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| Volcanoes of Cape Verde | |
|---|---|
| Name | Cape Verde Volcanic Province |
| Photo caption | Pico do Fogo eruption cone, Fogo |
| Location | Cape Verde |
| Type | Shield volcano, Stratovolcano |
| Last eruption | 2014–2015 (Fogo) |
Volcanoes of Cape Verde are the volcanic constructs of the Cape Verde archipelago off the coast of West Africa. The islands host an array of edifices including shield volcanoes, stratovolcanoes, lava fields and submarine cones formed by hotspot-related magmatism. Their volcanic landscapes shape the islands of Santiago, Fogo, Santo Antão, São Vicente, São Nicolau, Sal, Boa Vista, and Brava and influence maritime navigation, agriculture, settlement patterns, and tourism.
The Cape Verde volcanic province is part of Atlantic hotspot theory linking islands to mantle plumes studied alongside Hawaii, Iceland, Canary Islands, Azores and Sao Tome and Principe. Key actors in research include institutions such as the Universidade de Cabo Verde, Institute of Earth Sciences, University of Lisbon, CNRS, ETH Zurich, and University of Oxford. Noted field campaigns have involved vessels like RRS James Cook and research programs such as OBSEA and projects by the International Association of Volcanology and Chemistry of the Earth's Interior.
Cape Verde lies near the eastern margin of the Central Atlantic and the African Plate with proximity to the African Rift and East African Rift influences. The province is interpreted as a hotspot track over the stationary mantle plume model proposed by J. Tuzo Wilson and contrasted with plate-driven models by W. Jason Morgan. Basement lithologies include basaltic lavas, phonolite and trachyte suites resembling those in Canary Islands and Madeira. Geochemical studies reference isotopic systems such as Sr-Nd-Pb isotopes and use techniques from laboratories at Geological Survey of Portugal, USGS, Lamont–Doherty Earth Observatory and Scripps Institution of Oceanography.
Major centers include Pico do Fogo on Fogo—a stratovolcano with a large caldera—Pico do Fogo (Fogo) being the most active, plus the complex shield systems of Santo Antão and São Nicolau. Other systems are Monte Verde on São Vicente, Monte Cara near Mindelo, Morro de Areia on Boa Vista, and pseudocraters on Sal. Submarine edifices surround the archipelago and are monitored due to links with the Cap-Vert seafloor morphology and the Mann-Elger faulting inferred from seismic swarms recorded by networks including Instituto Português do Mar e da Atmosfera and Instituto Nacional de Desenvolvimento das Pescas.
Documented eruptions include historical events in 1680, 1790s, 1847, 1951 and the well-studied 1995–1996 and 2014–2015 eruptions at Fogo. Eyewitness reports come from colonial records in Portuguese Empire archives and logs by mariners from Royal Navy squadrons and merchant ships. Paleovolcanology combines radiometric dating techniques such as K–Ar dating, Ar–Ar dating and U–Pb zircon analyses performed at centers like Max Planck Institute for Chemistry and ETH Zurich to reconstruct Pleistocene and Holocene activity. Seismicity recorded by arrays deployed with assistance from IRIS and Incorporated Research Institutions for Seismology reveals intraplatform deformation and magma intrusion episodes analogous to precursors documented at Mount Etna, Stromboli, and Sakurajima.
Hazards include lava flows, ashfall, pyroclastic density currents, landslides and secondary hazards like flash floods and tsunamis affecting ports such as Mindelo and settlements like São Filipe and Praia. Monitoring networks employ seismic stations, GPS from Galileo and GLONASS constellations, satellite remote sensing from Sentinel and Landsat missions, InSAR analyses by ESA teams, gas monitoring referencing SO2, CO2 fluxes, and thermal anomaly detection used by agencies including NOAA and NASA Jet Propulsion Laboratory. Civil protection responses have involved the Protecção Civil de Cabo Verde and coordination with the United Nations Office for the Coordination of Humanitarian Affairs during evacuations.
Volcanism has driven soil fertility on islands such as Santiago and Fogo, shaping agriculture of crops like maize and coffee and influencing demographic patterns in towns including Assomada and Mosteiros. Historic eruptions displaced populations and affected infrastructure—airports like Nelson Mandela International Airport and fisheries based at Tarrafal have been interrupted. Cultural landscapes reflect volcanic heritage in music from Cape Verdean Creole communities and literature by authors such as Germano Almeida and Arménio Vieira that reference volcanic topography.
Ongoing research is coordinated through partnerships among Universidade de Cabo Verde, University of Coimbra, University of Lisbon, University of Cape Town, Imperial College London and international consortia funded by bodies like the European Research Council and National Science Foundation. Conservation initiatives aim to protect endemic flora and fauna affected by eruptions, involving organizations such as IPCC', BirdLife International, IUCN and local NGOs. Protected areas include parts of Fogo Natural Park and proposals link volcanic geodiversity to sustainable tourism promoted by the Ministry of Tourism (Cape Verde) and UNESCO biosphere candidacies examined with support from the World Heritage Centre.