KARUNA SHINSHO, CNN ANCHOR: Volcano relief efforts in Italy may provide a hint of what the Philippines could soon expect. Work crews in Sicily are scrambling to divert rivers of hot lava erupting from Mount Etna. Streams of lava came dangerously close to a tourist station today as bulldozers pushed a barrier to place. Meanwhile, another eruption may be on the way from Mayon Volcano in the Philippines. Maria Ressa reports.</s>MARIA RESSA, CNN CORRESPONDENT (voice-over): Evacuations began just four hours before its first explosion. Now more than 40,000 people are living in evacuation centers around Mayon Volcano.</s>UNIDENTIFIED FEMALE (through translator): Tons of ash fell near our house, it was really scary. Mayon's explosion was loud.</s>RESSA: It's a familiar exercise for residents who live near Mayon volcano. Its near-perfect cone shape makes it one of the country's tourist attractions. But it is also the Philippines' most active volcano, with nearly 50 major eruptions since the 17th century. The most recent one less than a month ago forced more than 50,000 residents to evacuate. One of the dangers: farmers returning home prematurely. Scientists say they expect more eruptions in the coming days.</s>EDUARDO LAGUERTA, VOLCANOLOGIST: We are seeing right now some still vibrations from the edifice of the volcano, which we observe as lava flow response. But in between, there are some explosions, because if it taps a rich gas magma going up the surface, we can have some explosions.</s>RESSA: Mayon's eruptions hurl up sulfuric gas, ash and debris which form pyroclastic flows. Officials warn residents should stay out of the six kilometer danger zone. Rain forecast for the weekend could mix with volcanic debris and bring the flow further down the slopes of Mayon. Maria Ressa, CNN.
Mayon Volcano In Philippines Poised to Possibly Erupt