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 |
|---|---|---|---|
| 14 December 2012 | 16 March 2016 | 3 | Summit crater · Observations: Reported |
| 27 November 2011 | 4 September 2012 | ? | Summit crater · Observations: Reported |
| 20 April 2011 | 26 May 2011 | 2 | Summit crater · Observations: Reported |
| 22 November 2010 | 2 January 2011 | 3 | Summit crater · Observations: Reported |
| 1 January 2010 | 1 August 2010 | 3 | Summit crater · Observations: Reported |
| 5 October 1999 | 8 July 2009 | 3 | Observations: Reported |
| 3 March 1916 | 1 December 1925 | 4 | Observations: Reported |
| 11 January 1886 | 2 July 1888 | 4 | Observations: Reported |
| 16 January 1885 | 16 October 1885 | 2 | Observations: Reported |
| 10 September 1857 | — | 2 | Observations: Reported |
| 3 January 1776 | — | 2 | Observations: Reported |
| 4 February 1773 | July 1773 | 3 | Observations: Reported |
| 1644 | 1646 | 2 | Observations: Reported |
| 1640 | 1641 | 3 | Observations: Reported |
| 1557 | — | 2 | Observations: Reported |
| 1350 ± 50 years | — | 3 | Isotopic: 14C (calibrated) |
| 1250 ± 50 years | — | ? | Isotopic: 14C (calibrated) |
| 1030 ± 75 years | — | ? | Isotopic: 14C (uncalibrated) |
| c. 800 | — | ? | Isotopic: 14C (uncalibrated) |
| 730 ± 200 years | — | 4 | Isotopic: 14C (uncalibrated) |
| c. 600 | — | 3 | Isotopic: 14C (uncalibrated) |
| 480 ± 75 years | — | ? | Isotopic: 14C (uncalibrated) |
| c. 350 | — | 3 | Isotopic: 14C (uncalibrated) |
| c. 200 | — | ? | Isotopic: 14C (uncalibrated) |
| c. 100 | — | 3 | Isotopic: 14C (uncalibrated) |
| c. 50 BCE | — | 3 | Isotopic: 14C (uncalibrated) |
| c. 100 BCE | — | 3 | Isotopic: 14C (uncalibrated) |
| 270 BCE ± 100 years | — | ? | Isotopic: 14C (uncalibrated) |
| c. 500 BCE | — | 3 | Isotopic: 14C (uncalibrated) |
| 1,010 BCE ± 100 years | — | 5 | Isotopic: 14C (uncalibrated) |
| c. 7,750 BCE | — | 4 | Isotopic: 14C (uncalibrated) |
Data: Global Volcanism Program, Smithsonian Institution (#352080)