M4.7 earthquake — South Sandwich Islands region

An magnitude 4.7 earthquake occurred South Sandwich Islands region on Jul 18, 2026 at 16:57 UTC. The epicenter was at a depth of 121 km — an intermediate-depth earthquake. Intermediate quakes spread their energy over a wider area and are often felt across a broad region.
Event data
| Magnitude | M4.7 |
|---|---|
| Depth | 120.9 km |
| Coordinates | -59.420, -26.214 |
| Time | Jul 18, 16:57 UTC |
| Location | South Sandwich Islands region |
| USGS event ID | us7000t1n0 |
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 |
|---|---|---|---|
| M6.0 | 180 km | Aug 12, 11:47 UTC | South Sandwich Islands region |
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.