiteLoading map...
Time & depth
- Local time
- 8/8/2026, 3:41:00 AM GMT+9
- UTC
- 8/7/2026, 6:41:00 PM UTC
100 km · Intermediate-focus
Between 70 and 300 km deep.
Nearby major cities
Nearby event sequence · 10
M2.5Chuetsu, NiigataAfterM3.5off the coast of IwateAfterM2.8off the coast of IwateAfterM5.1eastern Honshu, JapanAfterM4.2eastern Mino, GifuAfterM3.4off the coast of Noto PeninsulaAfterM2.8northeastern ChibaAfterM2.8northern TochigiAfterM4.8207 km SE of Katsuura, JapanAfterM4.378 km E of Noda, JapanAfter
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 7, 2026, 06:45 PM 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.