File:1959 Hebgen Lake Earthquake fault scarp (Cabin Creek, Gallatin County, Montana, USA) 9 (31788139908).jpg
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Summary
| Description |
From Forest Service signage: A quiet August night in a popular Forest Service campground just below Hebgen Dam. Nearby Cabin Creek murmurs softly, and the Moon filters through the pines. Abruptly, the ground trembles, then jolts. . . then with a roar a crack appears, slicing through the campground and across Cabin Creek. The earth shudders like gelatin and trees whip back and forth as the crack widens, the earth on one side drops down between 5 to 20 feet. As the quake subsides, confused and frightened campers gape at the nearly-exposed wall of earth and a waterfall. The 20-foot tall cliff in front of you appeared suddenly the night of August 17, 1959. It is a fault scarp created when the Hebgen Lake Fault Block (a large section of the Earth's crust) dropped. The descent was a rough one, as the bedrock walls of teh deep fault rubbed against each other. It may even have dropped in abrupt jerks: several eyewitnesses said that it felt as if the ground was repeatedly dropping out from under them. Scarps such as this one are clues to the dynamic history of the Basin and Range Province. Old scarps throughout this area tell of other earthquakes that created similar displacements. Locality: trailside fault scarp along Cabin Creek, north of Route 287 (= Hebgen Lake Road), Earthquake Lake Geologic Area-Gallatin National Forest, southern Gallatin County, southwestern Montana, USA |
| Date | |
| Source | 1959 Hebgen Lake Earthquake fault scarp (Cabin Creek, Gallatin County, Montana, USA) 9 |
| Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/31788139908 (archive). It was reviewed on 6 November 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:23, 6 November 2018 | | 4,000 × 3,000 (6.43 MB) | Lu Brito | Transferred from Flickr via #flickr2commons |
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