PHILIPPINES - More than 21,000 people have now been evacuated from neighborhoods around Mount Mayon, the Philippines, as the volcano’s explosive episode continued into a fourth day. Mount Mayon, a 2,460-meter volcano in the Albay province, began emitting ash plumes into the air on Saturday. An update from the Philippines National Disaster Risk Reduction and Management Council (NDRRMC) reveals lava flows have now advanced 2km along the Miisi Gully area of the volcano. An increase in lava flows has resulted in the evacuation of more than 21,000 individuals from 30 barangays, or neighborhoods, around Camlig, Guinobatan, Daraga, and Malilipot. In response, refuge centers have been set up in the municipalities of Daraga, Guinobatan, Malilipot, and Santo Domingo, according to government officials.