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Sete Cidades volcanostratovolcano, caldera, pyroclastic cones 856 m
Azores, Portugal, 37.86°N / -25.79°W Current status: dormant (1 out of 5) [hide map] [enlarge map]
Typical eruption style: Explosive
Sete Cidades volcano eruptions: 1500 AD Sete Cidades Volcano Photos Last earthquakes nearby:
Background:The steep-walled, 500-m-deep caldera was formed about 22,000 years ago, and at least 22 post-caldera eruptions have occurred. A large group of Pleistocene post-caldera trachytic lava domes, lava flows, and pyroclastic-flow deposits is found on the western-to-northern flanks. A nearly circular ring of six Holocene pyroclastic cones occupies the caldera floor. These have been the source of a dozen trachytic pumice-fall deposits erupted during the past 5000 years. Sete Cidades is one of the most active Azorean volcanoes. Historical eruptions date back to the 15th century and have occurred from within the caldera and from submarine vents off the west coast.------------------- Source: Smithsonian GVP Sete Cidades Photos:
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