File:1959 Hebgen Lake Earthquake fault scarp (Cabin Creek, Gallatin County, Montana, USA) 9 (31788139908).jpg
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Summary
Description1959 Hebgen Lake Earthquake fault scarp (Cabin Creek, Gallatin County, Montana, USA) 9 (31788139908).jpg |
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. |
6 November 2018
Items portrayed in this file
depicts
some value
13 August 2018
0.008 second
2.8
6.2 millimetre
image/jpeg
6796bc1ad1b1e056385d472298e9c46dc40e500d
6,737,539 byte
3,000 pixel
4,000 pixel
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:23, 6 November 2018 | 4,000 × 3,000 (6.43 MB) | Lu Brito | Transferred from Flickr via #flickr2commons |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/125 sec (0.008) |
F-number | f/2.8 |
ISO speed rating | 80 |
Date and time of data generation | 17:10, 13 August 2018 |
Lens focal length | 6.2 mm |
Image title | |
Width | 4,000 px |
Height | 3,000 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 13.0 (Macintosh) |
File change date and time | 01:47, 1 November 2018 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 17:10, 13 August 2018 |
Meaning of each component |
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Image compression mode | 3 |
Shutter speed | 6.96875 |
APEX aperture | 2.96875 |
Exposure bias | −0.66666666666667 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,460.905349794 |
Focal plane Y resolution | 16,483.516483516 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Landscape |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 21:47, 31 October 2018 |
Unique ID of original document | FC1B268D7EE151479D2E4F0DFA379D6F |
IIM version | 32,767 |