Figure showing relative sizes of the 1912 Novarupta/Katmai eruption compared to other large recent eruptions. The 1912 eruption is (as of May 10, 2012) the largest historical eruption in North America, and remains the largest eruption of the 20th century, worldwide.
Image courtesy of USGS.
Please cite the photographer and the U.S. Geological Survey when using this image.
To obtain a high-resolution image, open the full size
page. Then, right click on the image and click
"Save Image As..." or "Save Picture as..."