List of Volcanic Disasters in Japan after 1970
Today (2014 Sep 27) Mt. Ontake in Nagano prefecture erupted and 63 hikers died by ashes.
The following list shows volcanic disasters in Japan after 1970.
| Mountain | Period | Cause | Damage |
| Usu | 1977-1982 | Ash, crustal deformation, mudflow | 1978 Oct：Mudflow killed 3 people. 2 injured. Damage on 196 houses. |
| Usu | 2000-2001 | Ash deposits, crustal deformation mudflow | Damage on roads and trains |
| Hakkoda | 1997 Jul | Volcanic gas | During the training, 3 rangers of JSDF died by volcanic gas. |
| Adatara | 1997 Sep | Volcanic gas | 4 hikers died by volcanic gas. |
| Kusatsu Shirane | 1971 Dec | Volcanic gas | Dec 27：6 workers who were working to dig a hot spring died by volcanic gas. |
| Kusatsu Shirane | 1976 Aug | Volcanic gas | August 3：3 hikers died by volcanic gas. |
| Asama | 2004 Aug-Nov | Ash fall | Damage on firms and windows |
| Niigata yakeyama | 1974 Jul | Cinder | July 28：3 hikers died by flying stones. |
| Yake | 1995 Feb | Phreatic explosion | Feb 11：4 died by a phreatic explosion |
| Ontake | 2014 Sep | Pyroclastic flow | Sep 27：63 hikers around the top died |
| Miyakejima | 1983 Oct | Lava, ash fall | Oct 3：400 houses buried by lavas and ashes. |
| Aso | 1979 Sep | Eruption | Sep 6：3 died, 11 wounded by an eruption. |
| