Volcanic Advisory

Kanlaon Volcano’s seismic monitoring network recorded four (4) volcanic earthquakes during the past 24 hours. Sulfur dioxide (SO₂) emission was measured at an average of 60 tonnes/day on 20 March 2019. Ground deformation data from latest continuous GPS measurements indicates slight deflation of the edifice.

Alert Level 1 (abnormal) status prevails over Kanlaon Volcano, which means that it is currently in a state of unrest probably driven by hydrothermal processes that could generate steam driven or phreatic eruptions. The local government units and the public are reminded to avoid entry into the 4-kilometer radius Permanent Danger Zone (PDZ) due to perennial hazards of rockfalls, avalanches, sudden outgassing and steam-driven or phreatic eruption at the summit area. Civil aviation authorities must also advise pilots to avoid flying close to the volcano’s summit as ejecta from any sudden phreatic eruption can be hazardous to aircraft. DOST-PHIVOLCS is closely monitoring Kanlaon Volcano’s activity and any new development will be relayed to all concerned.