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 |
|---|---|---|---|
| 1 September 2025 | 2 September 2025 | 1 | Observations: Reported |
| 18 October 2023 | 16 March 2024 | 1 | Observations: Satellite (visual) |
| 11 July 2022 | 11 December 2022 | 1 | Off SE coast · Observations: Reported |
| 12 August 2021 | 24 November 2021 | 1 | Off SE coast · Observations: Aviation |
| 28 December 2020 | 5 April 2021 | 1 | Asodai Sinkhole · Observations: Reported |
| 31 August 2016 | 1 September 2016 | 1 | Asodai Sinkhole · Observations: Reported |
| 7 August 2015 | 7 August 2015 | 1 | Kianohana Beach (N part of the island) · Observations: Reported |
| 1 December 2012 | 11 April 2013 | 1 | Asodai · Observations: Reported |
| 10 February 2012 | 9 July 2012 | 1 | Asodai · Observations: Reported |
| 21 September 2001 | 23 October 2001 | 1 | Off SE coast and Idogahama (NW coast) · Observations: Reported |
| 10 September 1999 | 10 September 1999 | 1 | Asodai area · Observations: Reported |
| 22 August 1994 | 22 August 1994 | 1 | NE side · Observations: Reported |
| 28 November 1982 | 16 December 1982 | 1 | West side (Asodai) · Observations: Reported |
| 9 March 1982 | 10 March 1982 | 1 | NW side (Idogahama beach) · Observations: Reported |
| 13 March 1980 | 13 March 1980 | 1 | Kitanohara · Observations: Reported |
| 11 December 1978 | 11 December 1978 | 1 | West side (Asodai) · Observations: Reported |
| 16 January 1976 | — | 1 | West side (Asodai) · Observations: Reported |
| 1 December 1969 | 1 December 1969 | 1 | Observations: Reported |
| 12 January 1969 | 21 January 1969 | 1 | West side (Asodai) · Observations: Reported |
| 23 December 1967 | 23 December 1967 | 1 | West side (Asodai) · Observations: Reported |
| 28 March 1957 | 28 March 1957 | 1 | Chidoriga-hara · Observations: Reported |
| 16 December 1944 | — | 1 | North and west sides near the coast · Observations: Reported |
| 2 July 1935 | — | 1 | SW side at Chidoriga-hara · Observations: Reported |
| c. 2 July 1930 | — | 1 | NW side near the coast · Observations: Reported |
| 16 July 1922 | — | 1 | West side (Asodai) · Observations: Reported |
| 31 December 1889 | — | 1 | Chidoriga-ana · Observations: Reported |
| 850 BCE ± 50 years | — | ? | Motoyama · Isotopic: 14C (calibrated) |
Data: Global Volcanism Program, Smithsonian Institution (#284120)