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SeismoAtlas

Region · live catalogue

Earthquakes in Portugal

In the last 30 days, 3 earthquakes of magnitude 2.5 or greater were recorded in Portugal; the largest was a magnitude 5.1 earthquake 56 km WNW of Arrifes, Azores, Portugal on 20 Oct 2026.

Data: USGS, GFZ · updated · sources and licences

24 hours
0
all magnitudes
7 days
0
M2.5+
30 days
3
M2.5+

Seismic record

In Portugal, the USGS catalogue lists 10 earthquakes of magnitude 6 or more since 1900 and 34 of magnitude 5 or more since 2000, about one every 1 years. In the 12 months to 13 Oct 2026 it recorded 13 of magnitude 2.5 or more, 12 of them magnitude 4 or more.

The largest since 1900: M7.8 on 28 Feb 1969, 196 km SW of Vila do Bispo, Faro, Portugal. The most recent of magnitude 5 or more: M5.3 on 21 Jul 2026, 173 km NNW of Ribeira Grande, Azores, Portugal.

Counts from the USGS ComCat catalogue (public domain), last compiled 13 Oct 2026. Outside the United States, ComCat is complete from about magnitude 4.5, so smaller local earthquakes may be missing from these counts but appear in the lists below. How these pages are built

Last 24 hours

No earthquakes recorded in Portugal in the last 24 hours.

Earlier this week, magnitude 2.5 and above

None of magnitude 2.5 or greater earlier this week.

Largest in the last 30 days

Largest earthquakes in Portugal in the last 30 days
MagLocationTime (UTC)
5.1mww56 km WNW of Arrifes, Azores, Portugal2 agencies
4.7mb49 km WNW of Arrifes, Azores, Portugal
4.6mb47 km NW of Arrifes, Azores, Portugal2 agencies

Where they occurred

Earthquakes of M2.5+ in Portugal, last 30 daysLisbonPortoBragaAmadora
Earthquakes of M2.5+ in Portugal, last 30 days. Circles grow with magnitude; colour shows depth. Equirectangular, graticule every 2°.

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Largest since 1900

Magnitude 6 and above in Portugal.

Loading the historical catalogue…

Questions

How many earthquakes happen in Portugal?

In the last 30 days, 3 earthquakes of magnitude 2.5 or greater were recorded in Portugal, 0 of them in the last 7 days. In the last 24 hours, 0 earthquakes of any magnitude were recorded. Most small earthquakes are not felt.

What was the largest recent earthquake in Portugal?

The largest in the last 30 days was a magnitude 5.1 earthquake 56 km WNW of Arrifes, Azores, Portugal on 20 Oct 2026, at a depth of 10 km.

What is the largest earthquake recorded in Portugal since 1900?

According to the USGS catalogue, the largest was a magnitude 7.8 earthquake on 28 Feb 1969 (188 km SW of Sagres, Portugal). Magnitudes of early 20th-century earthquakes are less certain than modern ones.

Where can I get official earthquake information for Portugal?

For official information, warnings and safety advice, follow IPMA (https://www.ipma.pt/) and your local civil protection authority. This site compiles agency reports and is not a warning service.

Can earthquakes be predicted?

No. Scientists can estimate how likely strong shaking is in a region over years or decades, but no method predicts the time, place and size of a specific earthquake. Aftershocks are expected after large earthquakes and become less frequent over time.