 Grímsvötn is one of Iceland's most active volcanoes, and this eruption was much more powerful than the 2010 Eyjafjallajökull activity, with ash and lava hurled into the atmosphere, creating a large cloud.The highest elevation for Iceland is listed as 2,110 m (6,923 ft) at Hvannadalshnúkur (64°00′N 16°39′W).The climate of Iceland's coast is subarctic.