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Terceira Volcano

Updated: Apr 23, 2024 07:35 GMT -
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)
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.

[smaller] [larger]
Typical eruption style: Explosive
Terceira volcano eruptions: holocene

Latest nearby earthquakes

TimeMag. / DepthDistance / Location
Apr 14, 10:56 pm (Azores)
3.6

0 km
9.4 km (5.8 mi) to the E Azores Islands, Portugal 64 reportsInfo
Apr 14, 12:00 pm (Azores)
3.6

0 km
1.4 km (0.9 mi) to the E Azores Islands, Portugal 21 reportsInfo
Apr 14, 02:28 am (Azores)
2.9

3.9 km
7.5 km (4.7 mi) to the W Azores Islands, Portugal
Info
Saturday, April 13, 2024 GMT (1 quake)
Apr 13, 08:21 pm (Azores)
3.0

0.9 km
1.1 km (0.7 mi) to the SW Azores Islands, Portugal 8 reportsInfo
Wednesday, April 10, 2024 GMT (1 quake)
Apr 10, 08:41 am (Azores)
2.8

0 km
1.4 km (0.9 mi) to the N Azores Islands, Portugal 3 reportsInfo
Tuesday, April 9, 2024 GMT (1 quake)
Apr 9, 11:58 am (Azores)
2.7

0 km
1.3 km (0.8 mi) to the NW Azores Islands, Portugal
Info

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.

Terceira Volcano Photos

Latest satellite images

Terceira satellite image sat1Terceira satellite image sat2

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