Mayon

Geography & Climate

Mayon is located in Philippines, within the Eastern Philippine Volcanic Arc of the broader Western Pacific Volcanic Regions. Situated at 13.26° N, 123.69° E in the Northern Hemisphere, the volcano lies within a tropical climate zone. At 2,462 meters above sea level, Mayon rises above the surrounding terrain into montane or subalpine conditions. The elevation creates distinct ecological zones along its flanks, from forested lower slopes to exposed rocky terrain near the summit. The volcanic landform is characterized as a composite, which describes the physical shape and structure of the volcanic edifice as observed from the surface.

Geological Context

Mayon sits in a subduction zone, where one tectonic plate dives beneath another, creating intense heat and pressure that generates magma. Subduction zones are responsible for many of the world's most explosive volcanoes and deadliest eruptions. For communities in Philippines near Mayon, this tectonic setting means the volcano is capable of producing powerful explosive eruptions, pyroclastic flows, and lahars that can threaten populated areas within tens of kilometers of the summit. The dominant rock type is andesite / basaltic andesite, a dark, fine-grained volcanic rock that forms from rapidly cooling, low-viscosity lava. Basaltic eruptions tend to be less explosive and produce fluid lava flows that can travel long distances. While less immediately dangerous than explosive eruptions, basaltic lava flows can destroy structures and infrastructure in their path, and volcanic gases released during these eruptions can affect air quality over a wide area.

Eruption History Summary

Mayon has 69 recorded eruptions in the geological database, spanning from 3100 BCE to 2025 CE. The most powerful recorded event was a cataclysmic eruption with ash columns reaching the stratosphere in 1897 CE, reaching VEI 4 on the Volcanic Explosivity Index. Notable eruptions include 2018 CE (VEI 3), 2001 CE (VEI 3), 1999 CE (VEI 3). With an average interval of roughly 74 years between eruptions over a span of 5,125 years, this is one of the more frequently active volcanoes in the database. This persistent activity suggests a robust and well-supplied magma system beneath the volcano. With eruptive activity as recently as 2025 CE, Mayon remains an actively monitored volcano.

Significance

With a maximum recorded VEI of 4, Mayon has demonstrated the capacity for significant explosive eruptions that can impact regional aviation, agriculture, and communities tens of kilometers from the summit. VEI 4 eruptions produce ash columns reaching 15-25 kilometers into the atmosphere. Its 69 recorded eruptions make it one of the most prolific volcanoes in the entire global volcanic record, reflecting an exceptionally persistent magma supply system that has sustained near-continuous eruptive activity over millennia. Given its recent activity, Mayon is closely monitored by geological survey organizations to provide early warning of future unrest.

GVP Reference Summary

Symmetrical Mayon, which rises above the Albay Gulf NW of Legazpi City, is the most active volcano of the Philippines. The steep upper slopes are capped by a small summit crater. Recorded eruptions since 1616 CE range from Strombolian to basaltic Plinian, with cyclical activity beginning with basaltic eruptions, followed by longer periods of andesitic lava flows. Eruptions occur predominately from the central conduit and have also produced lava flows that travel far down the flanks. Pyroclastic density currents and mudflows have commonly swept down many of the approximately 40 ravines that radiate from the summit and have often damaged populated lowland areas. A violent eruption in 1814 killed more than 1,200 people and devastated several towns.

— Smithsonian Institution, Global Volcanism Program