MAYON VOLCANO BULLETIN 1 August 2015 8:00 A.M. PDF Print
Saturday, 01 August 2015 07:58

Mayon Volcano’s seismic monitoring network did not detect any volcanic earthquake during the past 24 hours. Weak to moderate emission of white steam plumes that crept downslope towards southwest and south-southeast was observed. The summit was visible but no crater glow was observed last night.  Precise leveling surveys on July 14-20, 2015 indicated a slight inflation of the edifice relative to the May 2015 surveys.

Mayon Volcano’s alert status is currently at Alert Level 2. This means the volcano is at a moderate level of magmatic unrest. Although the volcano is currently exhibiting low-level of seismic activity, ground deformation data indicates that eruptible magma had already accumulated the previous year beneath the edifice. Current conditions may still change and eventually lead to hazardous eruption. The public is still reminded to avoid entry into the 6-km Permanent Danger Zone or PDZ due to perennial hazards of rockfalls, avalanche, ash puffs and sudden steam-driven or phreatic eruptions at the summit area. Furthermore, people living in valleys and active river channels are cautioned to remain vigilant against sediment-laden streamflows and lahars in the event of prolonged and heavy rainfall. PHIVOLCS-DOST is closely monitoring Mayon Volcano’s activity and any new development will be immediately posted to all concerned.