Ascension

Ascension (Saint Helena) is a stratovolcano. It rises to 822 m above sea level. The GVP records 3 confirmed eruptions in the Holocene, the latest in 1508.

Elevation: 822 m
Last eruption: 1508
Confirmed eruptions: 3
Max VEI: 0
Country: Saint Helena
Location: 7.95° S, 14.37° W
Region (GVP): Central Mid-Atlantic Rift Volcanic Province
GVP type: Stratovolcano
Tectonic setting: Rift zone / Oceanic crust (< 15 km)
Main rock type: Basalt / Picro-Basalt

Show on the timeline GVP entry ↗

Other volcanoes and strong earthquakes within 300 km

Eruption history

VEI – Volcanic Explosivity Index: 0 = lava outpouring, 4 = like Eyjafjallajökull 2010, 6 = like Pinatubo 1991, 7 = like Tambora 1815. The scale is logarithmic – each step is about 10 times more material.

Start	End	Vent and dating
1508 ± 180 years	—	South Sisters lava flow · Isotopic: Ar/Ar
1468 ± 120 years	—	Comfortless Cove lava flow · Isotopic: Ar/Ar
378 ± 370 years	—	Davidson lava flow · Isotopic: Ar/Ar

Data: Global Volcanism Program, Smithsonian Institution (#385050)