(Eagle News) — Four volcanic earthquakes were monitored at Mayon in 24 hours. Also monitored at the volcano, which remains on alert level 1, was sulfur dioxide emission, the Philippine Institute of Volcanology and Seismology said. PHIVOLCS said the emission was last measured at an average of 676 tons on December 29. “Overall, the Mayon edifice is still inflated with respect to baseline parameters,” PHIVOLCS said. It reminded the public that on alert level 1, […]