Global Volcanism Program, 2019. ... is the Philippines' most active volcano. Report on Mayon (Philippines) (Crafford, A.E., and Venzke, E., eds.). The structurally simple edifice has steep upper slopes averaging 35-40 degrees that are capped by a small summit crater. Philippines warns of 'explosive eruption' as Taal volcano spews ash This article is more than 4 months old About 8,000 residents ordered to evacuate volcano island and other high-risk towns A column of ash surrounds the crater of Taal Volcano as it erupts on Jan. 12, 2020, with lightning in the background, as seen from Tagaytay city, in the Philippines. People watch as Taal Volcano erupts Sunday Jan. 12, 2020, in Tagaytay, Cavite province, outside Manila, Philippines. Fears of another big eruption as thousands flee Taal volcano in the Philippines.