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 image is made available as a Public Domain Work, but proper attribution is appreciated.