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Terceira volcano

Updated: Nov 29, 2022 02:02 GMT -
stratovolcano, caldera, lavadomes 1023 m
Azores (Portugal), 38.74°N / -27.32°W
Current status: restless (2 out of 5)

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
Terceira volcano eruptions: holocene

Latest nearby earthquakes

TimeMag. / DepthDistance/Location
Wednesday, November 16, 2022 GMT (2 quakes)
Nov 16, 2022 7:17 am (GMT -1) (Nov 16, 2022 08:17 GMT)
5 km (3.1 mi)
North Atlantic Ocean, 5.7 km northwest of Santa Barbara, Portugal
Nov 16, 2022 7:11 am (GMT -1) (Nov 16, 2022 08:11 GMT)

3 km
3.9 km (2.4 mi)
17 km northwest of Angra do Heroismo, Azores, Portugal
Tuesday, November 15, 2022 GMT (1 quake)
Nov 15, 2022 3:59 am (GMT -1) (Nov 15, 2022 04:59 GMT)

5 km
1.6 km (1 mi)
14 km northwest of Angra do Heroismo, Azores, Portugal


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.

Terceira Photos

See also: Sentinel hub | Landsat 8 | NASA FIRMS

Terceira volcano tours

Azores (Portugal)
Green Volcanoes
15 days geo and photo tour to the Azores Islands
15 days / 14 nights - Custom (variable)
Price 2795 €
no scheduled dates at present

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