It is located between 116° 40', and 126° 34' E. longitude and 4° 40' and 21° 10' N. latitude and borders the Philippine Sea on the east, the South China Sea on the west, and the Celebes Sea on the south.found in the Philippines.Most of the mountainous islands are covered in tropical rainforest and volcanic in origin. Here are the list of volcanoes found in the island of Philippines


Dequey (Undersea), is an unnamed submarine volcano near Dequey island in the Philippines.


The volcano is located 3 kilometres (2 miles) due west of Dequey island (geocode +20.3333, +121.7833), one of the Batanes Islands, in the province of Batanes, in the Cagayan Valley Region, in the Philippines, within the Luzon Strait between Luzon and Taiwan.
It is located at the southernmost end of the Batanes Islands at latitude 20.33°N (20°20'0"N), longitude 121.75°E (121°45'0"E).

Physical features
The volcano is a submarine volcano rising to within 24 metres of the sea surface.
It is one of the active volcanos in the Philippines.


Submarine eruptions reported in 1773, 1850, and 1854 are likely to have originated from this volcano.
There have been no further reports since 1854.

Subregion Name:North of Luzon (Philippines)
Volcano Number:0704-05=
Volcano Type:Submarine volcano
Volcano Status:Historical
Last Known Eruption:1854 
Summit Elevation:-24 m- 79 feet
Latitude:20.33°N 20°20'0"N


The Global Volcanism Program lists it as an unnamed historically active volcano. Philippine Institute of Volcanology and Seismology (PHIVOLCS) lists 22 active volcanoes in the Philippines, but has not included this unnamed volcano, or any volcanic activity at this geographical location.

Volcanos of the Philippines are all part of the Pacific ring of fire.

Coordinates: 20°20′N 121°45′E / 20.33°N 121.75°E