M4.6 earthquake — 68 km ESE of Onagawa Chō, Japan
An magnitude 4.6 earthquake occurred 68 km ESE of Onagawa Chō, Japan on Aug 4, 2026 at 14:00 UTC. The epicenter was at a depth of 46 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 | M4.6 |
|---|---|
| Depth | 46.1 km |
| Coordinates | 38.290, 142.207 |
| Time | Aug 4, 14:00 UTC |
| Location | 68 km ESE of Onagawa Chō, Japan |
| USGS event ID | us6000ti0a |
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 |
|---|---|---|---|
| M4.7 | 117 km | Aug 25, 20:23 UTC | 77 km E of Tomioka, Japan |
| M5.6 | 144 km | Aug 26, 19:21 UTC | 209 km ESE of Ōfunato, Japan |
| M4.4 | 151 km | Aug 23, 00:32 UTC | 90 km ESE of Tomioka, Japan |
| M4.8 | 203 km | Aug 26, 06:54 UTC | 147 km E of Miyako, Japan |
| M4.8 | 260 km | Aug 27, 19:54 UTC | 63 km NE of Kuji, Japan |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.