M4.8 earthquake — 43 km ESE of Koseda, Japan
An magnitude 4.8 earthquake occurred 43 km ESE of Koseda, Japan on Aug 4, 2026 at 19:56 UTC. The epicenter was at a depth of 45 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 | 45.0 km |
| Coordinates | 30.208, 131.047 |
| Time | Aug 4, 19:56 UTC |
| Location | 43 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.
Nearby recent earthquakes
| Magnitude | Distance | Time (UTC) | Location |
|---|---|---|---|
| M5.2 | 220 km | Aug 1, 19:10 UTC | 48 km ESE of Tsunō, Japan |
| M4.6 | 246 km | Aug 2, 10:00 UTC | 14 km SE of Honmachi, Japan |
| M4.6 | 255 km | Aug 1, 16:07 UTC | 14 km WSW of Honmachi, Japan |
| M4.9 | 275 km | Aug 1, 12:47 UTC | 3 km W of Matsubase, Japan |
| M5.0 | 278 km | Jul 30, 13:47 UTC | 2 km WNW of Uto, Japan |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.