Mount Pinatubo Damage (image) Rutgers University Share Print E-Mail Caption Damage from volcanic ash at Clark Air Force Base in the Philippines after the June 15, 1991, eruption of Mount Pinatubo. Credit Richard Hoblitt/U.S. Geological Survey Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.