Why is iceland so volcanically active . It sits on the mid atlantic ridge, the boundary between the eurasian and the North American tectonic plate. Theyre slowly pulling apart from each other, but iceland is also above a geological hotspot deep inside the earth, where plumes of hot material can well upwards. The last eruptions were in the 1200s, lasting for decades, but then nothing for 800 years, until five eruptions that started in march 2021. So, why was there such a Big Gap . 0ver geological time, the Tectonic Plates are pulling it apart at about the speed your Finger Nails grow, so a few centimetres every year. But they dont seem to smoothly pull apart, they go through pulses of higher activity, and this is likely what were seeing right now. In 2010, in the south of the country, another eruption generated a giant ash cloud
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