Quickclay Landslides; Or, Whatever You Do, Never, Ever Add A New Wing To Your Existing Barn!

I was reading this interesting blog, Olelog, and was startled to read about this weird, science-fiction-like earth conundrum I had never heard of before! The Rissa Quickclay Landslide of 1978!

Beware marine clay sediments that experience isostatic rebound after glacial epochs! Beware!