Rosais Lighthouse: the Ghost Beacon Abandoned After Two Earthquakes

Some lighthouses keep lighting up every night, even after no one is left to live in them. Rosais Lighthouse is one of them: a ghost structure at São Jorge’s most remote tip, its history marked by two natural disasters.

Portugal’s most advanced lighthouse, in 1958

Opened on 1 May 1958, Rosais Lighthouse was, at the time, the most technologically advanced in Portugal’s lighthouse network. Sitting more than 260 metres above sea level, atop dramatic cliffs at the island’s northwestern tip, it had a 27-metre tower and once housed six lighthouse-keeping families, fully self-sufficient in water and energy.

The 1964 seismic crisis

In February 1964, a seismic crisis linked to a nearby submarine eruption forced the evacuation of all staff and families on 18 February. The lighthouse’s rotation mechanism broke down, and the access road was blocked by boulders, only cleared using dynamite.

The 1980 earthquake and permanent abandonment

The lighthouse was reoccupied after the 1964 crisis, but the violent earthquake of 1 January 1980 — the same one that devastated Angra do Heroísmo on Terceira — caused landslides on the Rosais cliffs and damaged nearly all its systems. The lighthouse was permanently evacuated, running ever since on solar power alone, with no resident keepers.

A landscape of ruins and wind

Today, only the structures of the former houses, workshops, barns, and stables remain, all in ruins. The area, along with the surrounding islets and cliffs, was classified as a Site of Community Importance under the EU Habitats Directive.

Planning your visit

• Access: dirt road from Rosais parish.
• Safety: don’t go beyond the lighthouse’s boundary walls; the cliffs have been unstable since the 1980 earthquake.
• View: panoramic view over the Rosais islets, with Faial and Pico in the background.

Best time to visit

Clear-sky days let you see the neighbouring islands from the viewpoint by the lighthouse.

Nearby highlights

Sete Fontes Forest Park is about a 15-minute walk away, an easy way to combine both stops.

After the lighthouse, head back to the forest park or on to Velas to complete your route through the island’s western end.

Featured image — Photo: José Luís Ávila Silveira/Pedro Noronha e Costa / Wikimedia Commons, public domain