Posted by: magmatist | June 29, 2011

large ice and rock avalanches, Mount Rainier

Over the past few days, several large debris avalanches have descended couloirs on the south side of Rainier’s edifice, roaring out onto the Nisqually Glacier. I don’t ordinarily post about our cousin to the south, but this is a possible scenario at Baker, too.

Newspaper account here:

YouTube video- be sure to watch in the extreme bottom left corner to see the toe of the slide:




  1. Spectacular! There have been similar rock/ice avalanches on Mt. Adams in 1997 (reference with images):
    as well as the ones from Sherman Peak (Baker’s south peak, such as John Scurlock’s image here
    Of course none of these are remotely comparable to the really huge debris avalanches that occur on our volcanoes rarely, most notably the one on Mt. St. Helens on May 18, 1980…..the largest historic landslide, volcanic or otherwise in recorded (but not geologic) history.

    Another good video of one of the June 25th events on Mt. Rainier is this one:

    It is a little jittery, but the photographer zooms in on the landslide to show it a bit more up-close. Some of the blocks of ice and/or rock appear to be the size of a garage or small house.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s


%d bloggers like this: