MANILA, Philippines — Mayon Volcano produced ash clouds on Sunday and has reached its 83rd day of effusive eruption, the Philippine Institute of Volcanology and Seismology (Phivolcs) said. READ: Mayon Volcano emits lava fountain The Phivolcs, in an advisory, said minor strombolian activities were recorded in Mayon Volcano at exactly 12:30 a.m. and 6:46 a.m.,
