Flores

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  • Portugal
  • Azores
  • Stratovolcano(es)
  • 950 BCE
  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 39.462°N
  • 31.216°W

  • 914 m
    2998 ft

  • 382001
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

There are no activity reports for Flores.



 Available Weekly Reports

There are no Weekly Reports available for Flores.

Summary of eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
0950 BCE ± 100 years Unknown Confirmed   Radiocarbon (uncorrected) Caldeira Comprida
1200 BCE ± 100 years Unknown Confirmed   Radiocarbon (uncorrected) Caldeira Funda de Lajes

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Azevedo J M M, Ferreira M R P, 2006. The volcanotectonic evolution of Flores Island, Azores (Portugal). J Volc Geotherm Res, 156: 90-102.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Mitchell-Thome R C, 1976. Geology of the Middle Atlantic Islands. Berlin: Gebruder Borntraeger, 382 p.

Morisseau M, Traineau H, 1985. Mise en evidence d'une activite hydromagmatique Holocene sur l'Ile de Flores (Acores). CR Acad Sci Paris, 301: 1309-1314.

Zbyszewski G, Candido de Medeiros A, Veiga Ferreira O da, Torre de Assuncao C, 1968. Geologic map of Ihla das Flores (Azores). Servicos Geologicos Portugal, 1:25,000 scale map with 31 p text (in Portuguese).

Flores Island and Corvo Island to its north are located far west of the rest of the Azores islands and are the only two Azorean volcanoes lying west of the Mid-Atlantic Ridge. Growth of an initially submarine volcano included Pleistocene explosive activity associated with formation of small calderas. The 10 x 15 km island of Flores is dotted by numerous pyroclastic cones and craters. Following a long period of quiescence beginning about 200,000 years ago, several young phreatomagmatic craters and associated lava flows were erupted during the Holocene, including two about 3000 years ago. The Caldeira Funda de Lajes tuff ring formed about 3150 years ago, accompanied by a lava flow that traveled to the SE, reaching the coast at Lajes. The Caldeira Comprida tuff ring in Caldeira Seca, west-central Flores, erupted about 2900 years ago. It produced a lava flow that traveled NW-ward and reached the coast at Faja Grande.