M5.4 earthquake South Sandwich Islands region
A magnitude 5.4 earthquake struck South Sandwich Islands region at Sep 19, 5:11 AM ET, 10 km deep, moderate – felt widely, some damage to weak buildings.
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| Magnitude | 5.4 mww |
| Time | 19 Sept 2025, 09:11 UTC |
| Location | -58.750°, -24.665° – South Sandwich Islands region |
| Depth | 10.0 km |
| Felt reports | 0 |
| Max. estimated intensity (MMI) | 3.1 |
| PAGER alert | green |
| USGS event | us7000qx91 |
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 5.6 | South Sandwich Islands region · PAGER green | Dec 17, 12:05 PM 303 d ago | 35 km | – |
| 5.6 | South Sandwich Islands region · PAGER green | Nov 5, 5:03 PM 345 d ago | 23 km | – |
| 5.5 | South Sandwich Islands region · PAGER green | Dec 8, 1:41 PM 312 d ago | 30 km | – |
| 5.3 | South Sandwich Islands region | Dec 14, 7:43 PM 306 d ago | 72 km | – |
| 5.2 | South Sandwich Islands region | Jul 31, 2:58 PM 77 d ago | 35 km | – |
| 5.2 | South Sandwich Islands region | Oct 21, 2:11 PM 360 d ago | 85 km | – |
| 5.2 | South Sandwich Islands region | Sep 20, 11:31 AM 391 d ago | 10 km | – |
| 5.1 | South Sandwich Islands region | Sep 11, 8:55 PM 35 d ago | 10 km | – |
| 5.1 | South Sandwich Islands region | Jun 20, 12:44 AM 119 d ago | 61 km | – |
| 5.1 | South Sandwich Islands region | May 14, 5:55 AM 155 d ago | 51 km | – |
| 5.1 | South Sandwich Islands region | Mar 14, 4:34 AM 217 d ago | 35 km | – |
| 5.1 | South Sandwich Islands region | Sep 24, 9:36 AM 387 d ago | 69 km | – |
About this earthquake
How strong was the South Sandwich Islands region earthquake?
Magnitude 5.4 (mww), moderate – felt widely, some damage to weak buildings. Depth 10 km. Strongest estimated shaking: intensity 3.1 on the Modified Mercalli scale.
Was it felt?
No felt reports have been submitted to the USGS so far.
Were there aftershocks?
2 earthquakes within 100 km in the following two weeks are in our records, the strongest M5.2.
More
Source: U.S. Geological Survey (USGS) earthquake catalog, real-time feeds and FDSN event service; magnitudes and locations are revised by seismologists for hours after an event. Times are Eastern (ET) unless marked UTC. Not an alert service: for warnings follow local authorities and tsunami centers.