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North Peak of Nevados Huascaran, the source of debris avalanche that buried the town of Yungay and Ronrajirca. An estimated 25-50 million cubic waters of and ice broke from the part of the peak in shadow. Peru. 1970.
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Peru Earthquake May 31, 1970. Nevados Hascaran, showing the area overrun by the upper part of the debris avalanche (outlined by dashed line): Moraines, M, below Glacier 511 and between Rio Shacsha and Quebrada Armapampa, and areas splattered by airborn mud and boulders. June-July 1970.
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Peru Earthquake May 31, 1970. Damage from the flood wave at the power company camp near Huallanca, which is visible in background. The wave, 20 meters deep at this point, swept away homes that formerly covered the level area in this view and deposited a layer of mud and rocks. The fence posts in the foreground are bent in the direction of the flow. June-July 1970.
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Peru Earthquake May 31, 1970. Field west of the Rio Shacsha that was pockmarked by boulders hurled cross the Rio Shacsha valley. Most of the rocks are projectiles derived from the Huascaran debris avalanche. June-July 1970.
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Peru Earthquake October 3, 1974. Heavily damaged building in the Lima area after the magnitude 7.6 shock. 1974. Earthquake Information Bulletin, v. 7, no. 2, p. 11.
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Peru Earthquake May 31, 1970. Block of granodiorite weighing 7,000 tons that was swept along by the Huascaran debris avalanche. Photo by G.E. Ericksen, circa 1970. Pages 68-69 (lower photo), Earthquake Information Bulletin, v.12, no.2.
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Peru Earthquake May 31, 1970. Destruction of adobe houses in central Huarez. 1970. Back cover, Earthquake Information Bulletin, v.12, no.2.
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Peru Earthquake May 31, 1970. Block of granodiorite (estimated to weigh 700 tons) that was transported by the Huascaran debris avalanche to near the site of the former town of Ranrahirca. A layer of mud showing polygonal cracks resulted from seepage from the avalanche after it came to rest. The top of the block is covered with mud and rock fragments deposited by the avalanche after the block came to rest. 1970. Figure 6, U.S. Geological Survey Circular 639.
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Peru Earthquake May 31, 1970. Block of granodiorite estimated to weigh about 7,000 metric tons that was transported by the Huascaran debris avalanche and deposited near the Rio Santa west of Ranrahirca. The top of the block is covered with boulders that were deposited from the debris flow after the block came to rest. This block was left exposed after the enclosing mud flowed and/or was washed away after the avalanche. The pole at the base of the block is 4 meters high. June-July 1970.
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Large impact crater (2.5 meters deep, 7 meters wide, and 11 meters long) in field at the south side of Quebrada Llanganuca, which was made by a huge block of rock or cluster of rocks hurled several hundred meters by the Huarascan debris avalanche. All rocks in or near crater are projectiles or fragments of projectiles from the avalanche. The two large rocks in the crater are about 2 1/2 meters in longest dimension. Peru. 1970. Published as figure 3 in U. S. Geological Survey. Circular 639. 1970.
Categories: Image; Tags: Peru, craters, photo print
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Peru Earthquake May 31, 1970. Lower part of the Huascaran debris avalanche: Yungay, Ranrahirea, Matacoto, Cemetery Hill in Yungay, overtopped ridge between the Rio Shacsha and Yungay. The combined Yungay and Ranrahirea debris lobes cover an area of about 8 kilometers and probably contain close to 50 million meters of material. June 1970.
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Photo shows the Aguas Calientes, Peru landslide taken in April, 2004. Photo also on Wikipedia Commons, http://commons.wikimedia.org/wiki/File:Aguas_calientes_landslide_april_2004.jpg
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Peru Earthquake October 3, 1974. Example of the extensive damage in La Molina District. This classroom and a laboratory building at the Agrarian University partially collapsed. 1974. Pages 6-7, Earthquake Information Bulletin, v.7, no.2.
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A lobe of the Huascaran debris avalanche that now covers the former city of Yungay; the avalanche flowed over a 100-200 meter high ridge (arrow) between Yungay and Llanganuco Valley. Peru. 1970. Published as figure 4 in U. S. Geological Survey. Circular 639. 1970.
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Peru Earthquake May 31, 1970. Bus and truck were completely intermeshed by the Huascaran debris avalanche. Photo by G.E. Ericksen, 1970. Pages 68-69 (upper photo), Earthquake Information Bulletin, v.12, no.2.
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Destruction of houses in residential area of southeastern Chimbote where the ground settled due to compaction of water-saturated sediments; flooded area was dry before the earthquake, Peru, 1970. Published as figure 12 in U. S. Geological Survey, Circular 639. 1970.
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Chimbote-Huallanca railroad damaged as the result of differential compaction and lateral spreading of water-saturated unconsolidated sediments. Peru. 1970. Published as figure 9 in U. S. Geological Survey Circular 639. 1970.
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Peru Earthquake May 31, 1970. Up the Rio Santa from 4 miles above Caras, showing the area inundated by the flood wave that originated at the Huascaran debris avalanche. The destructive wave overflowed the banks of the Rio Santa almost continuously to the coast, a distance of about 150 kilometers. June- July 1970.
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Peru Earthquake May 31, 1970. Nevados Huascaran and the Huascaran debris avalanche that destroyed Yungay and Ranrahira. Portion of figure 2, U.S. Geological Survey Circular 639.
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Overturned bus on top of debris avalanche at site of former Plaza de Armas, Yungay. Depth of avalanche here is about 15 feet, Peru, 1970.


map background search result map search result map Example of the extensive damage in La Molina District. Peru Earthquake October 3, 1974. Peru Earthquake October 3, 1974. Heavily damaged building in the Lima area after the magnitude 7.6 shock. Destruction of adobe houses in central Huarez. Peru Earthquake, 1970. Chimbote-Huallanca railroad damaged as the result of the Peru earthquake. 1970. Nevados Hascaran avalanche showing the area overrun by the upper part of the debris avalanche (outlined by dashed line) caused by the Peru Earthquake. 1970. Up the Rio Santa above Caras, showing the flood wave as a result of the Huascaran debris avalanche. Peru Earthquake 1970. Landslide, Aguas Calientes, Peru. 2004. Example of the extensive damage in La Molina District. Peru Earthquake October 3, 1974. Peru Earthquake October 3, 1974. Heavily damaged building in the Lima area after the magnitude 7.6 shock. Destruction of adobe houses in central Huarez. Peru Earthquake, 1970. Chimbote-Huallanca railroad damaged as the result of the Peru earthquake. 1970. Nevados Hascaran avalanche showing the area overrun by the upper part of the debris avalanche (outlined by dashed line) caused by the Peru Earthquake. 1970. Up the Rio Santa above Caras, showing the flood wave as a result of the Huascaran debris avalanche. Peru Earthquake 1970. Landslide, Aguas Calientes, Peru. 2004.