RESTIVE. Mayon Volcano spews ash plume on Friday morning (March 8, 2019). It was the second time this week that a steam-driven eruption occurred showing the volcano is still restive, said the Philippine Institute of Volcanology and Seismology. (Photo by Ben Briones )
LEGAZPI CITY -- Mayon Volcano, for the second time this week, had a steam-driven eruption spewing on Friday morning a grayish ash plume 300 meters high from the volcano’s summit, the Philippine Institute of Volcanology and Seismology (Phivolcs) said on Friday.
The volcanic activity around 6:27 a.m. followed Thursday morning's eruption, which also sent into the atmosphere grayish ash plume that drifted southwest towards the towns of Camalig and Guinobatan, said Paul Alanis, Phivolcs senior science research specialist.
He said that the two eruptive episodes were “normal occurrence that signify the volcano is still restive.”
Phivolcs seismic monitoring network for the past 24-hours has recorded six volcanic earthquakes and two rockfall events. Two of the earthquakes were related to the steam-driven explosion that occurred on both days.
Alanis said the two steam-driven explosions were triggered by the volcano’s natural “degassing process.”
Phivolcs said fair crater glow continued to be observed at night while sulfur gas emission was measured at 988 tonnes per day.
Alert level 2 remains hoisted over Mayon Volcano, meaning the volcano is at a moderate level of unrest.
Phivolcs reiterated its warning to villagers against entering the six-kilometer danger zone and a precautionary seven-kilometer radius extended danger zone, stretching from the Anoling, Camalig to Sta. Misericordia, Sto Domingo.
Civil aviation authorities must also advise pilots to avoid flying close to the volcano’s summit as airborne ash and ballistic fragments from sudden explosions may pose hazards to aircraft. (PNA)