USGS/Cascades Volcano Observatory, Vancouver, Washington
Mount St. Helens, Washington
Ash and Tephra
- Background and Information
- Maps, Graphics, and Images
- Items of Interest
-
Areal distribution, thickness, and mass of ash from the five major
eruptions after May 18
-- Sarna-Wojcicki, et.al., 1981, IN: USGS Professional Paper 1250
-
Ash and Tephra - Description
-- general information about ash and tephra, including terminology and hazards
-
Ash and Tephra - Images
-
Ash and Tephra - Menu
-- general information about ash and tephra, including terminology and hazards
-
Ashfall: Mount St. Helens, May 18, 1980
-- Excerpt from: Tilling, et.al., 1990
-
Distribution within the United States of
May 18, 1980 ash fallout from Mount St. Helens - Map
-- [Map,20K,InlineGIF]
-- Modified from: Tilling, Topinka, and Swanson, 1990
-
Effects of Mount St. Helens Eruption on Selected Lakes in Washington
-- Dion and Embrey, 1981, USGS Circular 850-G
-
May 18, 1980 Ash Plume Path - Map
-- [Map,22K,InlineGIF]
-- Modified from: Sarna-Wojcicki, et.al., 1981, IN:
USGS Professional Paper 1250
-
Mount St. Helens volcanic-ash fall in the Bull Run watershed, Oregon, March-June 1980
-- Shulters and Clifton, 1981, USGS Circular 850-A
-
CVO Photo Archives - Ash and Tephra
-
Schematic Diagram of West-East Geologic Section of gully bank near NE base of
Mount St. Helens, south of Windy Ridge - Graphic
-- [Schematic,25K,GIF]
-- Modified from: Doukas, 1990, USGS Bulletin 1859
-
Toxicity of Mount St. Helens ash leachate to a blue-green alga
-- McKnight, et.al., 1981, USGS Circular 850-F
-
Vertical growth and downwind progress of the ash plume from the May 18
eruption
-- Sarna-Wojcicki, et.al., 1981, IN: USGS Professional Paper 1250
- Publications and Reports
URL for CVO HomePage is:
<http://vulcan.wr.usgs.gov/home.html>
URL for this page is:
<http://vulcan.wr.usgs.gov/Volcanoes/MSH/Tephra/framework.html>
If you have questions or comments please contact:
<GS-CVO-WEB@usgs.gov>
04/18/08, Lyn Topinka