Philippine government scientists on Sunday urged Filipinos to keep their distance from three volcanoes in the country, which have been showing signs of increased activity. In one of the volcanoes, Mount Mayon in the eastern province of Albay, scientists have monitored indications that magma was pushing up the surface, according to DPA. "Hence, there is a possibility that the volcano might erupt," said Renato Solidum, director of the Philippine Institute of Volcanology and Seismology (Phivolcs). "There is no timeframe yet, so there is no cause for alarm yet," he added. "But we advise the public not to venture inside the six-kilometre radius permanent danger zone." Solidum said among the signs monitored at the 2,462-metre Mayon, famous for its almost perfectly symmetrical cone, were volcanic earthquakes "above normal levels", a faint crater glow and steam emissions. Mayon's last major eruption was in February 1993, when at least 78 people died. Its deadliest eruption was in 1814 when it buried an entire town under ash and killed more than 1,300 people. Phivolcs is also keeping a close eye on Mount Kanlaon in the central province of Negros Occidental, and Taal volcano in Batangas province, just south of Manila. --More 1232 Local Time 0932 GMT