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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)

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.

Montrer carte interactive
Style éruptif tipique: Explosive
Eruptions du volcan Graciosa: 2000-4000 years ago

Derniers séismes proches

HeureMag. / ProfondeurDistance/Lieu
vendredi, 27 janvier 2023 GMT (1 séisme)
27 janv. 2023 00:20 (GMT -1) (27 janv.. 2023 01:20 GMT)
2.0

5 km
40 km (25 mi)
São Jorge, 3.1 km au nord de Velas, Azores, Portugal

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.
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Source: Smithsonian GVP

Graciosa Photos




See also: Sentinel hub | Landsat 8 | NASA FIRMS

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