Portugal · Stratovolcano
Graciosa Island
Graciosa
- Type
- Stratovolcano
- Elevation
- 402m
- Last eruption
- -1950
- Type
- Stratovolcano
- Country
- Portugal
- Region
- Atlantic Ocean / Azores-Terceira Rift Volcanic Province
- Elevation
- 402m
- Coordinates
- 39.020, -27.970
- Last eruption
- -1950
- Tectonic setting
- Rift zone / Oceanic crust (< 15 km)
- Landform
- Composite
- Major rock type
- Basalt / Picro-basalt
Geological summary
The SE end of Graciosa, the northernmost of the central Azorean islands, contains a 0.9 x 1.6 km caldera with active fumaroles.
Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →
From Wikipedia
Graciosa Island, also referred to as the White Island, is a volcanic island in the Atlantic Ocean. It is the northernmost of the Central Group of islands in the Azores archipelago. The ovular Portuguese island has an area of 60.65 square kilometres, a length of 10 kilometres and a width of 7 kilometres. Its landscape is dominated by a 1.6-kilometre-wide (1.0-mile) central caldera located in the southeast.
Wikipedia · CC BY-SA · Read full article →
Eruption history
1 recordedGlossaryRecord summary
- Confirmed eruptions
- 1
- Uncertain eruptions
- 0
- Span of confirmed record
- 1950 BCE (±1400 yrs) – 1950 BCE
- Largest confirmed eruption
- No VEI recorded
- Confirmed eruptions since 1900
- 0
Detailed timeline
- 1950 BCE (±1400 yrs)VEI ?Geological estimate1950 BCE – end unknownSan Tamao
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.