Taal Volcano on Friday maintained its state of unrest, emitting steam-laden plumes reaching two kilometers high, the Philippine Institute of Volcanology and Seismology (Phivolcs) said.

In its 8 a.m. bulletin, Phivolcs also said there were 10 volcanic earthquakes including two low-frequency volcanic earthquakes, eight volcanic tremors that lasted between two to 20 minutes, and low-level background tremor that started on April 8.

“There was an upwelling in the Main Crater that started around 11pm on May 20, which is currently creating a thick plume of smoke, with a height of 2 kilometers going southwest. Emissions of sulfur dioxide (SO2) were approximately 3,051 tons/day on May 20,” Phivolcs said.

Temperatures in the lake of the main crater reached 71.8oC last March 4 with acidity level of pH 1.59 last February 12.

Taal Volcano remains under alert level 2, where sudden steam-driven or phreatic explosions, volcanic earthquakes, minor ashfall, and lethal accumulation or exhalation of volcanic gas may suddenly occur and threaten areas inside and outside the Taal Volcano Island.

Phivolcs said entry to the island was prohibited as it was in the permanent danger zone. Jamie Louise Jimeno