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Oblique aerial view of Mount St. Helens amphitheater as viewed from north. Skamania County, Washington. 1980.


Date Taken


Album caption: Oblique aerial view of Mount St. Helens as viewed from the north, sequence (4A-J) showing about the first 30 seconds of the second eruptive pulse of July 22, 1980. Photographs 4A-J (photos nos. 3-12) taken at about 3-second intervals beginning at 1825:20±5 PDT; photograph 4J taken about 6 second after 4I. Arrow (4H) indicates projection from pyroclastic fountain. Dashed line (4H) indicates front of pyroclastic density flow. Skamania County, Washington. (Photos by J.W. Vallance; graphic on published photos only; see also MSH-July 22, 1980 nos. 5ct-15ct in USGS Photo Library) Published as figure 4-C in U.S. Geological Survey. Professional paper 1335. 1986. Index card unavailable.


Data Owner :
U.S. Geological Survey
Photographer :
Vallance, James W.

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msh_hrp_00005.jpg thumbnail 1.16 MB image/jpeg
msh_hrp_00005.tif 20.11 MB image/geotiff

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Available in the U.S. Geological Survey Denver Library Photographic Collection, Mount St. Helens Collection, MSH-Hoblitt, R.P. Collection.


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Additional Information


Type Scheme Key
Photo Number msh_hrp_00005

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