It warned the public of steam-driven or phreatic explosions, volcanic earthquakes, minor ashfall and lethal accumulations or expulsions of volcanic gas. Entry into the permanent danger zone ...

Phreatic eruption is a steam-driven explosion ... The agency prohibited the entry into the Taal Volcano Island, permanent danger zone or PDZ, especially the vicinity of the Main Crater and the ...

Under Alert Level 1, the possible hazards are sudden steam-driven or phreatic explosions, volcanic earthquakes, minor ashfall and lethal accumulations or expulsions of volcanic gas. PHIVOLCS prohibits ...