I hardly need to point out what this means.
Earthquake & tsunami cause major flooding in Greenland
18 June, 2017
The western coast of Greenland has been struck with a 4.0 magnitude earthquake, triggering a tsunami that swept away several houses in coastal villages. At least four people are feared missing, as a rescue mission in the village hardest hit by waves is under way, local police reports.
Tsunami waves damage some villages on the Greenland coast - 4 people missing, 9 injured (2 serious)
The Google Earth map below shows the steep cliffs in the surrounding sounds. Additionally the village of Nuugaatsiaq is located on a plateau with steep cliffs in the background.