Question: how big was eyjafjallajokull volcano eruption?
Answer: Situated to the north of Skógar and to the west of the larger ice cap Mýrdalsjökull, Eyjafjallajökull covers the caldera of a volcano 1,666 m (5,466 ft) high, which has erupted relatively frequently since the last ice age. The most recent major eruptions occurred in 920, 1612, and from 1821 to 1823.