Earthquakes in Saint Helena — June 2026
1 earthquakes were recorded in Saint Helena during June 2026, an average of 0.0 per day.
1 reached magnitude 4 or above and 1 reached magnitude 5 or above. The average focal depth was 10 km.
The month's largest event in Saint Helena was a magnitude 5.5 earthquake near Georgetown, Saint Helena on 20 June 2026 at 06:43 UTC. A magnitude 5.5 earthquake radiates roughly 2,682 tons of TNT equivalent in seismic energy.
That is close to the Saint Helena monthly average of 1 events over the period we cover.
100% of events here are shallow (under 70 km), 0% intermediate (70–300 km) and 0% deep-focus (over 300 km). Almost everything here is crustal. That is characteristic of transform faulting or continental deformation rather than subduction — and it means shaking at the surface is strong for the magnitudes involved.
By band, the catalogue holds 1 in the magnitude 5 range.
That is 17% below the 1 events Saint Helena averages per month across the 5 months on record.
This month also holds the strongest earthquake recorded in Saint Helena in our entire catalogue.
Largest earthquakes in Saint Helena, June 2026
1 event listed below, newest first. Times are UTC. Click any column header to re-sort.
| Time (UTC) | Mag | Location | Depth (km) | Country | Details |
|---|---|---|---|---|---|
| 5.5 | Georgetown, Saint Helena | 10.0 | Saint Helena | View details View |
Frequently asked questions
How many earthquakes hit Saint Helena in June 2026?
1 earthquakes were recorded in Saint Helena during June 2026, of which 1 were magnitude 4 or above.
What was the biggest earthquake in Saint Helena in June 2026?
A magnitude 5.5 event near Georgetown, Saint Helena on 20 June 2026.
Other months in Saint Helena
Magnitudes for June 2026 reflect the current USGS review status and may have been revised since first publication. See our guides on the magnitude scale, focal depth and why earthquakes cluster.