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The 1755 tsunami caused significant damage all along the Portuguese coastline.

According to witnesses’ accounts, more than 2000 people died due to the earthquake, fire, and tsunami in the city of Setubal, which corresponds to over 16.9% of the city’s 18th century population [1].

West of Setubal, the stretch of beaches is famous for its beauty and natural landscape because it is located within the Arrabida Natural Park, which is classified as a Protected Natural Area [2].

For these reasons, the beaches are popular among residents and tourists, especially during summer.

After this historic disaster, the city was rebuilt, with significant development that extended to the entire municipality.

In the present-day, Setubal municipality has diversified land use along its coastline, which is also located on low ground (3–4 m above mean sea level), thus increasing the exposure of coastal communities to a future tsunami scenario.

The TAD is also connected to the Municipal Emergency Response Centre, which enables it to disseminate real-time written and spoken messages.

In November 2016, temporary tsunami evacuation signs were installed in the park.

This instrument network is part of the first attempt to implement a functional tsunami warning system in the country.Thus, tsunami numerical modelling was carried out by considering the 1969 tsunami and the 1755 tsunami scenarios.The model results show that the first tsunami wave arrived within 30–40 min of the earthquake.In addition, considering the variety of exposed elements in the central area of the municipality, in the period 2011–2014, a Tsunami Alerting Device (TAD) was installed at Albarquel Park (Point 6 in Figure 1).This was an experimental installation resulting from the collaboration between the SMPCB, the Instituto Portugues do Mar e da Atmosfera (IPMA), and the Joint Research Centre of the European Commission (JRC-EU).

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