LUZON VOLCANOES REMAIN RESTIVE

Volcanoes in northern Philippines continue to be restive as more seismic activity was detected at Taal Volcano — the world-renowned smallest volcano located just south of Manila. Meanwhile, activity in Bulusan and Mayon volcanoes,...

By Guil Franco (Our Correspondent)

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Published: Fri 21 Apr 2006, 1:47 PM

Last updated: Sat 4 Apr 2015, 4:23 PM

which are found in southern Luzon, has persisted but at a decreasing rate.

The Philippine Institute of Volcanology and Seismology (Philvocs) has recorded five high-frequency earthquakes at Taal, a phenomenon that has not happened in the last decade. Agnes Aguilar, supervising science-research specialist for Philvocs, said the activity was not normal since seismic movements in the volcano have not been recorded at that rate.

"We believe that Taal has resumed activity. Usually we do not record quakes that high," Aguilar said, adding that Taal has remained dormant for so many years until this week. Previous activity was considered normal. Last week, Philvocs registered 16 high-frequency volcanic earthquakes in the main crater. However, Alert Level 1 status has not been raised and only the main crater remains off-limits to the public. At Bulusan Volcano, Philvocs recorded six high-frequency volcanic earthquakes that were accompanied with white steam rising as high as 150 metres from the mouth of the vocano. Aguilar said the white steam, or sulfur dioxide emission, from Bulusan has decreased from a normal of 4,000 tonnes a day to 712 tonnes.


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