Scientists from the Swiss Institute of Technology discovered a new phenomenon called "ice-quakes" that influences river movement in Greenland. They clarified that these quakes arise from the collision of two ice plates, which explains the lateral movement reminiscent of slabs of ice in their path to the sea.
Thanks to modern technology, the researchers managed to solve this mystery. They used a technique that involved the deployment of an optical cable into a borehole up to 2.7 kilometers deep in northeastern Greenland. The experiment was conducted near the largest glacier on the island - "Greenland Stream", which is a vital channel for the transfer of ice from the interior parts of the glacier into the Atlantic Ocean.
**This quote:** "Ice-quakes were unknown until now," noted the researchers.
