The Mayon volcano in the Philippines has spewed ash several times over the weekend, forcing authorities to evacuate two villages in its vicinity and raise the threat level, warning of potential "hazardous magmatic eruptions".
PHIVOLCS further said the public should refrain from entering the 6-kilometer radius of the Permanent Danger Zone (PDZ) to minimize risks from sudden explosions, rockfall, and landslides.
Earlier in the day, Phivolcs observed that the cause of the restiveness could be magmatic which may lead "to more phreatic eruptions or eventually to hazardous magmatic eruptions".
The Mayon Volcano once again spewed "ash plume" at 11:43 a.m that lasted for about 15 minutes based on seismic record, Phivolcs said in its 3:30 p.m. advisory.
RESTIVE AND HIDING - Mayon Volcano is covered in thick clouds, rendering the crater and ash it emitted yesterday morning not visible to observers.
PHIVOLCS said traces of ash fell on Barangay Anoling in Daraga, Barangays Sua, Quirangay, Tumpa, Ilawod, Salugan of Camalig, and Barangays Tandarora, Maninila, and Travesia in Guinobatan. The institute advised people near ashfall to cover their noses and mouths with a damp, clean cloth or dust mask.
Civil aviation authorities were told to advise pilots against flying near the summit due to the danger of erupting ash, which can be hazardous to aircraft.
Residents evacuated amid Mount Mayon eruption warning
Lava began rising to the crater of Mount Mayon, the Philippines' most active volcano, in a gentle eruption on Sunday.
People living outside the danger zone have been warned to take precautions against potential roof collapses due to the weight of ash and rainfall.
Phivolcs chief Renato Solidum said the volcano appeared due for another major eruption as it has been displaying abnormal behaviour since late past year.
PIVS has confirmed at least 158 rockfalls since Mayon reawakened and have expanded the volcano's "danger zone" to a 7km radius.
Despite this, Cedric Daep, head of the Albay Provincial Disaster Risk Reduction and Management Office, said people in evacuation centres may be allowed to return home later today, unless Phivolcs raised the volcano alert level further.
"We call on the people directly affected by the eruption of Mt Mayon to cooperate with their respective LGUs (local government units) in order for us to avoid injuries or casualties", Presidential Communications Secretary Martin Andanar said.