Minor steam-and-ash emissions that were observed from Canlaon during 13-15 June reached heights of 2 km above the summit (14,600 ft a.s.l.) and drifted primarily NE and NW. Light ashfall was observed on the volcano's upper N flanks and reached approximately 10 km E in Canlaon City. The alert status remained at Level 1, which restricted activity within 4 km of the summit.

Geological Summary. Kanlaon volcano (also spelled Canlaon) forms the highest point on the Philippine island of Negros. The massive andesitic stratovolcano is covered with fissure-controlled pyroclastic cones and craters, many of which are filled by lakes. The largest debris avalanche known in the Philippines traveled 33 km SW from Kanlaon. The summit contains a 2-km-wide, elongated northern caldera with a crater lake and a smaller but higher active vent, Lugud crater, to the south. Eruptions recorded since 1866 have typically consisted of phreatic explosions of small-to-moderate size that produce minor local ashfall.

Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)