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mahatmakanejeeves

(60,654 posts)
Tue Oct 20, 2020, 01:20 PM Oct 2020

From rock slides to trails, ongoing earthquakes are changing the shape of the Sawtooths

From rock slides to trails, ongoing earthquakes are changing the shape of the Sawtooths

BY NICOLE BLANCHARD
OCTOBER 20, 2020 04:00 AM

Six months after a major earthquake rattled Idaho, the rumbling has continued with a quake shaking near Stanley as recently as Monday morning. Since March 31, the earthquakes have intrigued scientists and, in some cases, reshaped the landscape of the Sawtooth mountains near their epicenter.

The initial magnitude-6.5 quake and its aftershocks caused multiple avalanches in the Sawtooths, but many of the effects were masked by snow. As the weather warmed — and as strong quakes continued — more ramifications came to light: the ‘liquefaction’ of a popular beach at Stanley Lake, toppled rock climbing destinations, structural damage to lava tubes at Craters of the Moon National Monument and Preserve and debris strewn over trails.

“The earthquakes and their effects on the Sawtooth skyline have been an interesting exclamation mark on an already surreal year,” said Ed Cannady, former backcountry manager for the Sawtooth National Recreation Area, in an email.

He noted the loss of the Arrowhead and the Finger of Fate, two distinct peaks favored by rock climbers, in the March 31 earthquake, as well as Baron Spire, which collapsed in August. Video of Baron Spire crumbling and triggering a rockslide went viral online.

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