eruption: The large explosive basaltic eruption in 1477 CE took place on a ~
65 km long volcanic
fissure on the southwestern part of the Veiðivötn fissure swarm where ground water level is high, and deposited
about 10 km3 of tephra on land affecting
50% of the country (Figures 4 and 5b). Heavy proximal tephra fall
clogged water ways and volcanic craters dammed river Tungnaá resulting
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