Heavy rains over an erupting volcano in the eastern Philippines on Saturday threatened to trigger deadly mudflows as debris and sediment deposited on its slopes are washed out, officials warned. According to dpa, Mayon Volcano in Albay province, 330 kilometres south of Manila, has been belching out ash and lava since January 13, forcing nearly 67,000 people to evacuate their homes at the foot of the mountain. The eruption has deposited millions of cubic metres of thick pyroclastic materials and ashfall on watershed areas and slopes of Mayon Volcano, according to the Philippine Institute of Volcanology and Seismology (Phivolcs).