(Eagle News) — Over 100 earthquakes were monitored at Taal in 24 hours. The Philippine Institute of Volcanology and Seismology said the 102 quakes at the volcano, which remains on alert level 2, included 16 low-frequency volcanic earthquakes and 86 volcanic tremor events with durations of one to 22 minutes, and low-level background tremor that has persisted since April 8. PHIVOLCS said sulfur dioxide emission was also monitored, and averaged 3,256 tons on May 18. […]