Admittedly he'd hoped for a more reassuring answer from the former sailor marine. Something along the lines of that being a natural phenomena due to algae in the water or somesuch. He knows nothing about bodies of water and couldn't tell the difference between a shark and a whale let alone how tsunamis work.

"We should, in case we need to evacuate to higher ground." Maybe all the way to the mountains. They definitely hadn't planned for that - all their food and supplies are around the Invincible and the village.

"And if the World Eater is lying in wait beneath the surface, we should find out and plan some sort of second attack."

Or worse a retreat.