Earthquakes in Algarve

The Great Earthquake of 1755 (estimated M8.5–9.0) almost completely destroyed Faro, Lagos, Portimão, and other Algarve towns, generating a devastating tsunami. It is the greatest natural disaster in Portuguese history.

Yes. The Algarve coast is vulnerable to tsunamis generated by the Horseshoe Fault and the Azores-Gibraltar Fault Zone. IPMA issues tsunami alerts and evacuation plans exist for the coastal zone.

Earthquakes felt by the population (M2.5+) in the Algarve occur a few times a year. Most are small and cause no damage, but they underline the importance of preparedness for seismic emergencies.