LEGAZPI CITY, Philippines -- Mayon and Taal volcanoes in Southern Luzon are still tightly watched by state volcanologists as they continue to show signs of restiveness.

For the past 24 hours, 10 volcanic earthquakes were detected around Mt. Mayon in Albay. White steam clouds drifting towards west-southwest and crater glow at intensity 1 could be observed, the Philippine Institute of Volcanology and Seismology reported Tuesday.

Phivolcs reminded the public to stay away from the 7-kilometer-radius extended danger zone at the volcano's southeast sector and the permanent 6-kilometer-radius permanent danger zone due to threats of sudden explosions and rock fall.

Taal Volcano in Batangas registered three weak volcanic earthquakes over the past 24 hours. The main crater area remains off-limits because steam explosions may suddenly occur.

Alert level 1 remains hoisted over both volcanoes.