Didicas Volcano
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Didicas Volcano is an active volcanic island in the province of Cagayan in northern Philippines. The island, which was a
submarine volcano Submarine volcanoes are underwater vents or fissures in the Earth's surface from which magma can erupt. Many submarine volcanoes are located near areas of tectonic plate formation, known as mid-ocean ridges. The volcanoes at mid-ocean ridges ...
and re-emerged from the sea in 1952, is NE of Camiguin Island, one of the Babuyan Islands in Luzon Strait. Before 1952, the volcano first breached the ocean surface in 1857.Villamor, Ignacio. "Census of the Philippine Islands, 1918, Vol. I", p. 112. Manila Bureau of Printing, 1920.


Physical features

Didicas is topped with a
lava dome In volcanology, a lava dome is a circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano. Dome-building eruptions are common, particularly in convergent plate boundary settings. Around 6% of eruptions on ...
with an elevation of and a base diameter of at sea level. It is at the southern end of the Luzon Volcanic Arc, and like all the volcanoes in the Philippines, is part of the Pacific ring of fire.


Eruption history

There have been six historical eruptions recorded from the volcano since the 18th century. *1773: The first recorded submarine eruption from the volcano, on what was known as Didicas reefs of the Farallones. *1856 September or October: The first activity started as a column of "smoke" in between the two rocks well known to the locals, but no earthquakes were felt. *1857: The volcano erupted violently, attended by earthquakes, then broke the surface of the sea. From then to 1860, the volcano was constantly active and in four years had reached a height of . The island was later washed out by the waves and disappeared beneath the sea.U.S. Bureau of Insular Affairs. "Description of the Philippines, Part 1", p. 39. Manila Bureau of Printing, 1903.U.S. Coast and Geodetic Survey. "United States Coast Pilot Philippine Islands, Part I", p.44. Washington Government Printing Office, 1919. *1900: An eruption left three rock masses up to high. *1952: The volcano broke the ocean's surface again during an eruption that started around March 16. *1953: The activities subsided. The resulting island is wide with an elevation of . *1969: First known fatalities from the volcano: three fishermen were killed while fishing near the volcano. The activity, which started on March 21, came from a new crater on the northern side of the island. Air reconnaissance over the volcano reported bubbling mud on the wide bottom of the crater. Activity on the volcano waned in June the same year. *1978 January 6 to 9: The last eruption of Didicas to date. The mild eruption blanketed the island with fresh volcanic ashes.


See also

* List of active volcanoes in the Philippines * List of potentially active volcanoes in the Philippines * List of inactive volcanoes in the Philippines * Philippine Institute of Volcanology and Seismology


References


External links


"Didicas Volcano Page"
at the Philippine Institute of Volcanology and Seismology (PHIVOLCS). {{DEFAULTSORT:Didicas Stratovolcanoes of the Philippines Subduction volcanoes Volcanoes of the Luzon Strait Mountains of the Philippines Active volcanoes of the Philippines Landforms of Cagayan Holocene stratovolcanoes