Mt St Helens Rockfall Events
USGS photo of a rock fall on May 12, 2005 (source: USGS MSH Photo gallery )
As the new dome rises nearly vertically out of the ground, large chunks of it fall off creating brief ash plumes.
The largest so far occurred on July 2nd, however both my camera and the JRO camera were clouded in. Pilots
flying near the volcano reported seeing a large ash plume, though.
These types of ash plumes are expected to occur frequently as the new dome continues to grow. If any clear
the crater, I will post image sequences here.

-
Rockfall 02/18/05 (Video from Kevision Cam)
-Rockfall 06/23/05  (Photo sequence)
-VAAC Ash Alert for July 2nd event
-Rockfall 07/03/05  (photo sequence)
-Rock fall 07/04/05 (photo sequence)
-Rockfall 07/16/05 (photo sequence)
-Rockfall 07/18/05 (photo sequence)
-Rockfall 07/28/05 (photo sequence and links)
-Rockfall 11/22/05 (photo sequence and still-frame video)
Mt St Helens Webcam
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USGS photo of a rockfall on April 26, 2005 (source:
USGS MSH Photo gallery )
Ash plume from a rockfall clears the crater and is visible
from Portland, June 23, 2005