More rockfall and pyroclastic density current events as well as sulfur dioxide emission were observed over Mayon Volcano, the Philippine Institute of Volcanology and Seismology (PHIVOLCS) said Friday.
Mayon Volcano had seven dome-collapse pyroclastic density current (PDC) events that lasted three minutes, the Philippine Institute of Volcanology and Seismology (PHIVOLCS) said on Wednesday. This is ...
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