M4.8 earthquake — 62 km ESE of Koseda, Japan
An magnitude 4.8 earthquake occurred 62 km ESE of Koseda, Japan on Aug 4, 2026 at 19:56 UTC. The epicenter was at a depth of 28 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 | M4.8 |
|---|---|
| Depth | 28.1 km |
| Coordinates | 30.095, 131.202 |
| Time | Aug 4, 19:56 UTC |
| Location | 62 km ESE of Koseda, Japan |
| USGS event ID | us6000ti40 |
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.
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.