Aoba volcan

Mise à jour: 12 août. 2022 11:13 GMT - Refresh
Shield volcano 1496 m / 4,908 ft
Vanuatu, -15.4°S / 167.83°E
Condition actuelle: Activité petite ou avertissement éruption imminente (3 sur 5)
Last update: 1 juin 2022 (Smithsonian / USGS Weekly Volcanic Activity Report)

Aoba, also known as Ambae, is a massive 2500 cu km basaltic shield volcano that is the most voluminous volcano of the New Hebrides archipelago.

Montrer carte interactive
Style éruptif tipique: unspecified
Eruptions du volcan Aoba: 2017, 2011, 2005
Derniers séismes proches: No recent earthquakes

Introduction

A pronounced NE-SW-trending rift zone dotted with scoria cones gives the 16 x 38 km island an elongated form. A broad pyroclastic cone containing three crater lakes is located at the summit of the Hawaiian-style shield volcano within the youngest of at least two nested calderas, the largest of which is 6 km in diameter. Post-caldera explosive eruptions formed the summit craters of Lake Voui (also spelled Vui) and Lake Manaro Ngoru about 360 years ago. A tuff cone was constructed within Lake Voui about 60 years later. The latest known flank eruption, about 300 years ago, destroyed the population of the Nduindui area near the western coast.
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Smithsonian / GVP volcano information


See also: Sentinel hub | Landsat 8 | NASA FIRMS
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