File:Pyroclastic Flow St. Helens.jpg

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U.S. Geological Survey scientist examines pumice blocks at the edge of a pyroclastic flow from the May 18, 1980 eruption.

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Summary

DescriptionPyroclastic Flow St. Helens.jpg	U.S. Geological Survey scientist examines pumice blocks at the edge of a pyroclastic flow from the May 18, 1980 eruption.
Date	30 May 1980
Source	United States Geological Survey - http://vulcan.wr.usgs.gov/Volcanoes/MSH/Images/MSH80/framework.html#pyroclastic_flows
Author	Donald A. Swanson

Licensing

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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Original upload log

The original description page was here. All following user names refer to en.wikipedia.

2008-01-22 04:50 Axcordion 600×410× (80020 bytes) {{Information |Description=U.S. Geological Survey scientist examines pumice blocks at the edge of a pyroclastic flow from the May 18, 1980 eruption. |Source=United States Geological Survey - http://vulcan.wr.usgs.gov/Volcanoes/MSH/Images/MSH80/framework.

File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	18:10, 20 March 2013		600 × 410 (174 KB)	Rémih	color balancing, contrast, saturation, removing watermark
	21:19, 13 March 2013		600 × 410 (78 KB)	<bdi>Ccmpg</bdi>	{{Information \|Description={{en\|U.S. Geological Survey scientist examines pumice blocks at the edge of a pyroclastic flow from the May 18, 1980 eruption.<br/> en:uk:Файл:Pyroclastic Flow St. Helens.jpg}} \|Source=Transferred from [http://en.wi...