M4.6 earthquake — 57 km ESE of Koseda, Japan

An magnitude 4.6 earthquake occurred 57 km ESE of Koseda, Japan on Sep 19, 2026 at 07:08 UTC. The epicenter was at a depth of 39 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 | 38.5 km |
| Coordinates | 30.167, 131.190 |
| Time | Sep 19, 07:08 UTC |
| Location | 57 km ESE of Koseda, Japan |
| USGS event ID | us7000tii4 |
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 |
|---|---|---|---|
| M5.1 | 122 km | Sep 12, 20:32 UTC | 101 km S of Yudomari, Japan |
| M4.6 | 228 km | Sep 18, 01:07 UTC | 20 km ESE of Tsunō, Japan |
Earthquake activity in this area
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.