1720s natural disasters

thumb|280px|Hvannadalshnúkur, the highest peak of Öræfajökull. Öræfajökull (; 'Öræfi glacier' or 'wasteland glacier') is an ice-covered volcano in south-east Iceland. The largest active volcano and the highest peak in Iceland at , it lies within the Vatnajökull National Park and is covered by part of the glacier.