Hibok-Hibok volcano eruptions

stratovolcano 1552 m / 5,092 ft
Mindanao (Philippines), 9.2°N / 124.67°E
Eruption list: 1948-53, 1871-75, 1862, 1827


1948-1953 eruption of Hibok-Hibok volcano

A significant eruption started on 1 September 1948. A large explosion from the summit crater of Hibok-Hibok volcano, preceded by a week of intense earthquakes. The explosion created a cauliflower-shaped eruption plume and produced devastating pyroclastic flows and lahars down the NE side of the volcano. 8 suare km land were invaded and destroyed. In May 1949, a new lava dome started to grow in the crater.
The new lava dome continued to grow during the next 2 years dome and had become a prominent feature by late 1951. On 4 December 1951 pyroclastic flows went down the NE flank of the mountain and reached the outskirts of Mambajao town where 500 people were killed.
Large amounts of pumice and ash were found in the deposits, indicating that these pyroclastic flows were generated primarily by the explosion of fresh magma rather than dome collapse.
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Source: Gordon A. Macdonald and Arturo Alcaraz (1956) "Nuées ardentes of the 1948–1953 eruption of Hibok-Hibok", Bull. Volc, v.18(1), pp 169-178
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