Historia erupcji
VEI – wskaźnik eksplozywności wulkanicznej: 0 = wylew lawy, 4 = jak Eyjafjallajökull 2010, 6 = jak Pinatubo 1991, 7 = jak Tambora 1815. Skala jest logarytmiczna – każdy stopień to ok. 10 razy więcej materiału.
| Początek | Koniec | VEI | Miejsce i datowanie |
|---|---|---|---|
| 23 stycznia 1606 | — | 2 | Submarine flank · Observations: Reported |
| 27 października 1605 | — | 2 | Nishi-yama SE flank · Observations: Reported |
| luty 1518 | 1523 | 2 | Nishi-yama · Observations: Reported |
| 7 grudnia 1487 | — | 2 | Nishi-yama · Observations: Reported |
| 850 ± 200 lat | — | ? | Nishi-yama summit and SE flank · Isotopic: 14C (calibrated) |
| 150 p.n.e. ± 50 lat | — | ? | Nishi-yama · Isotopic: 14C (calibrated) |
| 350 p.n.e. ± 500 lat | — | 3 | NW flank of Higashi-yama · Correlation: Tephrochronology |
| 1 150 p.n.e. ± 700 lat | — | ? | SE flank of Nishi-yama (Kanda-yama) · Correlation: Tephrochronology |
| 1 250 p.n.e. ± 800 lat | — | ? | Nishi-yama · Correlation: Tephrochronology |
| ok. 2 050 p.n.e. | — | 5 | SE of Nishi-yama, NE of Higashi-yama · Correlation: Tephrochronology |
| 2 450 p.n.e. ± 500 lat | — | 4 | Nishi-yama · Correlation: Tephrochronology |
| 2 550 p.n.e. ± 500 lat | — | 3 | S flank of Higashi-yama (Myohoji) · Correlation: Tephrochronology |
| 2 700 p.n.e. ± 100 lat | — | 3 | Between Nishi-yama & Higashi-yama · Isotopic: 14C (calibrated) |
| 3 350 p.n.e. ± 1 300 lat | — | ? | Nishi-yama · Correlation: Tephrochronology |
| ok. 4 650 p.n.e. | — | 5 | Nishi-yama · Correlation: Tephrochronology |
| 5 020 p.n.e. ± 370 lat | — | 3 | Higashi-yama south flank · Correlation: Tephrochronology |
| 7 650 p.n.e. ± 3 000 lat | — | ? | Nishi-yama · Correlation: Tephrochronology |
| 8 020 p.n.e. ± 2 640 lat | — | 4 | Nishi-yama · Correlation: Tephrochronology |
Dane: Global Volcanism Program, Smithsonian Institution (#284050)