Landslide triggers megatsunami in narrow fjord

It was a monster wave that hit a fjord on Greenland's east coast on 16 September 2023. In certain places, the traces of the flooding reached 200 meters high. Researchers led by Angela Carrillo Ponce from the German Research Centre for Geosciences (GFZ) have now evaluated the seismic signals from earthquake measuring stations worldwide and discovered another unusual event: Triggered by the megatsunami, a standing wave sloshed back and forth in the narrow bay of the uninhabited Dickson Fjord for more than a week.