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Graciosa volcano

stratovolcano 402 m
Azores, Portugal, Azores & Madeira, 39.02°N / -27.97°W
Current status: dormant (1 out of 5)
Typical eruption style: Explosive
Graciosa volcano eruptions: 2000-4000 years ago No recent earthquakes
TimeMag. / DepthDistanceLocation
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.

Background:

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

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