The Taal Volcano in Batangas is in “increasing unrest” according to Philippine Institute of Volcanology and Seismology.
As per the latest news bulletin released by the said agency, there’s an increased steaming activity in at least five spots inside the main crater of the volcano. The largest activity comprised of a phreatic explosion that generated a plume approximately 100 meters high. In their 2:30 PM announcement, the activity is said to be ongoing.
According to the definition of Wikipedia, the term phreatic explosion happens when the magma heats groundwater or surface water. The extreme heat of magma will cause near-instantaneous evaporation of water to steam, resulting in an explosion of steam, water, ash, rock, and volcanic bombs.
Philvolcs also gave their explanation on raising the Alert Level 1 to Alert Level 2. “This means that there is a probable magmatic intrusion that may or may not lead to an eruption,” according to the news bulletin.
Phivolcs also reminded the public that the main crater of Taal Volcano is strictly off-limits. Likewise, they advised for a precautionary evacuation of Taal Volcano Island.
“Ang phreatic eruption po ay shallow eruption dahil sa pressure…. May masamang epekto rin po ito sa ating kalusugan,” said Phivolcs Science Research Analyst Louie Velasco.