The fracturing of the ice is likely associated with the collapse of the delta. Photo courtesy: Ross Engle, Idaho Transportation Department Director of Flight Operations. Stanley Lake Liquefaction Shaking from the March 31, 2020 M6.5 Stanley earthquake, or one of the subsequent aftershocks, caused liquefaction of sediments near the inlet of Stanley Lake. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. Light 4.2 quake near Stanley, Idaho - yet another aftershock of the massive magnitude 6.5 quake from 31 March. The U.S. Geological Survey … In Flathead, earthquake damage mostly limited to nerves ... Steve Stanley, Lake County’s emergency management director, said that county’s dispatch center was also overwhelmed by calls. This comparison of satellite images shows Stanley Lake before (left image, 11/13/2019) and after (right image, 5/4/2020) the main earthquake event and the initial aftershocks. 875 Perimeter Dr. MS 3014 Idaho Geological Survey, 5/15/2020. The 6.5-magnitude earthquake on March 31 near Stanley in south-central Idaho sent a ripple-effect of situations for researchers to explore. The earthquake was centered 19 miles northwest of Stanley… Several mature trees that were growing on the delta are now partially submerged. SAWTOOTH NATIONAL FOREST, COURTESY Cannady also … A 6.5 magnitude earthquake rocked southern Idaho on Tuesday evening, the most powerful temblor to strike the state in decades.The quake was centered 19 miles northwest of Stanley and roughly 78 miles northeast of Boise, the U.S. Geological Survey said. This can result in effects such as sand boils, lateral spreading, fissures, and ground subsidence. Suite 201 Idaho earthquake damage. The delta is clearly visible in the pre-earthquake image, but not in the post-earthquake image (for full resolution, please click here). The inlet creek is visible in the lower left corner of the picture. Six months after a major earthquake rattled Idaho, the rumbling has continued with a quake shaking near Stanley as recently as Monday morning. Morrill Hall, 3rd Floor The inlet stream is in the foreground. Oblique aerial view of the Stanley Lake inlet area looking south. Light mag. STANLEY (Idaho Statesman) — Six months after a major earthquake rattled Idaho, the rumbling has continued with a quake shaking near Stanley as recently as Monday morning. He hopes that will help geologists describe the event and the overall geological characterization of the earthquake and its aftershocks. Damage reported following M5.7 earthquake near Salt Lake City More A magnitude 5.7 earthquake that struck Utah Wednesday morning rattled the state, shutting down a major airport, triggering power outages and damaging some buildings, though no deaths or serious injuries. We recorded locations of liquefaction evidence, and collected ground and UAV photographs. Idaho Geological Survey, 5/15/2020. 9, 2020 at 4:26 PM MDT According to the United States Geological Survey (USGS), the quake hit on Tuesday 15 December 2020 at 1:28 pm local time at a shallow depth of 6.3 miles. There were no immediate reports of damage or injuries. A newly constructed boat ramp replaced the inlet delta for boats in 2019. It sent massive amounts of snow sliding onto Highway 20 near Banner Summit and even on Galena Summit. Liquefaction is the processes in which shaking or vibration of saturated, unconsolidated soil causes a loss of strength. Viewer pictures: Idaho earthquake damage 1/20 "The entire spire came down." 208-885-7991, Idaho Water Center We don't yet have enough information to establish whether the failing of the delta was caused by the main shock or any of the stronger aftershocks with epicenters closer to Stanley Lake. Idaho Geological Survey, 5/15/2020. Shaking lasted approximately 10 seconds and was felt over a … Boise, ID 83702. And it caused some impressive snow avalanches throughout the Sawtooth and Smoky Mountains, even toppling the 75-foot thick Arrowhead above the Cramer Lakes … 322 E. Front Street Severe Weather Alert Idaho’s magnitude-6.5 earthquake on March 31 caused the Stanley Lake Inlet Beach to collapse, officials discovered. The U.S. Geological Survey reports the magnitude 6.5 temblor struck just before 6 p.m. It was centered 73 miles (118 kilometers) northeast of Meridian, near the rural mountain town of Stanley. 208-332-4420. The damage wasn’t recognized earlier because of the nearby snowpack and ice. Several tension cracks oriented parallel to the shoreline can be seen submerged in the water. Idaho Geological Survey, 5/15/2020. These cracks formed when the delta sediments collapsed and laterally spread into the lake. STANLEY — A large earthquake struck central Idaho Tuesday evening, with people across the state reporting shaking. Moscow, ID 83844-3014. The U.S. Geological Survey reports the magnitude 6.5 temblor struck just before 6 p.m. BOISE, Idaho (AP) — An earthquake struck north of Boise Tuesday evening, with people across a large area reporting shaking. It caused significant structural cracks on the Custer County courthouse in Challis. STANLEY, Idaho — A popular Sawtooth beach, boat launch and fishing area is now under water, and Idaho Gelogical Survey officials say the culprit was likely the 6.5 magnitude earthquake in … On May 7th, colleagues from the US Forest Service pointed out that during a field visit to the inlet of Stanley Lake, the delta that used to form a popular beach and recreational site was now under many feet of water. STANLEY, Idaho (KIFI/KIDK)-Idaho Geological Society geologists believe the 6.5 Magnitude earthquake that struck central Idaho on March 31, 2020 may have had some significant impact at Stanley Lake.After reviewing photos and satellite imagery of the inlet, the geologist said it appears a former boat launch, beach, and popular fishing area was flooded with deep water.