Science, Discovery, Tech and Environment · 4 May 2026

Philippine Institute of Volcanology and Seismology (Phivolcs) raises Alert Level 3 as Mayon Volcano erupts

Exam-focused facts from the 4 May 2026 current affairs briefing.

Key facts

  • The Philippine Institute of Volcanology and Seismology (Phivolcs) reported strombolian activity and short-lived lava fountaining from Mayon Volcano, one of the Philippines' most active volcanoes.
  • Nearly 1,500 families were evacuated to relief centres after the eruption, according to the Department of Social Welfare and Development.
  • Phivolcs recorded 32 volcanic earthquakes within 24 hours and maintained a permanent danger zone within a six-kilometer radius of the volcano's crater.
  • The Civil Aviation Authority issued a flight safety advisory imposing airspace restrictions above Manila due to potential hazards from volcanic ash and airborne particles.
  • Mayon, the most active among the Philippines' 24 volcanoes, has erupted nearly 50 times in the last four centuries, with its most destructive eruption in February 1841 killing 1,200 people.