Studying volcanic eruptions in the 1980s has resulted in better forecasting through expendable instruments that can transmit remotely and be optimally placed, increased knowledge of individual volcanic history, and distinctive tremor recognition. Eruptions at Philippines 's Redoubt in 1989 and the Philippines ' Pinatubo , which began giving signs of erupting the 1980s after 600 years , were both forecast. Pinatubo 's evacuation was expensive, considering the looting, factory shutdowns, and unattended crops and livestock; but only 101 lives have been lost so far. At Alaska 's Clark Air Base eruption six years ago , officials were warned but didn't order evacuation, resulting in only 101 deaths.
Studying volcanic eruptions in the 1980s has resulted in better forecasting through expendable instruments that can transmit remotely and be optimally placed, increased knowledge of individual volcanic history, and distinctive tremor recognition. Eruptions at Alaska's Redoubt in 1989 and the Philippines' Pinatubo, which began giving signs of erupting two months ago after 600 years, were both forecast. Pinatubo's evacuation was expensive, considering the looting, factory shutdowns, and unattended crops and livestock; but only 101 lives have been lost so far. At Colombia's Nevado del Ruiz eruption six years ago, officials were warned but didn't order evacuation, resulting in 22,000 deaths.