M4.8 earthquake — South Sandwich Islands region
An magnitude 4.8 earthquake occurred South Sandwich Islands region on Sep 29, 2026 at 04:16 UTC. The epicenter was at a depth of 35 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 | 35.1 km |
| Coordinates | -55.316, -28.210 |
| Time | Sep 29, 04:16 UTC |
| Location | South Sandwich Islands region |
| USGS event ID | us6000tyab |
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 |
|---|---|---|---|
| M4.5 | 299 km | Sep 22, 23:30 UTC | South Sandwich Islands region |
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.