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 ( ivv, Kavahayan nu Sabtang; tl, Bayan ng Sabtang), is a 6th class municipality in the province of Batanes, Philippines. According to the 2020 census, it has a population of 1,696 people. The south ...

and is separated by a deep

channel Channel, channels, channeling, etc., may refer to: Geography * Channel (geography), in physical geography, a landform consisting of the outline (banks) of the path of a narrow body of water. Australia * Channel Country, region of outback Austral ...

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 safe landing place on the island. The shores on both sides of the channel are bordered by reef. 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 the early survey by the U.S. Geodetic Survey 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 ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

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 is an area of 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. Cliffs are common on co ...

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, ; tl, Surian ng Pilipinas sa Bulkanolohiya at Sismolohiya) is a Philippine national institution dedicated to provide information on the activities of volcanoes, earthquakes, 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 geologic landform that rises from the ocean floor that does not reach to the water's surface (sea level), and thus is not an island, islet or cliff-rock. Seamounts are typically formed from extinct volcanoes that rise abru ...

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