World Map › Marchena
Volcano
Marchena
Shield volcano · 343 m · Ecuador
Marchena sits on the Nazca Plate, in a rift zone. 1 eruption is known since the end of the last ice age, the most recent in 1991.
- Elevation
- 343 m
- Type
- Shield volcano
- Tectonic Setting
- Rift zone, oceanic crust
- Dominant Rock
- Basalt / Picro-Basalt
- Plate
- Nazca Plate
- Country
- Ecuador
- Last Eruption
- 1991
- Known Eruptions (Holocene)
- 1
- 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