The massive explosion from Kanlaon yesterday evening (image: jaime s. sinciocox.com)Yet another powerful explosion took place from the volcano yesterday.A towering pillar of gas, ash and other ejecta rose to about 17,000 ft (5,200 m) altitude, drifting west-southwest.Incandescent material showered the summit crater with glowing lava bombs. The eruption also produced pyroclastic flows that raced over the eastern and southeastern flanks, reaching a length of about 2,000 m from the summit.