ONEMI and SERNAGEOMIN reported that during 12-19 November white-to-gray plumes from the volcano’s Nicanor Crater reached 12,010-13,490 ft (3,662-4,112 m) altitude and drifted towards the southeast and northeast. Occasional explosions ejecting incandescent material onto the flank were visible at night. The volcano Alert Level remained at Orange, the second highest level on a four-color scale. …
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