6.3 was the second one 3 km away from the first one https://earthquake.usgs.gov/earthquakes/eventpage/us10008mgu#executive
Four people are feared dead after tsunami waves struck the coast of Greenland on Saturday night.
A 4.1-magnitude earthquake, which struck 28 kilometres north of the northwest village of Nuugaatsiaq, is believed to have partially triggered the tsunami, according to a report from Kalaallit Nunaata Radioa, the national broadcaster in Greenland.
The local newspaper, Sermitsiaq, reported that the four feared dead were inside their home in Nuugaatsiaq when waves struck and swept the structure into the ocean.
KNR says Nuugaatsiaq has been evacuated, adding the waves also struck the communities of Uummannaq and Illorsuit. A helicopter and boats have been deployed to assist in the search-and-rescue effort.
Residents took to social media to post videos of the flooding.
The BBC is reporting a total of 39 people have been evacuated from Nuugaatsiaq. A number of injuries have also been reported.