Japan Volcano AlertsHome › World volcanoes › Japan
Iwatesan: eruption history
Elevation2,038 m
TypeComplex
Confirmed eruptions26#17 of 105 in country
Latest eruption1919-07-15
Largest VEI3
Location39.85, 141.00
Eruptions per century (since 1500)
0
1
1
0
1
0
By VEI
2
1
1
3
Eruptions (latest first, up to 60)
| Start | VEI | End | Area |
|---|---|---|---|
| 1919-07-15 | 1 | 1919 | W side of Onigajo caldera (O-jigokudani) |
| 1732-01-22 | 2 | 1732 | NE flank of Yakushi-dake |
| 1686-03-26 | 3 | 1686 | |
| 1450 | – | – | Nishi-Iwate and Higashi-Iwate |
| 1300 | 3 | – | Higashi-Iwate (Myoko-dake) |
| 150 | – | – | Higashi-Iwate |
| 350 BCE | – | – | Higashi-Iwate |
| 450 BCE | – | – | Nishi-Iwate (O-jigokudani area) |
| 1150 BCE | – | – | Nishi-Iwate |
| 1250 BCE | 3 | – | Higashi-Iwate |
| 1500 BCE | – | – | Higashi-Iwate |
| 1650 BCE | – | – | Nishi-Iwate (O-jigokudani area) |
| 2000 BCE | – | – | Nishi-yama |
| 2050 BCE | – | – | Higashi-Iwate |
| 2700 BCE | – | – | Higashi-Iwate |
| 2950 BCE | – | – | Nishi-Iwate |
| 3050 BCE | – | – | Higashi-Iwate |
| 3250 BCE | 0 | – | |
| 3750 BCE | – | – | Higashi-Iwate |
| 4350 BCE | – | – | Higashi-Iwate |
| 4450 BCE | 0 | – | Higashi-Iwate |
| 4850 BCE | – | – | Nishi-Iwate |
| 4900 BCE | – | – | Higashi-Iwate |
| 5650 BCE | – | – | Nishi-Iwate |
| 6300 BCE | – | – | Nishi-Iwate |
| 6450 BCE | – | – |
Nearby volcanoes
| Volcano | Distance | Eruptions |
|---|---|---|
| Hachimantai | 17 km | 2 |
| Akita-Komagatake | 20 km | 18 |
| Akita-Yakeyama | 24 km | 16 |
| Towada | 74 km | 8 |
| Hakkodasan | 90 km | 7 |
| Kurikomayama | 101 km | 7 |
| Iwakisan | 107 km | 13 |
| Megata | 109 km | 2 |
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.