Basalt

As disaster-obsessed scientists go, geologists must be near the top of the list. They deal with time scales spanning billions of years, so a set of catastrophes occurring 10 million years ago is like yesterday. Something in the last century comes close to being, well, now. 

And they see catastrophe all over the place.

Take the roadcut near the Old Moscow Road. It’s a modest pile of crumbling rock, but John Wolff and Rick Conrey can see in its surrounding rock a thick blanket of hot lava inundating southeast Washington.

“It covers an area that goes from here to Spokane to The Dalles, buried at … » More …