The sparsely-vegetated cinder cone is 688 meters (2,257 ft) high with a base diameter of 4.5 kilometers (2.8 mi).

[1] Layers of basaltic lava flows are evident south of the volcano.

Pangasun), an active stratovolcano with two well-preserved summit craters 300 and 400 m (980 and 1,310 ft) in diameter, located in the center of the island.

[2] Babuyan Claro is about 4.3 kilometers (2.7 mi) peak-to-peak southeast of Smith Volcano, which is the north-westernmost summit on the triangular-shaped island.

[3] A team of volcanologists from the Philippine Institute of Volcanology and Seismology (PHIVOLCS) Quick Response Team conducted an investigation on July 8, 1993 following reports of unusual volcanic activity at Babuyan Island.