File:Volcan de Fuego pyroclastic flows - october 1974 eruption.jpg

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Volcan_de_Fuego_pyroclastic_flows_-_october_1974_eruption.jpg ‎(640 × 426 pixels, file size: 40 KB, MIME type: image/jpeg)

Summary

Description
English: Pyroclastic flows sweep down the east flank of Volcán de Fuego — in October 1974, Guatemala.
  • One of the largest historical eruptions of Volcán de Fuego.
  • Ash clouds rise off the base of the pyroclastic flows, which traveled up to 7 km from the summit at estimated average velocities of 60 km/hr.
  • The travel direction of pyroclastic flows is influenced by topography. The denser basal portion of the pyroclastic flows follows topographic lows on the flanks of the volcano — note a smaller pyroclastic flow descending a gully at the right.
Date
Source http://www.volcano.si.edu/world/volcano.cfm?vnum=1402-09=&volpage=photos&photo=039022
Author William Buell, Smithsonian Institution


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October 1974

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current02:36, 7 May 2010Thumbnail for version as of 02:36, 7 May 2010640 × 426 (40 KB)Arjuno3{{Information |Description={{en|1=Pyroclastic flows sweep down the east flank of Fuego volcano, Guatemala, in October 1974, during one of the largest historical eruptions of the volcano. Ash clouds rise off the base of the pyroclastic flows, which travele
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