“The most probable cause for the “disappearing” of the inlet delta is a combination of liquefaction and compaction of saturated sediments and some possible sliding and lateral spreading on the delta toward the deeper part of the lake as a result of the March 31 earthquake or the associated aftershocks,” said Claudio Berti, Director and State Geologist, Idaho Geological Survey. It was centered 73 miles northeast of Meridian, near the rural mountain town of Stanley. STANLEY, Idaho (KIFI/KIDK)-Idaho Geological Society geologists believe the 6.5 Magnitude earthquake that struck central Idaho on March 31, 2020 may have had some significant impact at Stanley Lake. 4.2 earthquake - 13 km WSW of Stanley, Idaho (USA, on 2020-08-07 9:11 pm Light magnitude 4.2 earthquake at 10 km depth. The most recent one, a magnitude 7.0 earthquake near Borah Peak in 1983, killed two children in Challis and caused an estimated $12.5 million in property damage across Challis and Mackay. https://www.idahostatesman.com/outdoors/camping/article242658061.html Contests and Promotions, © 2020, NPG of Idaho, Inc. Idaho Falls, ID USA, View all our Vallow-Daybell coverage here, ‘Mad scramble’: Unlikely places stocked Idaho virus supplies, US clears Moderna vaccine for COVID-19, 2nd shot in arsenal, How to set up a home gym space that works for you, UPS driver accuses Latino package recipient of being unable to read, write or speak English, Air Force graduates its largest class of female test pilots and engineers in history, Best moments from CNN and Sesame Street’s coronavirus town hall for the holidays. At 5:52 pm local time (MDT) on March 31, 2020, a magnitude (M) 6.5 earthquake occurred approximately 19 miles northwest of Stanley, Idaho. The interactive map below displays the orthophotograph and the mapped features. “The loss of the inlet beach for fishing and recreation is unfortunate because that area was so popular with visitors at the lake, fortunately, the new boat ramp and campground construction were completed before this event, ensuring access for boaters and campers going forward,” said Brian Anderson, Deputy Area Ranger for the Sawtooth National Recreation Area. Picture taken on May 12th, 2020. The former delta was located where the inlet met the lake, but subsequently collapsed and subsided. Several tension cracks oriented parallel to the shoreline can be seen. Quake Data | User Reports | Earlier quakes in same area. Credit Idaho Geological Survey “Those guys would not be canoeing three months ago, they would’ve been walking and now they’re paddling,” he said. According to U.S. Geological Survey data, the … Berti hopes to visit the actual site to collect data in the near future. Breaking News Alert Update Sat, 8 Aug 2020, 15:21. There were no immediate reports of damage or injuries. 8 Aug 02:24 UTC: First to report: USGS after 13 minutes. More than 2 … An aerial view of Stanley Lake shows the now-submerged delta, which slid into the lake after the March 31 earthquake north of Stanley. Baron Spire, also known as Smoothie or Old Smoothie, fell when a magnitude-4.2 quake struck around 8:11 p.m. Friday. Use KTVB's interactive slider to see the damage after Friday's 4.2-magnitude earthquake near Stanley. Vertical aerial view of the inlet stream at Stanley Lake. Shaking from the March 31, 2020 M6.5 Stanley earthquake, or one of the subsequent aftershocks, caused liquefaction of sediments near the inlet of Stanley Lake. Idaho Geological Survey, 5/15/2020. STANLEY (Idaho Statesman) – Weeks after a magnitude-6.5 earthquake shook Idaho, officials discovered a casualty of the quake, which was the state’s second-most-powerful on record. Stanley Lake Inlet Beach Collapses a result of the March 31 Earthquake (Image: U.S. Forest Service - Sawtooth National Forest) (KMVT) By Garrett Hottle Published: May. Aerial view of the Stanley Lake shoreline northeast of the inlet stream, showing subsidence and shoreline-parallel tension cracks near the boardwalk structure. The inlet beach was still accessible through a trail and boardwalk. Aerial view of the W shore of Stanley Lake and upstream area, showing modification of the shoreline and extent of areal flooding. The damage wasn’t immediately visible following the earthquake due to snowpack and ice in the area. Experts say the change is likely due to an earthquake in the region in March. EEO Report | Terms of Use | Privacy Policy | About Us |, Daily News Update It was recently revealed that the earthquakes caused a beach at Stanley Lake to collapse. This picture of the NW corner of Stanley Lake, taken on April 9th, 2020, shows concentric fractures on the ice-covered surface of the lake atop the area of the inlet delta. As snow and ice are melting out of Custer County’s high country, at least one piece of damage caused by the March 31 earthquake has been revealed. Oblique aerial view looking east across Stanley Lake. The UAV photographs were processed into an orthophotograph, from which we mapped additional liquefaction features. Liquefaction is the processes in which shaking or vibration of saturated, unconsolidated soil causes a loss of strength. Pictures from the field and reports of field observation suggest that the "disappearance" of the delta was caused by a combination of liquefaction/compaction of saturated sediments and possible sliding and lateral spreading of the delta into the deeper part of the lake. MISSOULA — Damage was minimal, but the magnitude 5.8 earthquake centered south of Lincoln early Thursday was the most violent yet in Montana west of the Continental Divide. Aerial view of the Stanley Lake shoreline adjacent to the inlet stream (sandy bed on left). The inlet beach at Stanley Lake collapsed as a result of the March 31 earthquake that struck central Idaho. Following reports of shoreline changes by citizens and US Forest Service employees, Idaho Geological Survey staff visited Stanley Lake to document possible liquefaction effects. The USGS said the area of the earthquake is related to a tectonic extension linked to a magnitude 6.9 Borah Peak earthquake in 1983. University of Idaho Aging campground infrastructure was replaced with a new Stanley Lake Campground on the east side of the lake. Photo courtesy: Ben VandenBos, Sawtooth Avalanche Center (https://www.sawtoothavalanche.com/). 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