The article says it’s too deep to cause a tsunami, at least where the quakes are now. If seismic activity starts moving towards land and a big quake is close enough, a shelf-collapse could cause one.

That would be scary, seeing as I believe the largest tsunami ever was created via a similar mechanism.

Edit: not the largest, but large. See: https://en.m.wikipedia.org/wiki/Storegga_Slide