Bulusan, Philippines : four-minute eruption.

Bulusan, Philippines :  four-minute eruption.

Bulletin February 25, 2016 8:00.

This is a notice of increasing seismic activity of Bulusan Volcano. A total of forty-nine (49) volcanic earthquakes were recorded by the seismic monitoring network during the past 24 hours. The increased seismic activity may be precursory to minor steam-driven or phreatic eruptions occurring at the currently active west-northwest, northwest, southwest or summit vents, based on past behavior of the volcano. Steaming activity could not be observed due to thick clouds covering the summit.

Ash soars above Bulusan volcano after a recent blast. The Philippines’ Bulusan volcano spewed ash high above the south end of Luzon Island in a blast fueled by a buildup of steam inside the towering mountain. The four-minute eruption was the first since a blast last June produced a similar ash plume.

Precise leveling survey results from December 2-7, 2015 indicated slight inflationary changes of the volcano’s edifice relative to September 2015, consistent with ground deformation measurements from continuous GPS data since August 2015.

Alert Level 1 (abnormal) remains in effect over Bulusan Volcano.

February 26, 2016. Bulusan, Philippines :

Sources : Phivolcs , EARTHWEEK

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