Copyright Information: All images are in the public domain and available for free. If you use this image, credit NOAA/NGDC, C.G. Newhall, U.S. Geological Survey. |
Aerial view taken in late April looking south at the north flank of Pinatubo and showing the area devastated by the April 2 explosions. The explosions occurred about 1.5 km northwest of the summit, at the east end of Pinatubo's geothermal area. They denuded about one km2 of forested land, and ejected small steam and ash clouds, depositing ash 10 km away. The road in the foreground provided access to geothermal drilling stations. Image Credit: C.G. Newhall. U.S. Geological Survey 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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