Images

USGS scientists do last minute preparations for slinging the BLIS instruments to the dome. The instrument package consists of a high and low-gain accelerometer (seismometer) and a microphone.

Mount St. Helens crater and steaming dome as seen from the southeast. October 2005

Mount St. Helens dome and uplift from the west. October 2005

Mount St. Helens crater, dome, and uplift from the northeast. October 2005

Mount St. Helens crater, dome, and plume, as seen from Johnston Ridge Observatory (JRO). October 2005

Mount St. Helens crater, with the Pumice Plain in the foreground. October 2005

Mount St. Helens dome as seen from Sugar Bowl, on the northeast flank. October 2005

Growing lava dome within Mount St. Helens' crater as seen from the east. October 2005

Mount St. Helens dome and uplift as seen from the west. October 2005

A USGS scientist is collecting the ash from the bucket, which was taken back to the Cascades Volcano Observatory for analysis. Results help scientists understand more about the eruption that produced the ash and can give insight into what type of eruptions might occur in the future.

View from the south-southeast side of Mount St. Helens lava dome looking at the lava dome (behind) and the uplift of the glacier and south flank of the lava dome (in front).

View from the southeast side of Mount St. Helens lava dome looking at the uplift of the glacier and south flank of the lava dome.

View from the northeast side of Mount St. Helens lava dome looking at the lava dome (on right) and the uplift of the glacier and south flank of the lava dome (on left).

View from the east side of Mount St. Helens dome looking at the uplift of the glacier and south flank of the lava dome.

Step Channel and Loowit Channel merge on the Pumice Plain. Spirit Lake is visible on the upper right. The yellowish-green color on the surface is plant growth.

The dark "muddy" looking area in the right foreground is old erosional debris flows from Step Channel (on right) over the years. The lighter ribbon of grey to the left of the darker area is a lahar from Loowit Channel from early morning of October 6, 2004. The yellowish-green color on the surface is plant growth.

Debris flow within Loowit Channel that originated from Mount St. Helens.

Ash plume and crater rim at Mount St. Helens, October 2004, aerial view from the south.

Ash plume and crater rim at Mount St. Helens, October 2004, aerial view.

Crater rim and ash from October 2004 Mount St. Helens plume.

Mount St. Helens' crater, October 2004, aerial view from the east.