PHIVOLCS reported that unrest continued at Bulusan during 22-28 June.
Emissions rose 100-400 m above the summit and drifted NW and W; cloudy weather prevented views of the volcano on 26 June.
Sulfur dioxide emissions were 559-751 tonnes per day during 22-26 June.
The seismic network recorded 7-65 daily volcanic earthquakes.
A small-volume lahar was detected during a thunderstorm, beginning at 1904 on 26 June and lasting for 54 minutes based on seismic and infrasound data.
Narrow, channel-confined lahar deposits were seen later along the Calang Creek on the SW flank, in the Cogon barangay.
The Alert Level remained at 1 (on a scale of 0-5) and PHIVOLCS reminded the public not to enter the 4-km-radius Permanent Danger Zone (PDZ) nor the 2 km Extended Danger Zone (EDZ) on the SE flank.
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
Bulusan (Philippines)
