Graciosa volcan
Mise à jour: 2 févr.. 2023 06:36 GMT -
stratovolcan 402 m
Açores (Le Portugal), 39.02°N / -27.97°W
Condition actuelle: normal / en sommeil (1 sur 5)
Açores (Le Portugal), 39.02°N / -27.97°W
Condition actuelle: normal / en sommeil (1 sur 5)
The SE end of Graciosa, the northernmost of the central Azorean islands, contains a small 0.9 x 1.6 km caldera with active fumaroles.
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Eruptions du volcan Graciosa: 2000-4000 years ago
Derniers séismes proches
Introduction
The 402-m-high SE caldera rim is the high point of the small 4 x 8 km island. The caldera has been the source of eruptions producing significant tephra falls, pyroclastic flows, lahars, and lava flows. An important fumarole field is located in a volcanic cave inside the caldera, and a submarine fumarole occurs off the NW coast of Graciosa. Scoria cones erupted along several widely spaced NE-SW-trending fissures fed a youthful lava field that forms the NW end of the island. The most recent eruption from Pico Tomao, NW of the caldera, produced a lava flow that reached the eastern coast NW of the village of Praia.-------------------------------------
Source: Smithsonian GVP
Graciosa Photos
View over the island of La Graciosa, located north of Lanzarote, Canary islands (Photo: Janka)
The island La Graciosa near to Lanzarote. (Photo: Tobias Schorr)
Craters on the island La Graciosa. (Photo: Tobias Schorr)
View from the Mirador de Rio towards the island of La Graciosa. (Photo: Tobias Schorr)
See also: Sentinel hub | Landsat 8 | NASA FIRMS
