On the evening of 14 January, the Philippine Institute of Volcanology and Seismology (PHILVOLCS) raised Mayon Volcano’s alert level from II to III, signifying that Mayon has increased tendency towards hazardous eruption. On the morning of 15 January 2018, two lava collapse events occurred in the volcano, producing rockfall and small-volume pyroclastic density currents. Ash clouds were also produced with ashfalls reported in 29 villages (barangays) in the municipalities of Camalig and Guinobatan in the southwest of the volcano. Furthermore, on 16 January, lava flow and more rockfall events and short pyroclastic flows were also observed. PHILVOLCS recommended that the 6-km permanent danger zone and a 7-km extended danger zone be enforced due to the danger of rockfalls, landslides and sudden explosions or dome collapse that may generate hazardous volcanic flows. As a result of the heightened alert level, precautionary evacuations have been conducted in 25 villages (barangays) in 3 municipalities and 2 cities. As of 15 January, a total of 5,318 families (21,823 people) have been displaced, with 4,134 families (16,877) staying in 18 evacuation centres.
On 22 Jan 2018, alert level-4 (hazardous eruption imminent) was raised over Mayon Volcano located in Albay province. The danger zone was extended to an 8 km radius, up from a previous 7 km where local authorities were advised to prevent any human activity due to the danger of rockfalls, landslides and sudden explosions or dome collapse that may generate hazardous volcanic flows. As of 22 January, 7,900 families (30,000 people) have evacuated from seven Albay municipalities neighbouring Mount Mayon.
On 24 Jan 2018, the danger zone has been further extended to a 9 km radius. Around 60,500 people have been displaced and are sheltered in 52 evacuation centres or are being hosted by relatives and friends.
As of 29 January, nearly 90,000 people have been evacuated from their homes due to ongoing eruptions at Mount Mayon. The majority of displaced people are staying in 74 evacuation centres. Lack of drinking water, sanitation facilities, and hygiene and dignity kits have been noted in areas where evacuees are staying.
As of January 30, Alert level-4 (hazardous eruption imminent) remains in effect over Mayon Volcano. The volcano is showing high levels of continuing unrest, with lava fountains and frequent ash explosions occurring several times a day, according to the Philippine Institute of Volcanology and Seismology (PHIVOLCS)
According to the Department of Social Welfare and Development, 90,183 persons have been affected by the eruption, with 72,872 taking temporary shelter in 76 evacuation centers
Mayon Volcano remains on Level 4 alert. As of 5 February, 86,000 people are affected, with 65,000 people staying in 59 evacuation centres. A total of 57 schools and 91,300 students within the 6-9-kilometer danger zones are affected.