Gamkonora volcano, seen here from the NW coast near Gamsungi village, is one of Halmahera's more active volcanoes. The summit crater of Gamkonora is elongated in a N-S direction, with a small crater lake at the north end. The first two historical eruptions, in 1564 or 1565, and in 1693, were the most severe, producing respectively a destructive lava flow that reached the sea, and a tsunami that inundated villages.
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Gamkonora je sopka v severní části indonéského ostrova Halmahera. S výškou 1 635 m je jeho nejvyšší bod. Vrchol vulkánu tvoří skupina kráterů, seřazených v linii severozápad–jihovýchod. Gamkonora je poměrně aktivní, jelikož od 16. století bylo zaznamenáno přibližně tucet, zpravidla menších explozivních erupcí. Největší se odehrála v květnu 1673 a její síla dosahovala VEI 5. Vyvržený objem sopečných produktů činil zhruba jednu miliardu m³ a katastrofu doprovázela ještě vlna tsunami, která zničila pobřežní vesnice. Poslední výbuch proběhl v červenci 2007 a donutil 8 tisíc lidí se evakuovat.
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