[Fiji Hill]

The last “big one,” which ruptured along the fault’s entire length, struck in 1700, and recent research suggests that the return interval for such magnitude-9 megathrust events is roughly every 400 to 600 years.

That one apparently generated a huge tidal wave that hit Japan in January, 1700.

[JimSEA]

You can go to several of the rivers that empty to the ocean and go upstream a couple miles and you can see evidence of the 1700 tsunami if you look closely. I wouldn’t want to be at the beach when the next one comes.