Japan Volcano AlertsHome › World volcanoes › Japan
Iwakisan: eruption history
Elevation1,624 m
TypeStratovolcano
Confirmed eruptions13#30 of 105 in country
Latest eruption1863-03-23
Largest VEI3
Location40.66, 140.30
Eruptions per century (since 1500)
0
4
2
3
0
0
By VEI
1
7
1
Eruptions (latest first, up to 60)
| Start | VEI | End | Area |
|---|---|---|---|
| 1863-03-23 | 1 | – | |
| 1845-04-04 | 2 | – | |
| 1844-04-07 | 2 | – | Summit and south flank? |
| 1790-10-09 | 2 | – | |
| 1782-12-01 | 2 | 1783 | |
| 1618-01-31 | 2 | – | |
| 1604-02-07 | 3 | – | Torinoumi |
| 1600-07-23 | 2 | 1600 | Torinoumi |
| 1600-02-22 | 2 | – | Torinoumi |
| 550 BCE | – | – | Torinoumi lava dome |
| 1050 BCE | – | – | Summit and central lava dome |
| 4050 BCE | – | – | West summit lava dome |
| 8050 BCE | – | – | Torinoumi lava dome |
Nearby volcanoes
| Volcano | Distance | Eruptions |
|---|---|---|
| Hakkodasan | 48 km | 7 |
| Towada | 51 km | 8 |
| Akita-Yakeyama | 86 km | 16 |
| Hachimantai | 91 km | 2 |
| Megata | 93 km | 2 |
| Osorezan | 97 km | 1 |
| Iwatesan | 107 km | 26 |
| Akita-Komagatake | 108 km | 18 |
Eruption records from the Smithsonian Global Volcanism Program; older eruptions may be missing. VEI = Volcanic Explosivity Index (0–8). For current alerts, check the official agency.