Authorities in the Philippines evacuated thousands of people from the south of Manila on Sunday after the Mayon volcano erupted. They cautioned people to stay out of the danger zone, designated as an area within a 6km radius of the volcano, saying it could be impacted by landslides and lava flows. Not long before the eruption, officials at the Philippine Institute of Volcanology and Seismology, also known as Phivolcs, had reported visible signs of intensified and magmatic unrest, with lava flows and volcanic earthquakes. A thick blanket of ashfall engulfed several towns in the central province of Albay, disrupting traffic and daily life. Mayon is the most active of the 22 volcanoes in the Philippines. It has erupted nearly 50 times over the last four centuries. The last magmatic eruption in June 2023 spewed large volumes of lava and noxious gases. The most destructive eruption of Mayon came in February 1841 when lava flows buried an entire town and killed 1,200 people.…