4.5
Earthquake Details: off the coast of Iwaki, Fukushima, Japan
8/15/2026, 1:10:00 AM
A magnitude 4.5 earthquake occurred near off the coast of Iwaki, Fukushima, Japan on 8/15/2026 at 1:10:00 AM. 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
Latitude37.1000
Longitude141.2000
Event IDjma:20260815101058
Magnitude4.5
Updated:8/15/2026, 1:14:00 AM
External Resources
View on JMA Official SiteLoading map...
Time & depth
- Local time
- 8/15/2026, 10:10:00 AM GMT+9
- UTC
- 8/15/2026, 1:10:00 AM 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
M3.5off the coast of IwateBeforeM5.1eastern Honshu, JapanBeforeM4.2eastern Mino, GifuBeforeM3.4off the coast of Noto PeninsulaBeforeM2.8northeastern ChibaBeforeM2.8northern TochigiBeforeM4.8207 km SE of Katsuura, JapanBeforeM4.378 km E of Noda, JapanBeforeM3.6southern GunmaBeforeM3.2northern IbarakiAfterM3.7off the coast of IwateAfterM3.8near the east coast of Honshu, 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 15, 2026, 01:14 AM 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.