Nazko volcancinder cones 1230 m / 4,035 ft
Canada, 52.9°N / -123.73°W Condition actuelle: en sommeil (1 sur 5)
Style éruptif tipique: Explosive
Eruptions du volcan Nazko: 5220 BC ± 100 years Derniers séismes proches:
Introduction:Nazko Cone, the easternmost and youngest volcano of the Anahim volcanic belt in the Chilcotin-Nechako Plateau was formed in three episodes of activity, the first of which took place during a Pleistocene interglacial stage about 0.34 million years ago. The second stage produced a large hyaloclastite scoria mound erupted beneath the Cordilleran ice sheet during the late Pleistocene. The final activity occurred about 7200 years ago, forming a compound subaerial cinder cone that overtopped the hyaloclastite mound and produced two small lava flows that traveled about 1 km to the west. An airfall tephra blanket extends several km to the north and east of the cone.--- Source: GVP Nazko volcano information |
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