By Ellalyn V. Ruiz
Sulfur dioxide emitted by Mayon Volcano has significantly reduced but the alert status remains at level 4.
Sulfur dioxide emission tends to increase through time as magma degasses with increasing rates as it moves up from great depths beneath the volcano, the Philippine Institute of Volcanology and Seismology said.
However, based on the Phivolcs 24-hour monitoring, sulfur dioxide emission was measured at an average of 336 tons per day since Feb. 9, significantly lower than the 2,525 tons per day last Feb. 7.
Phivolcs added that Mayon Volcano’s activity in the past 24 hours was characterized by near continuous lava fountaining, lava flow, and degassing from the summit.