Mayon Volcano alert level lowered


Posted at Feb 12 2016 01:10 PM

MANILA - The alert level for Mayon Volcano in Albay has been lowered, according to the Philippine Institute of Volcanology and Seismology (Phivolcs).

In a bulletin issued 8 a.m. Friday, Phivolcs said the alert status of Mayon has been lowered from alert level 1 (abnormal) to alert level 0 (normal).

Phivolcs cited a decline in the frequency of volcanic quakes in the last six months, which indicates that magmatic activity has diminished.

Crater glow has also not been observed since 2015.

Moreover, steam activity from the crater has ranged from weak to moderate, and sulfur dioxide emission has also stabilized since November last year.

"The absence of crater glow and other anomalies at the summit is consistent with the passive degassing and cooling of stored magma beneath the edifice," Phivolcs said.

With the observational parameters returning to baseline levels, Phivolcs said no magmatic eruption is foreseen in the immediate future.

However, the public is still reminded to avoid entry into the 6-kilometer permanent danger zone due to hazards of rockfalls, avalanches, ash puffs and sudden steam-driven eruptions at the summit area.

Residents in valleys and active river channels are also cautioned to remain vigilant against sediment-laden streamflows and lahars in the event of prolonged and heavy rainfall.