File:Earthquake Lake (Madison County, Montana, USA) 12 (31486731097).jpg

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As the name suggests, this body of water formed after a powerful earthquake struck the southwestern Montana-northwestern Wyoming region decades ago. The Hebgen Lake Earthquake occurred at 11:37 PM on 17 August 1959. Shaking triggered a large landslide that blocked the Madison River, forming a lake that was dubbed "Earthquake Lake". Its current appearance is only semi-natural. Not long after the landslide occurred, anthropogenic excavation and rock removal occurred to restore some flow to the Madison River, which lowered lake levels.

Many still-standing trees are in the lake. They were part of a riverine conifer forest before the earthquake and landslide. After six decades, the wood still has not decayed (take that young-earth creationists!).

Locality: view from Route 287, southeastern Madison County, southwestern Montana, USA
Date
Source Earthquake Lake (Madison County, Montana, USA) 12
Author James St. John

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/31486731097 (archive). It was reviewed on 28 January 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

28 January 2020

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Date/TimeThumbnailDimensionsUserComment
current02:30, 28 January 2020Thumbnail for version as of 02:30, 28 January 20204,000 × 2,459 (6.65 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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