A landslide taking parts of a glacier into a Greenland fjord has been identified as the cause of a nine-day tsunami last year, scientists say.
Seismologists had been baffled by seismic activity signals across the globe in September 2023.
The signals have now been traced to the reverberations of a tsunami caused by the landslide in eastern Greenland, according to an article in the journal Science.
The authors say a “rockslide “ into the Dickson fjord on September 16th, 2024, generated a 200m wave.
That wave was then “trapped” in the narrow fjord - moving back and forth for nine days, generating the vibrations which were picked up by seismic sensors.
The remote part of Greenland where it occurred is on the cruise ship route, but no vessels were in the area at the time.
Scientists say the risk of such events is increasing due to climate change.
The full article is in the journal Science here