Earthquake Lake, IDAug 15, 2012
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Earthquake Lake Mt. near Island Park ID
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Bob picking up rocks, from the slide
| We had been told by the locals here at the Valley View RV Park to not miss Earthquake Lake, we ask when did the quake occur , she pointed to the man in the office and said he was camping on his honey moon in 1959 in the campground that was destroyed when the quake occurred . She said he just decided to go visit his family that day; all in the camp ground where killed. She pointed out that his whole family, kids, and grandkids would not be here if he had not made that decision that day. Make sure to read the info, you will be surprised Earthquake Lake is a lake in southwestern Montana; it was created after an earthquake struck on August 17, 1959, killing 28 people. Today, Quake Lake is 190 feet deep and 6 miles long. US 287 follows the lake and offers glimpses of the effects of the earthquake and landslide. The earthquake measured 7.5 on the Richter scale and caused an 80 million ton landslide which formed a landslide dam on the Madison River. The earthquake was the most powerful to hit the state of Montana in historic times. The landslide traveled down the south flank of Sheep Mountain, at an estimated 100 miles per hour, killing 28 people who were camping along the shores of Hebgen Lake and downstream along the Madison River. Upstream the faulting caused by the earthquake forced the waters of Hebgen Lake to shift violently. A seiche, a wave effect of both wind and water, crested over Hebgen Dam, causing cracks and erosion. The earthquake created fault scarps up to 20 ft high in the area near Hebgen Lake and the lake bottom itself dropped the same distance. 32,000 acres of the area near Hebgen Lake subsided more than 10 ft several geysers in the northwestern sections in Yellowstone National Park erupted and numerous hot springs became temporarily muddied. |
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