Late

sopka – Stratovolcano, Tonga, Tonga-Kermadec Volcanic Regions

Kde

Tonga, Tonga-Kermadec Volcanic Regions

Typ (GVP)

Stratovolcano

Nadmořská výška

540 m

Tektonické prostředí

Subduction zone / Oceanic crust (< 15 km)

Poslední známá erupce

1854

Poloha

-18,806°, -174,650°

The 6-km-wide circular island of Late, along the Tofua volcanic arc about 55 km WSW of Vavau, contains a 400-m-wide, 150-m-deep summit crater with an ephemeral lake. The largely submerged basaltic andesite to andesitic volcano rises 1,500 m from the sea floor, with its conical summit reaching 540 m above sea level. Cinder cones are found north of the summit crater, west and north of a semicircular plateau 100-150 m below the summit, and on the NW coast. A graben-like structure on the NE flank contains two large pit craters, the lower of which is partially filled by a saltwater lake. Eruptions from the NE-flank craters produced explosive activity and possible lava flows in 1790 and 1854.

Text: Smithsonian Global Volcanism Program.

Údaje o sopce: Smithsonian Global Volcanism Program. Další sopky a průduchy.