M4.7 earthquake — 6 km W of Onna, Japan
An magnitude 4.7 earthquake occurred 6 km W of Onna, Japan on Aug 21, 2026 at 00:01 UTC. The epicenter was at a depth of 44 km — a shallow earthquake. Shallow quakes concentrate their energy near the surface, so they tend to produce stronger shaking close to the epicenter.
Event data
| Magnitude | M4.7 |
|---|---|
| Depth | 44.1 km |
| Coordinates | 26.485, 127.786 |
| Time | Aug 21, 00:01 UTC |
| Location | 6 km W of Onna, Japan |
| USGS event ID | us6000tmc4 |
What this magnitude typically means
Light earthquakes are felt by most people nearby but rarely cause damage. Distance, depth, and soil type determine whether a quake feels sharp or barely noticeable. Tremor does not compute a single local shaking figure here, because how strong a quake feels at any address depends on distance, depth and local geology — open the interactive globe to explore the ShakeMap and estimated intensity.
Nearby recent earthquakes
| Magnitude | Distance | Time (UTC) | Location |
|---|---|---|---|
| M4.4 | 291 km | Aug 19, 11:43 UTC | 151 km NW of Uken, Japan |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.