(Inquirer) MANILA, Philippines — An “upwelling of hot volcanic fluids in the Main Crater lake” of Taal Volcano was reported Tuesday morning, which generated 300-meter high steam-laden plumes, the Philippine Institute of Volcanology and Seismology (Phivolcs) said Wednesday.

Phivolcs added that a total of 383 volcanic earthquakes were recorded in the past 24 hours including 238 episodes of volcanic tremor lasting from one to 12 minutes. There were also 143 low frequency volcanic earthquakes and low-level background tremors that started in the morning of April 8.

Phivolcs said sulfur emission averaged 1,886 tons/day on Monday, April 12, while a temperature of 71.8 degrees Celsius and pH of 1.59 were last measured from the main crater lake on March 4 and February 12, respectively.

A “very slow and steady inflation and expansion” of Taal Volcano region is still being observed, Phivolcs added.