Mýrdalsjökull, Iceland

Mýrdalsjökull is a glacier in the south of Iceland. It is situated to the north of Vík í Mýrdal and to the east of the smaller glacier Eyjafjallajökull. The icecap of the glacier covers an active volcano called Katla. The caldera of the volcano has a diameter of 10 km and the volcano erupts usually every 40–80 years. As the last eruption took place in 1918, scientists are monitoring the volcano very carefully as they believe an eruption of Katla is on the cards, particularly after the eruption of Eyjafjallajökull began in April 2010.