It is a stratovolcano about a kilometer from Lake Buhi. It rises 1,196 m (3,924 ft) with a base diameter of 10 kilometres (6.2 mi).[1][2] It has a large crater formed due to a debris avalanche.
Mount Iriga, generally known for its phreatic explosions, erupted in 1628 and 1642.[2] After these eruptions, it remained dormant.
^ ab"Mount Iriga". Philippine Institute of Volcanology and Seismology (PHIVOLCS). Archived from the original on September 1, 2011. Retrieved September 17, 2011.