In July 2010, researchers Timothy James (@arctic_mit) and Nick Selmes were installing instruments on the south shore of Helheim Fjord in Greenland when they heard the most unbelievable sound. This is what unfolded before their eyes.
Please use (with appropriate acknowledgement) for education and research purposes.
**An important footnote: the ice above sea level in this calving event (about 0.25 cubic km) represents a contribution to sea level because the front of the glacier is not floating. If the glacier front was floating, this ice would have already displaced its mass in the water and the calving event would not be a contribution to sea level.