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Manila - The Philippines issued a level 1 volcano alert on Thursday after a steam explosion in the centre of the country.
The explosion at Mount Bulusan, about 250km south-east of Manila, "propelled an ash plume approximately 250 meters high before it drifted west," volcano authorities said.
Level 1 is the first on the 5-stage alarm system, and indicates some hydrothermal processes under the volcano.
A permanent exclusion zone eight kilometres wide is in force around Mount Bulusan, the fourth most active volcano in the Philippines, which has erupted 15 times since 1885, most recently in July 2014.
The explosion at Mount Bulusan, about 250km south-east of Manila, "propelled an ash plume approximately 250 meters high before it drifted west," volcano authorities said.
Level 1 is the first on the 5-stage alarm system, and indicates some hydrothermal processes under the volcano.
A permanent exclusion zone eight kilometres wide is in force around Mount Bulusan, the fourth most active volcano in the Philippines, which has erupted 15 times since 1885, most recently in July 2014.
