What is "dyngjujokull"

Dyngjujökull (, shield volcano glacier) is an outlet glacier of the Vatnajökull glacier in Suður-Þingeyjarsýsla, Northeastern Region, Iceland. The glacier is in the Icelandic Highlands and is situated between Bárðarbunga, Holuhraun and Kverkfjöll. Meltwater from the glacier flows into Jökulsá á Fjöllum, the second longest river in Iceland.

Depressions discovered by scientists, on 6 September 2014, have prompted speculation that eruptions may be occurring below the surface of the glacier. This is associated with seismic activity at the Bardarbunga caldera, a large volcanic structure located beneath the glacier.