I once camped on a semi secluded beach with a couple of friends. That night we were on the epicenter of an earthquake and also we saw a big red scar looking thing on the sky.

One of my friends acted as sentinel and did not closed his eyes the whole night, he was expecting the sea to recede and come back as a tsunami, gladly nothing happened.

Later, in 2010’s earthquake the sea got out in that very same beach, it wasn’t a full tsunami but videos showed how scary the sea can be.