Philippines’ Bulusan Volcano erupts, spewing ash 4.5km high
Before the eruption early on Monday morning, researchers had recorded 53 volcanic earthquakes over a 24-hour period

The Philippine Institute of Volcanology and Seismology (Phivolcs) raised Bulusan’s alert status from 0 to 1 on its five-level scale, signalling low-level volcanic unrest and warning of possible phreatic eruptions.
Before the eruption, which occurred between 4.36am and 5am on Monday, the institute had recorded 53 volcanic earthquakes over a 24-hour period and local officials reported rumbling sounds.
Phivolcs also urged vigilance within an extended 2-km danger zone on the volcano’s southeast sector due to the risk of rocks and other debris being ejected by the volcano, as well as rockfalls and avalanches.

Civil aviation authorities were advised to warn pilots against flying close to Bulusan’s summit.