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Mount Pinatubo [4] is an active stratovolcano in the Zambales Mountains in Luzon in the Philippines. Located on the tripoint of Zambales, Tarlac and Pampanga provinces, [5] [6] most people were unaware of its eruptive history before the pre-eruption volcanic activity in early 1991.
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 .
Lake Pinatubo (Filipino: Lawa ng Pinatubo) is the summit crater lake of Mount Pinatubo formed after its climactic eruption on June 15, 1991. The lake is located in the Zambales Mountains, in Botolan, Zambales, near the boundaries of Pampanga and Tarlac provinces in the Philippines.
Mount Asama: 4 Japan: 1783 Tenmei eruption: 1,000 Nevado del Ruiz: 3 Colombia: 1845 [17] 847 Mount Pinatubo: 6 Philippines: 1991 1991 eruption of Mount Pinatubo: 700 Hokkaido Komagatake: 5 Japan: 1640 [18] 600 Nevado del Ruiz: 4 Colombia: 1595 [17] 507 Tavurvur: 4 Papua New Guinea: 1937 [19] 500 Hibok-Hibok: 3 Philippines: 1951 [20] [21] 477 ...
Operation Fiery Vigil was the emergency evacuation of all non-essential military and U.S. Department of Defense civilian personnel and their dependents from Clark Air Base and U.S. Naval Base Subic Bay during the June 1991 eruption of Mount Pinatubo in the Republic of the Philippines.
Mount Pinatubo had no recorded historical eruption before its cataclysmic 1991 eruption. The Philippine Institute of Volcanology and Seismology (PHIVOLCS) currently lists 355 volcanoes in the Philippines as inactive. [ 2 ]
Since mid-June 1991, when violent eruptions triggered Mount Pinatubo's first lahars in 500 years, a system to monitor and warn of lahars has been in operation. Radio-telemetered rain gauges provide data on rainfall in lahar source regions, acoustic flow monitors on stream banks detect ground vibration as lahars pass, and staffed watchpoints ...
Ten miles (16 km) to the west of Mount Arayat is Angeles City and the former Clark Air Base. The active volcano Mount Pinatubo is located 26 km (16 mi) west, while Manila is located 75 km (47 mi) to the south. Mount Arayat was officially declared a national park in 1933 and a tourist spot in 1997.