The 1755 earthquake in the Algarve (South of Portugal): what would happen nowadays?
International audience The 1755 Lisbon earthquake, which reached a magnitude of 8.5, remains the most powerful and destructive to hit Europe so far. Within minutes, many lives were lost, populations displaced, livelihoods, homes and infrastructures were destroyed. Although frequently associated to t...
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ftinsu:oai:HAL:hal-00297045v1 2023-11-12T04:22:47+01:00 The 1755 earthquake in the Algarve (South of Portugal): what would happen nowadays? Tedim Pedrosa, F. Gonçalves, J. Faculty of Arts of University of Porto 2008-01-02 https://hal.science/hal-00297045 https://hal.science/hal-00297045/document https://hal.science/hal-00297045/file/adgeo-14-59-2008.pdf en eng HAL CCSD European Geosciences Union hal-00297045 https://hal.science/hal-00297045 https://hal.science/hal-00297045/document https://hal.science/hal-00297045/file/adgeo-14-59-2008.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7340 EISSN: 1680-7359 Advances in Geosciences https://hal.science/hal-00297045 Advances in Geosciences, 2008, 14, pp.59-63 [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2008 ftinsu 2023-10-25T16:28:53Z International audience The 1755 Lisbon earthquake, which reached a magnitude of 8.5, remains the most powerful and destructive to hit Europe so far. Within minutes, many lives were lost, populations displaced, livelihoods, homes and infrastructures were destroyed. Although frequently associated to the city of Lisbon, one of the most important European cities at the time, this earthquake caused similar damage and casualties, if not greater, in the southwest of the Algarve, where the seismic intensity was estimated at IX-X Mercalli Intensity Scale. Some time later a tsunami increased the number of victims and the amount of damage. In some locations the tsunami caused greater destruction than the earthquake itself. The tsunami hit both coasts of the North Atlantic; however, the more destructive damage occurred in the Portuguese coast, south from Lisbon, in the Gulf of Cadiz and in the Moroccan coast. The downtown of Lisbon was flooded by waves that reached a height of 6 m. The water flooded an area with an extension of around 250 m from the coast. In the Southwest part of Algarve the waves reached a height between 10 and 15 m and the flooded area was much larger. Through the analysis of recent research works on the assessment of the 1755 tsunami parameters and the interpretation of the more reliable historical documents, it is our intention to analyse the destructive power of the tsunami in the Algarve and delimit the flooded area. Using simple techniques of simulation it is our intention to assess the impacts nowadays of the occurrence of a tsunami similar to the one that hit the Algarve in 1755, which would probably affect a greater number of people, buildings and infrastructures. This assessment is an important instrument not only in terms of disaster preparedness but also for the integration of risk mitigation measures in land use planning. Article in Journal/Newspaper North Atlantic Institut national des sciences de l'Univers: HAL-INSU |
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Institut national des sciences de l'Univers: HAL-INSU |
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language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
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[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Tedim Pedrosa, F. Gonçalves, J. The 1755 earthquake in the Algarve (South of Portugal): what would happen nowadays? |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience The 1755 Lisbon earthquake, which reached a magnitude of 8.5, remains the most powerful and destructive to hit Europe so far. Within minutes, many lives were lost, populations displaced, livelihoods, homes and infrastructures were destroyed. Although frequently associated to the city of Lisbon, one of the most important European cities at the time, this earthquake caused similar damage and casualties, if not greater, in the southwest of the Algarve, where the seismic intensity was estimated at IX-X Mercalli Intensity Scale. Some time later a tsunami increased the number of victims and the amount of damage. In some locations the tsunami caused greater destruction than the earthquake itself. The tsunami hit both coasts of the North Atlantic; however, the more destructive damage occurred in the Portuguese coast, south from Lisbon, in the Gulf of Cadiz and in the Moroccan coast. The downtown of Lisbon was flooded by waves that reached a height of 6 m. The water flooded an area with an extension of around 250 m from the coast. In the Southwest part of Algarve the waves reached a height between 10 and 15 m and the flooded area was much larger. Through the analysis of recent research works on the assessment of the 1755 tsunami parameters and the interpretation of the more reliable historical documents, it is our intention to analyse the destructive power of the tsunami in the Algarve and delimit the flooded area. Using simple techniques of simulation it is our intention to assess the impacts nowadays of the occurrence of a tsunami similar to the one that hit the Algarve in 1755, which would probably affect a greater number of people, buildings and infrastructures. This assessment is an important instrument not only in terms of disaster preparedness but also for the integration of risk mitigation measures in land use planning. |
author2 |
Faculty of Arts of University of Porto |
format |
Article in Journal/Newspaper |
author |
Tedim Pedrosa, F. Gonçalves, J. |
author_facet |
Tedim Pedrosa, F. Gonçalves, J. |
author_sort |
Tedim Pedrosa, F. |
title |
The 1755 earthquake in the Algarve (South of Portugal): what would happen nowadays? |
title_short |
The 1755 earthquake in the Algarve (South of Portugal): what would happen nowadays? |
title_full |
The 1755 earthquake in the Algarve (South of Portugal): what would happen nowadays? |
title_fullStr |
The 1755 earthquake in the Algarve (South of Portugal): what would happen nowadays? |
title_full_unstemmed |
The 1755 earthquake in the Algarve (South of Portugal): what would happen nowadays? |
title_sort |
1755 earthquake in the algarve (south of portugal): what would happen nowadays? |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.science/hal-00297045 https://hal.science/hal-00297045/document https://hal.science/hal-00297045/file/adgeo-14-59-2008.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 1680-7340 EISSN: 1680-7359 Advances in Geosciences https://hal.science/hal-00297045 Advances in Geosciences, 2008, 14, pp.59-63 |
op_relation |
hal-00297045 https://hal.science/hal-00297045 https://hal.science/hal-00297045/document https://hal.science/hal-00297045/file/adgeo-14-59-2008.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782337717170864128 |