HAZARDOUS

Title: Risk assessment associated with the formation and evolution of detritic and lavic fajãs in the Portuguese volcanic archipelagos

Funding: PTDC/CTA-GEO/0798/2020, funded by FCT

Project Coordinator: Rui Quartau

Address: rui.quartau@hidrografico.pt

Scientific Coordinator: Rui Quartau

Objectives: The project HAZARDOUS aims to study of the evolution of three fajãs in the Azores Archipelago: the lava fajã of Vila do Corvo on Corvo Island, the Fajã Grande on Flores Island, and the Fajã de Santo Cristo on São Jorge Island. The assessment of their evolution will be based on the following methodologies:

  1. Subaerial domain: analysis of aerial photographs from different periods and a present-day survey using drones.
  2. Submarine domain: multibeam bathymetric survey, seismic reflection profiling, and sediment sampling.
  3. Evolution modeling: after reconstructing the historical evolution, coastal erosion will be simulated using a numerical model to replicate the described changes and predict future trends. For the detrital fajãs, the volume involved in the landslide will also be estimated, along with modeling of potential tsunami generation.

Total Financing: 250 000.00€ (Hydrographic Institute (IH): 74 285.00€)

IH Team: Rui Quartau, André Costa, Aurora Rodrigues, Ruben Santos, Sandra Moreira, Carlos Marques, Cristina Monteiro, Laura Reis

Status: Completed

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2021-03-01 | 2025-02-28

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Partners

  • Faculty of Sciences, University of Lisbon
  • Institute of Geography and Spatial Planning , University of Lisbon
  • Department of Oceanography and Fisheries, University of the Azores
  • Department of Biology, University of the Azores
  • Regional Director of Sea Affairs (DRAM) of the Government of the Azores
  • University of Manchester (United Kingdom)
  • South China Sea Institute of Oceanology (China)
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2025-09-05