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Magma activity inside Taal continues as Phivolcs records 18 tremors in one day

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Christian Fernsby ▼ | February 5, 2020
Eighteen harmonic tremors, or prolonged shaking, were recorded in the past day around Taal volcano, the Philippine Institute of Volcanology and Seismology (Phivolcs) said today.
Taal volcano
Volcano in the Philippines   Taal volcano
Phivolcs stated in its bulletin that the Taal Volcano Network listed 156 volcanic earthquakes, including 2 low-frequency events and 18 harmonic tremors that lasted from 1 to 3 minutes.

Topics: Taal

According to United States Geological Survey (USGS), a harmonic tremor is a “continuous rhythmic earthquake that often accompanies volcanic eruptions.” It is a long-duration release of seismic energy that indicates underground movement of magma.

“These earthquakes signify magmatic activity beneath the Taal edifice that could lead to eruptive activity at the main crater,” Phivolcs said.


 

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