Kanlaon Volcano Update

Since its last phreatic eruption on 15 June 2016, Kanlaon exhibited a general decline of monitoring parameters to normal/baseline values as detailed below, indicating a return to normalcy. The frequency of volcanic earthquakes recorded by the Kanlaon’s seismic monitoring network is within the baseline levels.

Measurements from continuous GPS data as of 15 April 2017 showed no significant deformation in the volcano’s edifice since August 2016. Prior to August 2016, the edifice was slightly inflated relative to the level on December 2015. Overall, the ground deformation data do not reflect substantive pressure build-up within the volcano.

Since September 29, 2016, no steaming activity has been observed from the summit crater.
In view of the above observations, PHIVOLCS is now lowering the alert status of Kanlaon Volcano from Alert Level 1 to Alert level 0.

This means that observational parameters have returned to baseline levels and no magmatic eruption is foreseen in the immediate future. However, in the event of a renewed increase in any one or combination of the above monitoring parameters, the alert status may step up once again to Alert Level 1. The public is still 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. PHIVOLCS-DOST is closely monitoring Kanlaon’s condition and any new development will be immediately communicated to all concerned.