An earthquake greater than 9.0 happened in 1700 off the coast of Washington State.
It caused massive tsunamis along the coast of what is now Washington State and Oregon. The waves went far inland.
Tsunamis caused by this quake also wreaked havoc in Japan.
Someday, this is going to happen again....not a pleasant thought. (This happens every 400 - 500 years).
Created the Scablands, didn’t it? Not in the 1700s, but over time, or was that a glacial dam bursting...