Bardabunga Volcano Eruption
It erupted last August 2014 and is continuing up to this day. This unique phenomenon remained unexplained. There are three ways which sets this eruption apart from the rest: the largeness of its lava field, the amount of sinking in its crater and the hazardous sulphur dioxide it emits. Bardabunga caldera sank to 184 feet because of this eruption.