Shuttle-Mir Program Earth Science Early Results

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Volcanoes and Volcanic Hazards

NM22-727-094 Mexico City and Popocateptl This view of Mexico City, the gray area in the middle of the basin, is unusually clear. An urban smog pall frequently masks the city. This photograph also provides a clear view of the summit of Popocateptl, the volcano southeast of Mexico City which has been frequently active. Popocateptl is considered to be one of the world's most potentially deadly volcanoes because of its proximity to more than 20 million people in Mexico City and Puebla.

NM21-771-076 Southern Italy: Naples and Vesuvias Mt. Vesuvius, the volcano in the center of the scene, is famous for the eruption which covered Pompeii almost 2000 years ago (79 AD). Today the volcano is bounded on the north by the large coastal city of Naples.

NM21-770-007 Mt. Ranier, Mt. St. Helens, Mt. Adams, Southern Washington Mt. St. Helens erupted in 1980, blasting away the top of the mountain and creating a huge scar of ash and leveling timber north of the mountain. This view, 16 years after the eruption, centers on the Mt. St. Helens blast area (the gray area surrounding the horseshoe-shaped peak). The streams draining Mt. St. Helens remain choked with ash from the eruption. Mt. Rainier is the large mountain north (above) Mt. St. Helens, and Mt. Adams is to the right of St. Helens. Rainier is considered to be one of the prime volcanic hazards in the United States because of its proximity to the Tacoma-Seattle region (upper left corner). The checkerboard pattern in the forests of the Cascades is from logging clear cuts. Compare this view with the 1974 view.

SL4-192-7081 Mt. St. Helens and Mt. Adams, 1974 Taken from Skylab, this photograph shows Mt. St. Helens (the cone-shaped volcano on the left) 6 years before the eruption. Also note the pattern of clear cuts, which is highlighted by the white snow.

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