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Mayon rumbles with 12 volcanic quakes, 3 rockfalls

May 14, 2011 8:38am

Restive Mayon Volcano in Albay continued to show renewed activity with at least 12 volcanic quakes and three rockfalls in the last 24 hours.

The Philippine Institute of Volcanology and Seismology (Phivolcs), in its Saturday update, also noted "weak to moderate" steaming activity from the volcano.

"Mayon Volcano’s seismic network recorded 12 volcanic earthquakes and three rockfall related events during the past 24 hours. Steaming activity was weak to moderate with white steam drifting to various directions. Crater glow was observed at Intensity II (can be seen by the naked eye) Friday night," it said.

Phivolcs said Alert Level 1 is still in effect over Mayon Volcano.

It said that while no eruption is imminent, the public still should not enter the 6-km radius Permanent Danger Zone (PDZ) due to the continuing threat from sudden small explosions and rockfalls from the upper and middle slopes of the volcano.

"Active stream/river channels and those perennially identified as lahar prone areas in the southern sector should also be avoided especially during bad weather conditions or when there is heavy and prolonged rainfall," it said.

11 quakes at Bulusan

In Sorsogon, 11 volcanic quakes were recorded at Bulusan Volcano.

"Steaming activity at the active vents ranged from wispy to moderate with white steam drifting to the southwest direction," it added.

Phivolcs said Bulusan's status remains at Alert Level 1, meaning the source of activity is hydrothermal and shallow.

Entry to the 4-km radius PDZ is strictly prohibited, since the area is at risk to sudden steam and ash explosions.

5 quakes at Taal

Meanwhile, five volcanic earthquakes were detected at Taal Volcano in Batangas during the past 24 hours.

Alert Level 2 is still in effect over Taal Volcano, even as Phivolcs reminded the public the Main Crater, Daang Kastila Trail and Mt. Tabaro are strictly off-limits because sudden hazardous steam-driven explosions may occur and high concentrations of toxic gases may accumulate.

Phivolcs also maintained the entire Volcano Island is a PDZ, and permanent settlement in the island is strictly not recommended. — LBG, GMA News
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