Strong earthquake shook the valley | Environment
Already on edge due to a deadly viral pandemic, residents of Wood River Valley were further rocked in the early evening of March 31 by the second largest earthquake on record in Idaho.
The US Geological Survey located the 6.5 magnitude quake deep underground about 20 miles northwest of Stanley.
“The tremors perceived for the quake were very strong,” the USGS reported. “The event was widely felt, with almost 16,000 ‘Did you feel it? »Reports submitted so far, but [is] likely to have a low impact.
According to a USGS response map, the quake was felt as far north as southern British Columbia and Alberta, and as far west as western Washington and Oregon.
The strongest earthquake on record in Idaho was the 6.9 magnitude earthquake in Borah, four times stronger than one this year, which caused an estimated $ 12.5 million in damage and killed two children in Challis in 1983.
According to the Custer County Sheriff’s Office, no damage has been reported to Stanley or Challis as a result of this year’s earthquake. The Blaine County Sheriff’s Office said it had only received a handful of reports of minor damage.
Hailey resident Ginna Lagergren, who experienced both earthquakes, said she felt a distinct difference, the movement this time “vibrant, not bumping up and down like the 1983 earthquake. “.
The quake brought down two distinct rock formations in the Sawtooth Mountains: the Arrowhead and Summit Block and a smaller boulder atop Finger of Fate, one of the most climbed rock formations in the Sawtooths.
For months, the USGS reported numerous aftershocks at various epicenters near the initial quake. In late May, geophysicist Don Blakeman of the USGS National Earthquake Information Center in Golden, Colo., Said, “It’s still a very active series.”
A aftershock in August triggered a large sawtooth landslide that resulted in the destruction of Baron Spire, a 120-foot granite rock formation perhaps best known to climbers as the “Old Smoothie.”