Diogo Island known as Di'nem Island is an uninhabited
volcanic island
Geologically, a high island or volcanic island is an island of volcanic origin. The term can be used to distinguish such islands from low islands, which are formed from sedimentation or the uplifting of coral reefs (which have often formed ...
in the province of Batanes, the northernmost province in the Philippines. Also known as ''Di'nem'' Island in the native language, Diogo is a lone rock rising out of the sea, with steep cliffs on every side, and dangerous currents make landing there practically impossible. It is an
extinct volcano
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
On Earth, volcanoes are most often found where tectonic plates are ...
which has suffered heavily from marine erosion.
[Ferguson, Henry G. (1908-02)]
"The Philippine Journal of Science, Vol.3 Part 1"
p.12. Manila Bureau of Printing, 1908.
Geography
Diogo is a small, round island over high, about in diameter, lying southeastward of
Itbayat Island
Itbayat, officially the Municipality of Itbayat, ( ivv, Kavahayan nu Itbayat; tl, Bayan ng Itbayat), is a 5th class municipality in the province of Batanes, Philippines. According to the 2020 census, it has a population of 3,128 people.
Itbayat ...
. It is steep on the western side but has several small islets lying off the eastern side, the outermost being nearly distant.
Geology
In 1903, Diogo Island was observed to be volcanic, discharging vapor and dark material, but another observation in 1908 believe that those are small clouds which often hang around the mountain.
It is listed as an
inactive volcano
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
On Earth, volcanoes are most often found where tectonic plates are ...
by 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 ...
.
Previous names
In old Spanish maps, the name of the island was listed as ''Isla Diego'' or ''Rodonta''.
[Algué, P. José (1899)]
''Atlas de Filipinas"
p. 39. Washington Government Printing Office, 1900.
See also
*
List of islands of the Philippines
The islands of the Philippines, also known as the Philippine Archipelago, comprises about 7,641 islands, of which only about 2,000 are inhabited.[List of islands
This is a list of the lists of islands in the world grouped by country, by continent, by body of water
A body of water or waterbody (often spelled water body) is any significant accumulation of water on the surface of Earth or another plane ...](_bla ...<br></span></div>
* <div class=)
*
Desert island
A desert island, deserted island, or uninhabited island, is an island, islet or atoll that is not permanently populated by humans. Uninhabited islands are often depicted in films or stories about shipwrecked people, and are also used as stereot ...
References
{{Authority control
Volcanoes of the Luzon Strait
Inactive volcanoes of the Philippines
Islands of Batanes
Uninhabited islands of the Philippines