MAYON VOLCANO

Summary of 24Hr Observation

(from 12AM yesterday to 12AM today)

Date: 04 May 2026

(Intensified Unrest / Magmatic Unrest)

ALERT LEVEL

3

Date: 04 May 2026

ALERT LEVEL

(Intensified Unrest / Magmatic Unrest)

3

PARAMETERS

antas ng tubig

Eruption

Lava effusion with lava flow on Basud (3.8 km), Bonga (3.2 km) and Mi-isi (1.6 km) gullies

antas ng tubig

Seismicity

5 volcanic earthquakes including 4 volcanic tremors (1-3 minutes long); 411 Rockfall and 4 pyroclastic density current signals

Banaag
Crater glow

Fair (naked eye)

SO2

Sulfur Dioxide Flux

1829 tonnes / day (03 May 2026)

Plume
Plume

Moderate emission; west-southwest drift

ground deformation
Ground Deformation

Short-term deflation of the edifice with shorter-term inflation on the northeastern flank

static map
Earthquake Location:
Past 24 hours
Past 2 weeks
Earthquake Location:
Past 24 hours
Past 2 weeks
Total no. of volcanic earthquake: 5 Total no. w/ enough record for location: 0

RECOMMENDATION/COMMENT

Should not be allowed

  • Entry into 6-kilometer radius Permanent Danger Zone (PDZ)
  • Flying any aircraft close to the volcano

Reminder

Possible hazards that can occur:

  • Rockfalls or landslides or avalanches
  • Ballistic fragments
  • Lava flows and lava fountaining
  • Pyroclastic density currents
  • Moderate-sized explosions
  • Lahars during heavy and prolonged rainfall
Location of Mayon Volcano: Province of Albay
Additional information on the website: