The launch of a new GVP website is scheduled for Monday, May 20, 2013.
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Country: | Portugal | |
| Subregion Name: | Azores | ||
| Volcano Number: | 1802-04= | ||
| Volcano Type: | Stratovolcano | ||
| Volcano Status: | Holocene | ||
| Last Known Eruption: | Unknown | ||
| Summit Elevation: | 402 m | 1,319 feet | |
| Latitude: | 39.02°N | 39°1'0"N | |
| Longitude: | 27.97°W | 27°58'0"W | |
| 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. 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. | |||
