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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. It is about 90 km (56 mi) northwest of the capital city of Manila.
Lake Pinatubo, the crater lake resulting from the 1991 eruption, pictured here in 2008. Activity at the volcano remained low until July 1992 when a new lava dome started growing in the caldera. Volcanologists suspected that further violent eruptions could be possible, and some areas were evacuated. However, the eruption was only minor.
Also known as Lake Pinamalay Pinatubo: crater lake 183 ha (450 acres) 926 m (3,038 ft) Zambales [18] III: Summit crater lake created after the 1991 eruption of Mount Pinatubo. Pulangi: reservoir 1,985 ha (4,910 acres) 340 m (1,120 ft) Bukidnon: X
Subic Bay, at the southern end of the province, provides a natural harbor, and was the location of the U.S. Naval Base Subic Bay until its closure in 1992. [6] The summit and crater lake of Mount Pinatubo lies within Botolan municipality in Zambales, near the tripoint of Zambales, Pampanga and Tarlac provinces. [47]
Although the mountains are volcanic in origin, [2] Mount Pinatubo is the only active volcano in the mountain range. Its eruption on June 15, 1991 was the second most powerful volcanic eruption of the 20th century after the 1912 eruption of Novarupta in Alaska.
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 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. [2] [3] [4] The mountain is currently under an immense deforestation threat. [5] Mount Arayat has a breached crater on its northwest side ...
Mount Pinatubo is on the Central Luzon landmass between the South China Sea and the Philippine Sea. The 1991 eruption of Pinatubo was andesite and dacite in the pre-climactic phase but only dacite in the climactic phase. The climactic phase had a volume of 3.7–5.3 km 3. [9]
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