MANILA, Philippines - Mayon Volcano's activity has become "very intense" with stronger volcanic earthquakes and continuous lava fountaining, the Philippine Institute of Volcanology and Seismology said Tuesday morning.

"Earthquake signals are more intensive and bigger in size compared to Monday's record," Phivolcs Director Renato Solidum told ANC's [email protected].

Solidum said the volcano has been covered by thick clouds since Monday, but the rumbling sounds and stronger earthquake signals indicate that lava fountaining was continuous.

He said the Phivolcs' monitoring team was able to actually see the fountaining of lava during 2 cloud breaks at 6 p.m. Monday.

Phivolcs' bulletin issued at 7 a.m. Tuesday, said the volcano "continued to show an intense level of activity during the past 24 hours." It said a total of 1,266 volcanic earthquakes were detected during the 24-hour observation time.

"Many of these volcanic earthquakes were recorded at maximum deflection and have continuously occurred since 12:21 p.m., 20 December 2009 (Sunday). Harmonic tremors were still continuously being recorded," the Phivolcs bulletin said.

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