(Eagle News) — Over 100 volcanic earthquakes were monitored at Bulusan in 24 hours. The Philippine Institute of Volcanology and Seismology said apart from the 166 earthquakes, monitored at the volcano, which remains on Alert Level 1, was a sustained inflation of the upper slopes. PHIVOLCS said this was “consistent with short-term inflation of the edifice measured by continuous GPS monitoring since February 2021.” “These parameters generally indicate that shallow hydrothermal processes are occurring beneath […]