Graciosa
About Graciosa
The SE end of Graciosa, the northernmost of the central Azorean islands, contains a 0.9 x 1.6 km caldera with active fumaroles. The SE caldera rim is the high point of the 7 x 12 km island. The caldera has been the source of eruptions producing significant tephra falls, pyroclastic flows, lahars, and lava flows. Fumaroles are present in a volcanic cave inside the caldera, and a submarine fumarole occurs off the NW coast. 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 during the mid-to-late Holocene that reached the eastern coast NW of the village of Praia.
Eruption reports
Reports from GDACS and NASA EONET linked to this volcano.
No eruption reports in our records yet. New reports appear here automatically.
Earthquakes nearby, 30 days
Within about 50 km. Swarms of small quakes can sometimes accompany volcanic unrest.
No earthquakes recorded nearby in the last 30 days.