Magma is collecting in Öræfajökull volcano at a depth of just over five kilometres deep. No timetable has been set for an eruption, but scientists believe measurements indicate the volcano is preparing to erupt.
The area around Öræfajökull glacier continues to show increased activity as the largest earthquake detected in the area, M3,6 on the Richter scale, occurred there this morning.
Scientists are planning a flight over Öræfajökull volcano in southeast Iceland in order to take another measurement of the caldera that formed during an earthquake in the fall.
Footage from the NASA satellite Landsat 8 shows the widening of the cauldron, and that the crevasses are becoming more clear, of Öræfajökull volcano.
Geophysicist Magnús Tumi Guðmundsson says there is no evidence of an eruption in Öræfajökull glacier.
Recent satellite images reveal that a new, one-kilometre wide caldera has emerged in Öræfajökull glacier, South Iceland, following increased geothermal activity in the area.