Earthquakes in Central Mid-atlantic Ridge
Right now
The most recent data we hold from ISC arrived 45 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 yesterday.
No stronger detection stands among the 5 recorded within 20 km of this point since 4 September 2026 — 2 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
ISC reported: Central Mid-Atlantic Ridge
ISC recorded magnitude 5.1 at a depth of 10 km.
The seismic region given by the source is Central Mid-Atlantic Ridge.
Nearby, since 4 September 2026
- September 4, 2026 · score 17 · 1.5 km
- September 4, 2026 · score 9 · 3.0 km
- September 4, 2026 · score 9 · 5.6 km
How we know
One source: ISC. Not yet confirmed by a second, independent source.
Our own score for this event is 17 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) | 17 / 100 |
| Our confidence | 57% |
| Coordinates | 9.4180, -40.8730 |
| Nearest City | Apicum-Açu (1303 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-04T21:38:41.160Z |
| Source | http://www.isc.ac.uk/cgi-bin/web-db-run?event_id=646383832&out_format=IMS1.0&request=COMPREHENSIVE |
Score Breakdown
Technical Details
| Mag | 5.14 |
| Depth | 10 |
| MagType | mb |
| Region | Central Mid-Atlantic Ridge |
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 17/100, in Central Mid-atlantic Ridge, based on data from isc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.