A possible phreatic or steam eruption was reported from Mount Binuluan in 1952, during which a sulfur-rich debris flow killed a dozen people. Details about the eruption in 1952 are still scant. In 2007 and 2008, some 90- and 100-year-old elders in Brgy. Tulgao in Tinglayan said the loss of life in 1952 was caused by an eruption during a typhoon followed with the collapse of a natural earth bank below Sugo-oc fumarole field, high on the northern side of the Bunog River. The consequent mudslide buried a few houses below near the villages of Dananao and Sumadel, Tinglayan, killing maybe 12 people or thereabouts.