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Earthquake of magnitude 4.1 strikes southern Portugal

By Thomson Reuters Jun 28, 2026 | 7:23 AM

LISBON, June 28 (Reuters) – A 4.1 magnitude earthquake struck southern Portugal’s tourist region of the Algarve on Sunday ​but did not appear to ‌cause any injuries or damage, the country’s sea and atmosphere institute (IPMA) said.

The southern Lisbon region and the Azores archipelago lie in a seismically ‌active ​zone marking the boundary ⁠between the Eurasian ⁠and African tectonic plates, though seismic activity has been relatively low recently.

IPMA said that the earthquake occurred at 7:59 ​a.m. and was felt in the cities of Lagos and Portimao, but ⁠based on available information ⁠it did not cause any ​personal injury or material damage.

The earthquake’s epicentre ​was located in the Atlantic Ocean about ‌70 km off Cape St. Vincent, it said.

The Portuguese capital was devastated by a massive earthquake and subsequent tsunami ⁠in 1755, one of the deadliest seismic events in European history, estimated to have killed between ⁠30,000 ‌and 40,000 people.

The Lisbon region ⁠and southern Portugal have experienced ​periodic ‌earthquakes since then, with the ​strongest in ⁠1969, when a magnitude 7.9 quake killed at least 13 people and injured dozens, with its epicentre also located off Cape St. Vincent.

(Reporting by Sergio GoncalvesEditing by ​David Goodman)