Ash plume (close up) from May 18, 1980 Mount St. Helens. Plume move...

Ash plume (close up) from May 18, 1980 Mount St. Helens. Plume move...

Detailed Description

For more than nine hours a vigorous plume of ash erupted, eventually reaching 20-25 km (12-15 mi) above sea level. By early May 19, the devastating eruption was over.

Details

Image Dimensions: 3072 x 2048

Date Taken: