World Map › Heard Island (Big Ben)
Volcano
Heard Island (Big Ben)
Stratovolcano · 2,745 m · Heard Island and McDonald Islands
Heard Island (Big Ben) sits on the Antarctic Plate, above a hotspot, away from plate boundaries. 13 eruptions are known since the end of the last ice age, the most recent in 2026.
- Elevation
- 2,745 m
- Type
- Stratovolcano
- Tectonic Setting
- Intraplate (hotspot), oceanic crust
- Dominant Rock
- Trachybasalt / Tephrite Basanite
- Plate
- Antarctic Plate
- Country
- Heard Island and McDonald Islands
- Last Eruption
- 2026
- Known Eruptions (Holocene)
- 13
- Max. Explosivity (VEI)
- 2
Eruption Timeline
Each bar is an eruption; its height shows its explosivity (VEI 0 to 8).
Eruption Uncertain Date
Sources : Global Volcanism Program, 2026. Volcanoes of the World (v. 5.4.0; 7 Aug 2026), Smithsonian Institution, doi:10.5479/si.GVP.VOTW5-2026.5.4 (volcano.si.edu) · NOAA NCEI · USGS · Wikidata