The Philippine Institute of Volcanology and Seismology (Phivolcs) said a total of 150 rockfall events were recorded at Mayon ...
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Watch: Mayon Volcano sheds pyroclastic density currents or 'uson'
Mayon Volcano in Albay continued to shed pyroclastic density currents (PDC) or 'uson' on Friday, the Philippine Institute of ...
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