MANILA, Philippines — Four volcanic earthquakes were recorded at Kanlaon Volcano on Negros Island in the past 24 hours, the Philippine Institute of Volcanology and Seismology (Phivolcs) said on Monday. In its 5 a.m. bulletin, Phivolcs also reported a sulfur dioxide emission of 1,383 tons on Sunday, July 13, with plumes reaching up to 600
