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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.
A 7.8 M w earthquake strikes the island of Luzon, Philippines. The epicenter was near the town of Rizal, Nueva Ecija, roughly 60 kilometers (37 mi) from Mount Pinatubo. This earthquake caused a landslide, some local tremors, and a brief increase in steam emissions from a preexisting geothermal area at Mount Pinatubo. [2] March–June 1991
Typhoon Yunya, known in the Philippines as Typhoon Diding, was a strong tropical cyclone whose landfall in the Philippines coincided with the 1991 eruption of Mount Pinatubo. A small tropical cyclone, Yunya rapidly developed from a tropical disturbance near East Samar on June 11. By June 13 the storm had reached typhoon status as it moved west ...
Map of responses by the USGS/OFDA Volcano Disaster Assistance Program. Location Year Disaster Responses Mount Pinatubo, Philippines: 1991: Less than 5 years after its creation, in April of 1991, VDAP was called to assist the Philippine scientists of the Philippine Institute of Volcanology and Seismology or PHIVOLCS during unrest at Pinatubo volcano.
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 ...
June 10 – About 15,000 Americans are evacuated from Clark Air Base as Pinatubo eruption begins. [9] [10] [11] [12]June 15 – Mount Pinatubo erupts, the peak of series of major explosions on June 12–16, in what will be the second largest terrestrial eruption of the 20th century; [9] [13] [14] volcano's alert level has been raised to the highest, June 9; Typhoon Yunya further worsens lahar ...
Location of Mount Pinatubo, showing area over which ash from the 1991 eruption fell. Satellite measurements of ash and aerosol emissions from Mount Pinatubo. MLO transmission ratio - Solar radiation reduction due to volcanic eruptions
The eruption column of Mount Pinatubo on June 12, 1991, three days before the climactic eruption View to the west from Clark Air Base of the major eruption of Pinatubo on June 15, 1991. The June 15–16 climatic phase lasted more than fifteen hours, sent tephra about 35 km (22 mi) into the atmosphere, generated voluminous pyroclastic flows ...