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In March 1991 and April 1991, magma rising 20 miles beneath the surface of the Pinatubo volcano caused many earthquakes and small explosions, which destroyed parts of the volcano. Then on June 12, 1991, magma filled with gas reached the surface, and the volcano erupted.


The eruption of Mount Pinatubo in 1991 was the second largest volcanic eruption of the 20th century. The eruption released a huge volume of volcanic ash and sulfur dioxide into the atmosphere. This caused the planet to experience a global cooling in the following year a...


Mount Pinatubo is an active stratovolcano, or a cone-shaped volcano, that is made from many layers of hardened ash, lava and other volcanic rock. Stratovolcanoes are also called composite volcanoes.


Mount Pinatubo is a stratovolcano. Stratovolcanoes are the most deadly type of volcano, and they are recognizable by their sharp rise and steep slopes.


Mount Vesuvius' last eruption was in March of 1944. The eruption destroyed the villages of San Sebastiano al Vesuvio, Massa di Somma, Ottaviano, and part of San Giorgio a Cremano.


The first recorded eruption of Mount Fuji occurred in the year 781, and it has erupted 16 times since then, with the last recorded eruption occurring in 1707. Mount Fuji is currently classified as dormant, but eruption is possible again at some point in the future. Curr...


Mount Etna erupts and is active because it lies on the subduction fault boundary between the African and Eurasian tectonic plates as well as the fault between the African and the Ionian microplate. The Ionian plate is tilted backward, allowing space for mantle magma to ...