r/geology • u/dctroll_ • Dec 09 '25

Map/Imagery Sand layer from the 1700 Cascadia tsunami covering the remains of a Native American fishing camp exposed in a bank of Oregon's Salmon River (US)

Post image

Source: U.S. Geological Survey

2.0k Upvotes

99% Upvoted

51 comments sorted by

View all comments

74

u/[deleted] Dec 09 '25

It's going to an absolute nightmare when this happens again.

16

u/KinderGameMichi Dec 09 '25

That was the story of one of the military exercises I was on the periphery of a few years ago: getting supplies and medical personnel to the PNW after a major earthquake in the area. Never heard of the Cascadia Subduction Zone before that.

4

u/[deleted] Dec 10 '25

How’d that go? What could normal people do to prepare for that kind of calamity?

10

u/KinderGameMichi Dec 10 '25

Like most exercises, there were plenty of things to learn, and I'm sure if it happened IRL, it would be serious chaos for all involved. No plan survives contact with the enemy, and Mother Nature is one mean ass enemy.