
When I was a kid, my mom would measure time for me in units of Sesame Street. During a road trip when I’d inevitably ask, “Are we there yet?” she might answer, we’ll be there in two Sesame Streets. For a kid, two hours can seem like forever.
We imagine the world through the lens of our experience. When you’re six, a day or a month represent a substantial portion of the life you’ve lived so far. When you’re 60, such periods of time are gone before you know it. It’s all about perspective. Things that happen too quickly or slowly for us to see tend to escape our notice. As a result, the vibration of an atom or the formation of a Grand Canyon inspire our awe and wonder, because they exist outside our normal realm of attention.
A few weeks ago, geologic time made itself visible to me and my community when a massive section of the mountain we call home slid down the hill in an epic display of nature’s brute force. The mudslide happened on Sunday, May 25 near Collbran, Colorado, trapping, and presumably killing, three men. Wes Hawkins, Danny Nichols and his father, Clancy Nichols had gone out to check on an irrigation canal that was likely clogged by the first rumblings of the slide. At a town hall meeting in Collbran on May 29, Mesa County Sheriff Stan Hilkey told attendees,
These are the facts we have: Sunday morning, 7:18 a.m. seismic activity occurred. Probably that was when the first slide impacted the irrigation of the area, prompting the men to go to the area. At 5:44 p.m. seismic graphs recorded the major slide. Based on what the experts have provided, event duration was only a couple of minutes.
In that brief moment, an enormous slab of the Grand Mesa — the world’s largest flat-topped mountain — came tumbling down. Initial estimates measured the slide at four miles long and two miles wide, reaching 250 feet in depth. At the town hall meeting, Jeff Coe of the USGeological Survey told the crowd that the event is classified as a “debris slide” because it’s a mixture of soil, rocks and trees. Witnesses said that it sounded like a freight train, speeding down the mountain. Continue reading →