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The 1991 eruption of Mount Pinatubo in the Philippines' Luzon Volcanic Arc was the second-largest volcanic eruption of the 20th century, behind only the 1912 eruption of Novarupta in Alaska. Eruptive activity began on April 2 as a series of phreatic explosions from a fissure that opened on the north side of Mount Pinatubo.
The 1991 Ultra-Plinian eruption of Mount Pinatubo was the second largest terrestrial eruption of the 20th century (surpassed only by the 1912 eruption of Novarupta), and the largest eruption in living memory. The eruption produced high-speed pyroclastic flows, giant lahars, and a cloud of volcanic ash hundreds of miles across. [2]
The most recent study of Mount Pinatubo before the activities of 1991 was the overall geological study in 1983 and 1984 made by F. G. Delfin for the Philippine National Oil Company as part of the surface investigations of the area before exploratory drilling and well testing for geothermal energy sources in 1988 to 1990. He recognized two life ...
1991 43 A destructive and fatal eruption on 3 June 1991 at 4:08 pm caused the first large-scale pyroclastic flow, unprecedented at the time, which killed 43 people in the evacuation zone. Among these were French volcanologists Katia and Maurice Krafft, as well as American geologist Harry Glicken. The other 40 fatalities consisted largely of ...
The Volcano Disaster Assistance Program (VDAP) was founded by the U.S. Geological Survey and the United States Agency for International Development's Office of U.S. Foreign Disaster Assistance after the eruption of Nevado del Ruiz (Colombia) in 1985. [1] The volcanic eruption melted a glacier triggering a lahar that killed 25,000 people. It was ...
On June 15, 1991, the island of Luzon in the Philippines was ground zero for the second-largest volcanic eruption of the 1900s when Mount Pinatubo blew its top. This historic natural event set ...
Mount Pinatubo ash covers Naval Station Subic Bay On June 15, 1991, Mount Pinatubo , 20 miles (32 kilometres) from the city, violently erupted with a force eight times greater than the May 1980 eruption of Mount St. Helens .
June 1991 – Operation Fiery Vigil was the evacuation of roughly 20,000 non-essential military and United States Department of Defense civilian personnel and their dependents from Clark Air Base and U.S. Naval Base Subic Bay back to CONUS during the eruption of Mount Pinatubo in the Philippines.