Seven more volcanic earthquakes were recorded from Mayon Volcano over a 24-hour period, the Philippine Institute of Volcanology and Seismology (Phivolcs) said in its Sunday morning bulletin for the volcano.
Volcanic earthquakes are caused by movements or eruptions of magma from the volcano.
In its Saturday morning bulletin, Phivolcs recorded at least 27 volcanic earthquakes from Mayon Volcano over a 24-period, and at least 10 tremors on Wednesday, and two on Tuesday.
Phivolcs is still maintaining Alert Level 1 (abnormal) over Mayon Volcano.
“Although this means that presently, no magmatic eruption is imminent, it is strongly advised that the public refrain from the 6-kilometer radius permanent danger zone due to life-threatening dangers of rockfalls, landslides at middle to upper slope, sudden ash puffs and steam-driven phreatic eruptions from the summit,” Phivolcs said.
Moreover, active stream or river channels, and those identified as perennially lahar-prone areas on all sectors of the volcano should be avoided, especially during extreme weather conditions, it added.
The most recent eruption of Mayon Volcano was in January 2018, causing Phivolcs to raise Alert Level 4. SOVEREIGNPH