PHIVOLCS TAAL Volcano Bulletin 16 July 2021 8:00 AM
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In the past 24-hour period, the Taal Volcano Network recorded twenty-two (22) volcanic earthquakes, including eighteen (18) volcanic tremor events having durations of one (1) to eleven (11) minutes, four (4) low frequency volcanic earthquakes, and low-level background tremor that has persisted since 07 July 2021. High levels of volcanic sulfur dioxide or SO2 gas emissions and steam-rich plumes that rose one thousand five hundred (1,500) meters before drifting southeast and southwest were generated from the Taal Main Crater. Sulfur dioxide (SO2) emission averaged 1,142 tonnes/day on 15 July 2021. Based on ground deformation parameters from electronic tilt, continuous GPS and InSAR monitoring, Taal Volcano Island has begun deflating in April 2021 while the Taal region continues to undergo very slow extension since 2020.