Earthquakes in Portugal

No events have been recorded in Portugal in the past 30 days, and 5 of the events on record reached magnitude 5 or above — the level at which damage becomes a genuine concern for vulnerable construction. Activity here is almost entirely crustal, which means shaking at the surface is strong relative to the magnitudes involved.

15 earthquakes have been recorded in Portugal in our catalogue, 0 of them in the past 30 days.

The average magnitude is 4.6 and the average focal depth 10 km. 13 events reached magnitude 4 or above and 5 reached magnitude 5 or above.

The strongest earthquake recorded in Portugal in this period was a magnitude 5.3 event near Santa Cruz das Flores, Portugal on 21 July 2026, at a depth of 7 km. A magnitude 5.3 earthquake radiates roughly 1,344 tons of TNT equivalent in seismic energy.

Locations recording the most events include Santa Cruz das Flores (4), Senhora do Rosário (2), Évora (1), Povoação (1), Sobral de Monte Agraço (1).

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 2 range, 1 in the magnitude 3 range, 8 in the magnitude 4 range, 5 in the magnitude 5 range.

No event in this record carries a USGS link to NOAA tsunami information.