Earthquakes in Portugal — May 2025
1 earthquakes were recorded in Portugal during May 2025, an average of 0.0 per day.
1 reached magnitude 4 or above and 0 reached magnitude 5 or above. The average focal depth was 10 km.
The month's largest event in Portugal was a magnitude 4.6 earthquake near Senhora do Rosário, Portugal on 31 May 2025 at 00:18 UTC. A magnitude 4.6 earthquake radiates roughly 120 tons of TNT equivalent in seismic energy.
That is below the Portugal monthly average of 2 events over the period we cover — a comparatively quiet month, and level with the 1 recorded the previous month.
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 4 range.
That is 33% below the 2 events Portugal averages per month across the 10 months on record.
Largest earthquakes in Portugal, May 2025
1 event listed below, newest first. Times are UTC. Click any column header to re-sort.
| Time (UTC) | Mag | Location | Depth (km) | Country | Details |
|---|---|---|---|---|---|
| 4.6 | Senhora do Rosário, Portugal | 10.0 | Portugal | View details View |
Frequently asked questions
How many earthquakes hit Portugal in May 2025?
1 earthquakes were recorded in Portugal during May 2025, of which 1 were magnitude 4 or above.
What was the biggest earthquake in Portugal in May 2025?
A magnitude 4.6 event near Senhora do Rosário, Portugal on 31 May 2025.
Other months in Portugal
Magnitudes for May 2025 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.