David Harlow is one of the few volcano seismologists in the world. He has been studying volcanoes for over 40 years, and he was a member of the team that discovered the first known earthquake on Mount St. Helens. Pinatubo erupted according to the predictions by Harlow and the team, blowing ash 75,000 feet into the air and sending rivers of molten ash down its slope. The accurate prediction enabled the evacuation of 84,000 people from the area. ; Three weeks ago, Harlow joined a team of five U.S. Geological Survey scientists who worked with 10 Filipino scientists to try to forecast the eruption of the volcano, which had been dormant for about 600 years. Evacuees included personnel and dependents from the U.S. Clark Air Force Base. The base may have to be abandoned.
David Harlow is one of the few volcano seismologists in the world. He has been studying volcanoes for over 40 years, and he was a member of the team that discovered the first known earthquake on Mount St. Helens. Pinatubo erupted according to the predictions by Harlow and the team, blowing ash 75,000 feet into the air and sending rivers of molten ash down its slope. The accurate prediction enabled the evacuation of 84,000 people from the area. Evacuees included personnel and dependents from the U.S. Clark Air Force Base. The base may have to be abandoned.