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 .

Feb 9, 2025 · Mount Pinatubo, volcano, western Luzon, Philippines, that erupted in 1991 (for the first time in 600 years) and caused widespread devastation. Mount Pinatubo is located about 55 miles (90 km) northwest of Manila and rose to a height of about 4,800 feet (1,460 m) prior to …

At Pinatubo, the volcanic unrest began April 2, 1991, with a series of small steam explosions. In Manila, Dr. Raymundo Punongbayan, Director of PHIVOLCS, dispatched a team to investigate a fissure that opened on the north side of the volcano and was emitting steam and sulfur fumes.

On July 16, 1990, a magnitude 7.8 earthquake (comparable in size to the great 1906 San Francisco, California, earthquake) struck about 60 miles (100 kilometers) northeast of Mount Pinatubo on the island of Luzon in the Philippines, shaking and squeezing the Earth's crust beneath the volcano.

Jul 27, 2023 · Mount Pinatubo is, a volcano, in western Luzon, Philippines, that erupted in 1991 (for the first time in 600 years) and caused widespread devastation. Mount Pinatubo is located about 55 miles (90 km) northwest of Manila and rose to a height of about 4,800 feet (1,460 m) before its eruption.

Mount Pinatubo is a volcano located on the island of Luzon in the Philippines. Nestled in the central part of the Zambales mountain range, the volcano lies 55 miles northwest of the capital city of Manila.

1991 Mt. Pinatubo eruption caused widespread impacts across societal, economic and environmental areas. Pyroclastic flows, lahars as well as the ashfall hazard all resulted in damage and casualties.

Aug 1, 2011 · The modern Pinatubo is a dome complex and stratovolcano made of dacite and andesite. This complex is surrounded by pyroclastic flow and lahar deposits from large explosive eruptions. These explosive eruptions have been clustered into 6-12 eruptive periods.

Pinatubo ([pre-eruption] summit elevation 1,745 m), 100 km NW of Manila (figure 1), is composed of a high-silica hornblende andesite-dacite dome complex, possibly located within a small caldera.