As lava flows and pyroclastic density currents from Albay's restive Mayon Volcano continued, the Philippine Institute of Volcanology and Seismology (Phivolcs) said on Sunday that there is no need to expand the current six-kilometer-radius permanent danger zone.
According to Mariton Bornas, chief of the Phivolcs volcano monitoring and eruption prediction section, increasing the six-kilometer permanent danger zone is still not a possibility because pyroclastic density currents are still present.
Mayon's unusual behavior is expected to last three months, according to her.
Bornas added that the state volcanologists have yet to notice any changes in the overall monitoring parameters.
At 8:00 a.m. on Sunday, Phivolcs data showed that lava flows had progressed to 2,700 meters and 1,300 meters, respectively, along the Mi-isi and Bonga valleys.
She stated that the Phivolcs team recorded major pyroclastic density currents on Friday, which comprised hot ashes, pebbles, and volcanic gas movement.
