In 2014, there was also growth of a lava dome, with a 'short-lived dome collapse and lava flow activity,' but 'no explosive activity occurred.' MayonVolcano
to its 2014 eruption, and said this level of activity “may persist for a few months,” with Alert Level 3 maintained.since June 8, when the Philippine Institute of Volcanology and Seismology began observing “small-volume” pyroclastic density currents from the volcano’s summit lava dome, “signaling the start of an effusive magmatic eruption.”
An effusive eruption, meanwhile, is an eruption “dominated by the outpouring of lava onto the ground…as opposed to the violent fragmentation of magma by explosive eruptions,” according to Phivolcs. The “sluggish lava flows and intermittent collapse of the summit lava dome” led to “frequent rockfall and occasional small-volume PDCs” within the 6-kilometer-radius permanent danger zone around the volcano.
“SO2 emission also slightly increased beyond background levels of 500 tons per day, but still remained well below past eruption records of several thousand tons per day. Volcanic earthquakes also slightly increased in incidence but remained very weak,” added Phivolcs.In 2014, Mayon’s eruption lasted from August 14 to November 1 or around two and a half months, Phivolcs said.
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