Global Volcanism Program | Image GVP-02851

This 30 March 1980 photograph shows two new summit craters formed by phreatic eruptions at Mount St. Helens beginning on 27 March. Continued explosions soon merged the craters into a single crater 300 x 500 m wide and up to 250 m deep. Photo by Don Swanson, 1980 (U.S. Geological Survey).

This 30 March 1980 photograph shows two new summit craters formed by phreatic eruptions at Mount St. Helens beginning on 27 March. Continued explosions soon merged the craters into a single crater 300 x 500 m wide and up to 250 m deep.

Photo by Don Swanson, 1980 (U.S. Geological Survey).

Creative Commons Icon This image is made available as a Public Domain Work, but proper attribution is appreciated.

Galleries: Craters

Keywords: crater

St. Helens