Bardarbunga caldera could subside by hundreds of meters, say two of Iceland´s top geophysicists.
In a short article published yesterday, geophysicists Magnus Tumi Gudmundsson and Pall Einarsson at the University of Iceland´s Institute of Earth Sciences point out three possible scenarios, and what the consequences would be in each case.
The current subsidence is already the largest such event observed in Iceland. The last known example of a caldera collapse happened in the Askja volcano system in 1875, when a large explosive eruption occurred there, causing widespread ashfall in eastern Iceland and reached Scandinavia. That caldera collapse created a lake in Askja, the deepest lake in Iceland.
See the three possible scenarios and their aftermath here:
Thanks to Twawki for this link