Earthquakes in South Sandwich Islands Region
Right now
The most recent data we hold from ISC arrived 78 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
Reported by ISC 7 days ago.
It is the 5th strongest of the 7 detections recorded within 20 km of this point since 30 August 2026. The last comparable one was on 30 August 2026.
What the source measured
ISC reported: South Sandwich Islands region
ISC recorded magnitude 5.3 at a depth of 100 km.
The seismic region given by the source is South Sandwich Islands region.
This is the highest magnitude we have recorded at this point, over 94 readings since 2 September 2026 — the previous range was 5.2 to 5.3.
Nearby, since 30 August 2026
- August 30, 2026 · score 17 · 9.4 km
- August 30, 2026 · score 17 · 9.4 km
- August 30, 2026 · score 17 · 13.8 km
How we know
One source: ISC. Not yet confirmed by a second, independent source.
Our own score for this event is 12 out of 100, at 57 % 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) | 12 / 100 |
| Our confidence | 57% |
| Coordinates | -56.5700, -27.1700 |
| Nearest City | Ushuaia (2548 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-02T08:54:05.000Z |
| Source | http://www.isc.ac.uk/cgi-bin/web-db-run?event_id=646310817&out_format=IMS1.0&request=COMPREHENSIVE |
Score Breakdown
Technical Details
| Mag | 5.3 |
| Depth | 100 |
| MagType | MB |
| Region | South Sandwich Islands region |
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.
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