Mayon rises 2,463 m almost straight from the shore of Albay Gulf -
slopes so symmetric it serves as the textbook stratovolcano, and the most active volcano
in the Philippines with more than 50 recorded eruptions since 1616. At its southern foot
stand the Cagsawa Ruins: the bell tower of a church buried by the eruption of
1 February 1814, which killed about 1,200 people.
The 2018 Eruption button replays, stylised, the January 2018 episode reported
by PHIVOLCS: a ~5 km ash plume, lava fountains up to 700 m, and glowing lava flows down
the real Mi-isi (3.3 km), Bonga (4.5 km) and Basud (1.9 km)
gullies. The dashed ring is the official 6-km Permanent Danger Zone. Gulf
bathymetry is modeled from distance-to-shore; dive below the surface to see it.