Krafla is a volcanic caldera of about 10 km in diameter with a 90 km long fissure zone, in the north of Iceland in the Mývatn region which is situated on the Iceland Hotspot atop the Mid-Atlantic Ridge at the divergent boundary between the North American Plate and the Eurasian Plate. Its highest peak reaches up to 818 m and it is 2 km in depth. There have been 29 reported eruptions in recorded history.