USGS/Cascades Volcano Observatory, Vancouver, Washington

Geology of Interactions of Volcanoes, Snow, and Water:
MT. RAINIER, WASHINGTON - IMAGES

[Image,220K,GIF]
View southeast of Mount Rainier, August 1982. The northeast flank of the volcano (forming left skyline, including summit) collapsed catastrophically as a gigantic landslide (debris avalanche) and transformed into the gigantic Osceola mudflow (or "lahar") about 5800 years ago. The present summit and its craters were formed during an eruption about 2000 years ago.

URL for CVO HomePage is: <http://vulcan.wr.usgs.gov/home.html>
URL for this page is: <http://vulcan.wr.usgs.gov/Projects/H2O+Volcanoes/Frozen/Geology/Rainier/Rainier.images.html>
If you have questions or comments please contact: <GS-CVO-WEB@usgs.gov>
11/03/97, Lyn Topinka

Geology of Interactions of Volcanoes, Snow, and Water: MT. RAINIER, WASHINGTON - IMAGES

Geology of Interactions of Volcanoes, Snow, and Water:
MT. RAINIER, WASHINGTON - IMAGES