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Global Volcanism Program | Image GVP-01924

The flat-topped, lighter-green vegetated deposit that winds down the valley at the top center of the photo is a pyroclastic flow fan from the last major eruption of Pinatubo prior to 1991, about 500 years ago. This photo, taken on 3 June 1991, shows the pre-eruption profile of the upper Marella River valley.   Photo by Rick Hoblitt, 1991 (U.S. Geological Survey).

The flat-topped, lighter-green vegetated deposit that winds down the valley at the top center of the photo is a pyroclastic flow fan from the last major eruption of Pinatubo prior to 1991, about 500 years ago. This photo, taken on 3 June 1991, shows the pre-eruption profile of the upper Marella River valley.

Photo by Rick Hoblitt, 1991 (U.S. Geological Survey).

Keywords: deposit | erosion


Pinatubo