File:Armero aftermath Marso.jpg
Armero_aftermath_Marso.jpg (800 × 500 pixels, file size: 200 KB, MIME type: image/jpeg)
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Summary
DescriptionArmero aftermath Marso.jpg |
English: Río Lagunillas, former location of Armero.
An explosive eruption from Ruiz's summit crater on November 13, 1985, at 9:08 p.m. generated an eruption column and sent a series of pyroclastic flows and surges across the volcano's broad ice-covered summit. Pumice and meltwater produced by the hot pyroclastic flows and surges swept into gullies and channels on the slopes of Ruiz as a series of small lahars. Flowing downstream from Ruiz at an average speed of 60 km per hour, lahars eroded soil, loose rock debris and stripped vegetation from river channels. By incorporating water and debris from along river channels, the lahars grew in size as they moved away from the volcano--some lahars increased up to 4 times their initial volumes. Within four hours of the beginning of the eruption, lahars had traveled 100 km and left behind a wake of destruction: more than 23,000 people killed, about 5,000 injured, and more than 5,000 homes destroyed along the Chinchiná, Gualí, and Lagunillas rivers. Hardest hit was the town of Armero at the mouth of the Río Lagunillas canyon, which was located in the center of this photograph. Three quarters of its 28,700 inhabitants perished. (Amalgamation of sentences taken verbatim from source.) |
Date | Late November 1985 |
Source | source, small version with description here |
Author | Jeffrey Marso, USGS geologist |
Camera location | 5° 02′ 00″ N, 74° 53′ 00″ W | View this and other nearby images on: OpenStreetMap | 5.033333; -74.883333 |
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Licensing
Public domainPublic domainfalsefalse |
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.
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Items portrayed in this file
depicts
5°1'59.999"N, 74°52'59.999"W
image/jpeg
e8b51d03fbf80d8e5d84fa935259dc5080213259
204,907 byte
500 pixel
800 pixel
File history
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Date/Time | Dimensions | User | Comment | |
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current | 13:33, 5 November 2015 | 800 × 500 (200 KB) | Gorthian | Corrected color cast |
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Orientation | Normal |
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Horizontal resolution | 96 dpi |
Vertical resolution | 96 dpi |
Software used | PhotoToaster 6.7.1 |
Y and C positioning | Centered |
Exif version | 2.21 |
Meaning of each component |
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Supported Flashpix version | 1 |
Color space | sRGB |
Scene capture type | Standard |