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 |
|---|---|---|---|
| 8 August 2020 | 23 September 2021 | 3 | Observations: Reported |
| 7 May 2019 | 9 June 2019 | 4 | Summit crater · Observations: Reported |
| 15 September 2013 | 22 June 2018 | 4 | Summit crater and SE flank · Observations: Reported |
| 27 August 2010 | 17 September 2010 | 3 | Summit crater · Observations: Reported |
| 810 ± 70 years | — | ? | SE flank · Isotopic: 14C (calibrated) |
Data: Global Volcanism Program, Smithsonian Institution (#261080)