Ivuhos (also known as Ibugos, Ibujos, Vuhus and Ibahos Island) is one of the islands of Batanes, the northernmost province of the Philippines. The uninhabited island is located west of

Sabtang Island Sabtang, officially the Municipality of Sabtang (; Ilocano: ''Ili ti Sabtang''; ), is a municipality in the province of Batanes, Philippines. According to the 2020 census, it has a population of 1,696 people. Sabtang is the southernmost island ...

and is separated by a deep channel nearly wide. Ivuhos Island is small and rather low, except a hill on the south end. A coral beach before the hill on the eastern side is the only viable landing spot on the island. The shores on both sides of the channel are bordered by reefs. The flood tide sets southward with a velocity from 3 to 4 knots, and the ebb northward.

People

The island is currently uninhabited,"About Batanes"
. Batanes Official Website. Retrieved on 2011-06-03. but a survey performed by the US Geodetic Service in the early 1900s found a settlement near the south end of the island.U.S. Coast and Geodetic Survey. "United States Coast Pilot, Vol. 1", p.40. Washington Government Printing Office, 1919.

Geology

The island of Ivuhos consists entirely of coral

limestone Limestone is a type of carbonate rock, carbonate sedimentary rock which is the main source of the material Lime (material), lime. It is composed mostly of the minerals calcite and aragonite, which are different Polymorphism (materials science) ...

rising in steep cliffs to a height of over . These surround the island, except on the eastern side where the land rises gently from the fringe of sand dunes and small ponds around the shore, in contrast to the

agglomerate Agglomerate (from the Latin ''agglomerare'' meaning "to form into a ball") is a coarse accumulation of large blocks of volcanic material that contains at least 75% bombs. Volcanic bombs differ from volcanic blocks in that their shape records flui ...

cliff In geography and geology, a cliff or rock face is an area of Rock (geology), rock which has a general angle defined by the vertical, or nearly vertical. Cliffs are formed by the processes of weathering and erosion, with the effect of gravity. ...

s of the island of Sabtang less than distant. The surface of Ibujos is gently rolling, but without any streams or definite stream valleys. This condition is partly due to the solubility of the rock which allows water to run off in underground channels, but it is also in large part an effect of the recent date of the uplift which formed the island, which has not allowed sufficient time for the streams to form valleys. The soil seems to be volcanic ash rather than limestone. The

Philippine Institute of Volcanology and Seismology The Philippine Institute of Volcanology and Seismology (PHIVOLCS, ; ) is a Philippine national institution dedicated to provide information on the activities of volcanoes, earthquakes, and tsunamis, as well as other specialized information and ...

(PHIVOLCS) classified Ivujos Island (listed as Ibahos Island) as an inactive volcano of the Philippines.(2008-07-30)
"Inactive volcanoes of the Philippines, Part 3"
PHIVOLCS. Retrieved on 2011-06-03. An unnamed submarine volcano is located west of Ivujos, which last erupted in 1854. The

seamount A seamount is a large submarine landform that rises from the ocean floor without reaching the water surface (sea level), and thus is not an island, islet, or cliff-rock. Seamounts are typically formed from extinct volcanoes that rise abruptly a ...

rises to just below the water surface."Unnamed Volcano"
. Global Volcanism Program. Retrieved on 2011-06-03.

References

{{Authority control Islands of Batanes Uninhabited islands of the Philippines Inactive volcanoes of the Philippines Volcanoes of the Luzon Strait

People

Geology

See also

References