Nosy-Be volcan
Mise à jour: 8 août. 2022 02:02 GMT - Refresh
Cinder cones 214 m / 702 ft
Madagascar, -13.32°S / 48.48°E
Condition actuelle: normal / en sommeil (1 sur 5)
Madagascar, -13.32°S / 48.48°E
Condition actuelle: normal / en sommeil (1 sur 5)
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Eruptions du volcan Nosy-Be: unknown, no recent eruptions
Derniers séismes proches: No recent earthquakes
Introduction
Nosy-Be island off the NW coast of Madagascar contains very recent basaltic lava flows from well-preserved cinder cones. Many large crater lakes are found in the central part of the island. Nosy-Be volcanics, which are dominantly of low-silica foiditic compositions, overlie Mesozoic limestones and other sedimentary rocks. Two periods of activity occurred at Nosy-Be. Initial eruptions of fluid lava flows from the western side of the massif were followed by the construction of numerous strombolian cinder cones on the western plain. Little is known about the age of the volcanic field, and the only K-Ar dates are Tertiary in age, but the Nosy-Be volcanics were mapped as Recent (Besairie, 1973).---
Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8 | NASA FIRMS
