Earthquakes in South Sandwich Islands Region
Reported by USGS today.
It is the only one we have recorded within 20 km of this point since 4 September 2026.
What the source measured
USGS reported: South Sandwich Islands region
USGS recorded magnitude 5.0 at a depth of 10 km.
How we know
Confirmed by 3 independent sources, including USGS.
Our own score for this event is 9 out of 100, at 68 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Earthquakes |
| Severity | Medium |
| Calamity Score (ours) | 9 / 100 |
| Our confidence | 68% |
| Coordinates | -56.1536, -26.1632 |
| Nearest City | Ushuaia (2619 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-04T06:45:54.522Z |
| Source | https://earthquake.usgs.gov/earthquakes/eventpage/us7000te8r |
Score Breakdown
Technical Details
| Mag | 5 |
| Depth | 10 |
| Tsunami | false |
| Sig | 385 |
| Emsc Mag | 5 |
| Emsc Depth | -10 |
| Emsc MagType | mb |
| Emsc Region | SOUTH SANDWICH ISLANDS REGION |
| Emsc Auth | NEIC |
| Emsc SourceId | 2055598 |
| Gfz Mag | 5.04 |
| Gfz Depth | 10 |
| Gfz MagType | mb |
| Gfz Region | South Sandwich Islands Region |
| MergedSources | [{"id":"emsc_20260904_0000083","source":"emsc","severity":"medium","severityValue":40,"timestamp":1788504354522,"latitude":-56.1536,"longitude":-26.1632},{"id":"gfz_gfz2026rhzd","source":"gfz","severity":"medium","severityValue":40.32,"timestamp":1788504355100,"latitude":-56.034,"longitude":-26.167}] |
Safety Information
If you feel shaking: Drop, Cover, and Hold On. Move away from windows, heavy objects, and exterior walls. After shaking stops, check for injuries and structural damage. Be prepared for aftershocks, which can occur minutes to months after the mainshock. Follow instructions from local emergency management authorities.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens in this area?
Calamity.live data shows a earthquake event with CalamityScore 9/100, in South Sandwich Islands Region, based on data from usgs. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.