Copyright Information: All images are in the public domain and available for free. If you use this image, credit NOAA/NGDC, R. Batalon, U.S. Air Force. |
View of April 2 explosion craters; the slide was taken in late April. The April 2 explosion, which was about two-thirds of the way down the volcano's flank, ejected clouds of steam and minor quantities of ash to 500-800 m height. Ash (shown here around one of the craters) was carried to the west and dropped at distances of 2 to 10 km, over an area of about 10,000 km2. It forced about 5,000 residents on the west flank to leave the area. Image Credit: R. Batalon. U.S. Air Force June 15, 1991 Pinatubo Philippines volcano Mount Pinatubo is an andesitic island arc volcano, located on the southwestern part of the island of Luzon in the Philippines. Prior to 1991, it had been dormant for more than 635 years. After months of rumbling, the volcano stirred to life on April 2, 1991. The next two and a half months were marked by generally increasing volcanic and seismic activity at the site. On June 15, a cataclysmic eruption began with a tremendous explosion. This slide set shows the early stages of the eruption phase, the cataclysmic eruption of June 15, and the effects and aftermath of the eruption. Subsequent calamities caused by the ash, pyroclastic flows, mud flows, and flooding are also depicted. Event Data:
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