Mayon belches steam

ABS-CBN News

Posted at May 17 2017 12:24 PM

Steam plumes rise from the crater of Mayon Volcano. Karla Thea Omelan, ABS-CBN News

MANILA - Mayon Volcano in Albay province emitted steam early Wednesday, the Philippine Institute of Volcanology and Seismology said.

In a bulletin, Phivolcs said moderate white steam plumes were observed in the volcano's crater at 6:06 a.m.

The steam plumes are not a cause for concern because increased volcanic activity is generally indicated by gray or dark steam plumes, the seismological office told ABS-CBN News.

Phivolcs added that the steam may have been caused by a drop in temperature due to persistent rains or a decrease in the pressure at Mayon's summit.

Alert Level 1 however was still hoisted over Mayon, prohibiting entrance to the 6-kilometer radius Permanent Danger Zone.

State seismologists said they want to ensure that all parameters are normal before downgrading the alert level.

Phivolcs said it has been keeping a tight watch on the volcano after several rock fall events were monitored there last week.

Mayon's last volcanic activity was recorded in 2014. -- With a report from Karla Thea Omelan, ABS-CBN News