Eruption history
VEI – Volcanic Explosivity Index: 0 = lava outpouring, 4 = like Eyjafjallajökull 2010, 6 = like Pinatubo 1991, 7 = like Tambora 1815. The scale is logarithmic – each step is about 10 times more material.
| Start | End | VEI | Vent and dating |
|---|---|---|---|
| March 1477 | — | 2 | N of caldera (Namshraun, Laugahraun) · Observations: Reported |
| c. 1170 | — | ? | W side of caldera (Hrafntinnuhraun) · Correlation: Tephrochronology |
| c. 870 | — | 3 | W side of caldera (Hrafntinnuhraun) · Correlation: Tephrochronology |
| 150 ± 100 years | — | 3 | N of caldera (Domadalshraun) · Correlation: Tephrochronology |
| 1,150 BCE ± 100 years | — | ? | N of caldera (Domadalshraun) · Correlation: Tephrochronology |
| 1,550 BCE ± 500 years | — | ? | W side of caldera (Markafljot domes) · Correlation: Tephrochronology |
| 4,550 BCE ± 500 years | — | ? | N of caldera (Haolduhraun) · Correlation: Tephrochronology |
| c. 4,850 BCE | — | ? | W of caldera (Laufafell domes) · Correlation: Tephrochronology |
| c. 5,050 BCE | — | ? | Hrafntinnusker and Domadalshraun · Correlation: Tephrochronology |
| c. 6,050 BCE | — | ? | W side of caldera (Slettahraun) · Correlation: Tephrochronology |
Data: Global Volcanism Program, Smithsonian Institution (#372050)