Sete Cidades вулкан

stratovolcano, caldera, pyroclastic cones 856 m
Azoren, Portugal, 37.86°N / -25.79°W
Текущее состояние: normal or dormant (1 из 5)
Last update: 22 авг 2019

Sete Cidades volcano at the western end of Sao Miguel Island contains a 5-km-wide summit caldera, occupied by two caldera lakes, that is one of the scenic highlights of the Azores.

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Типичный извержения стиль: ВЗРЫВООПАСНЫЕ
Sete Cidades Вулкан-извержения: 1500 AD

Нет недавних землетрясений
ВремяМагнитуда / ГлубинаРасстояние/Местоположение

Справочная информация

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.
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Source: Smithsonian GVP

Sete Cidades Фото

san_miguel_sete_cidades_g01.jpg (c)
san_miguel_sete_cidades_g01.jpg (c)
 



See also: Sentinel hub | Landsat 8 | NASA FIRMS
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