Terceira Volcano

Updated: 16 mayo 2024 05:12 GMT - refresh

stratovolcano, caldera, lavadomes 1023 m
Azores (Portugal), 38.74°N / -27.32°W
Current status: normal or dormant (1 out of 5)

Santa Barbara Terceira volcano (image: Eva Kubelková)

Terceira Island contains four stratovolcanoes constructed along a prominent ESE-WNW-trending fissure zone that cuts across the island.

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Typical eruption style: Explosive
Erupciones del volcán Terceira: holocene

Latest nearby earthquakes

Fecha / Hora	Revista / Prof.	Distancia / Ubicación
13 may 22:39 (Azores)	2.5 0 km	1.1 km al suroeste	Azores Islands, Portugal 1 report	Más
sábado, 11 mayo 2024 GMT (2 sismos)
10 may 23:04 (Azores)	2.5 2.9 km	3.4 km al noroeste	Azores Islands, Portugal	Más
10 may 23:01 (Azores)	2.3 2.4 km		Azores Islands, Portugal	Más
martes, 7 mayo 2024 GMT (1 sismo)
7 may 07:08 (Azores)	2.4 6.4 km		Azores Islands, Portugal	Más
viernes, 3 mayo 2024 GMT (1 sismo)
3 may 06:50 (Azores)	2.6 0 km	1.5 km al noroeste	Azores Islands, Portugal	Más
jueves, 2 mayo 2024 GMT (1 sismo)
2 may 13:19 (Azores)	2.4 2.4 km		Azores Islands, Portugal	Más

View recent quakes

Background

Historically active Santa Barbara volcano at the western end of the island is truncated by two calderas. The youngest of these formed about 15,000 years ago. Comenditic lava domes fill and surround the caldera. Pico Alto lies north of the fissure zone in the north-central part of the island and contains a Pleistocene caldera largely filled by lava domes and lava flows. Guilherme Moniz caldera lies along the fissure zone immediately to the south, and 7-km-wide Cinquio Picos caldera at the SE end of the island is the largest in the Azores. Historical eruptions have occurred from Pico Alto, the fissure zone between Pico Alto and Santa Barbara, and from submarine vents west of Santa Barbara. Most Holocene eruptions have produced basaltic-to-rhyolitic lava flows from the fissure zone transecting the island.