(Eagle News) — Over 200 volcanic earthquakes were monitored at Taal in 24 hours. The Philippine Institute of Volcanology and Seismology said the 254 quakes at the volcano, which remains on alert level 2, included 220 episodes of volcanic tremor with durations of one to 27 minutes, 33 low-frequency volcanic earthquakes, and one volcano-tectonic earthquake. A weak emission of steam-laden plumes from fumarolic vents and sulfur dioxide emission was also monitored. According to PHIVOLCS, sulfur […]