The Long-Lost Tale of an 18th-Century Tsunami, as Told by Trees | WIRED

https://www.wired.com/story/the-long-lost-tale-of-an-18th-century-tsunami-as-told-by-trees/

There are geographical scars with the trees and rock that we are overdue for an 11…

Wtf is an 11. Most homes are zoned for a 9 unless you are in a tsunami zone.

But 11? This is why I keep an earthquake kit by my door