The Civil Aviation Authority of the Philippines (CAAP) prohibited flights near Mayon Volcano on Tuesday after increased volcanic activity prompted aviation safety measures.
In a Notice to Airmen (NOTAM), CAAP restricted aircraft operations from the surface up to 11,000 feet around the volcano beginning 3:45 a.m. on July 14 until 3:12 a.m. on July 15.
The agency advised pilots and flight operators to avoid the area while Mayon remained under Alert Level 3.
The flight restriction came after the volcano produced an eruptive event between 6:31 a.m. and 6:46 a.m. on Tuesday.
The eruption also caused light to moderate ashfall in several municipalities in Albay, according to monitoring reports.
The Philippine Institute of Volcanology and Seismology (Phivolcs) said Mayon’s effusive eruption had continued for 190 consecutive days, with ongoing lava effusion, incandescent lava falls, and rockfalls.
Phivolcs maintained Alert Level 3 over the volcano, indicating sustained magmatic unrest and the possibility of hazardous eruptive activity.
The agency reiterated that the public must not enter the 6-kilometer Permanent Danger Zone because of the risks posed by lava flows, rockfalls, pyroclastic density currents, and sudden explosions.
