Minor strombolian activity observed during Mayon’s 41st day of effusive eruptions

The Philippine Institute of Volcanology and Seismology (Phivolcs) recorded minor strombolian activity at the Mayon Volcano early Sunday morning.

According to a notice on Sunday, the eruptions were accompanied by seismic and infrasound signals when these were observed at the volcano’s summit crater at 5:20 a.m. and 5:28 a.m. on Sunday.

“Effusive eruption at Mayon Volcano continues for the 41st consecutive day, generating incandescent lava flows, pyroclastic density currents (PDC) or “uson”, and rockfall,” the notice read.

According to the United States National Park Service (NPS), strombolian eruptions are moderately explosive eruptions that come with balsatic magma and moderate gas content.

Such eruptions are often characterized with “intermittent, discrete explosive bursts” that ejected pyroclasts in “firework-like incandescent rooster-tails.”

Thirty-two barangays in Camalig and Guinobatan, Albay experienced heavy and occasionally wet to trace ashfall after Mayon Volcano generated the largest pyroclastic density current (PDC) or “uson” on Feb.10.

Mayon Volcano, located in the province of Albay, remains at Alert Level 3 or “high level of volcanic unrest” since it was first raised in January.

Entry into the 6-kilometer Permanent Danger Zone (PDZ) remains prohibited. —Jiselle Anne C. Casucian/RF, GMA Integrated News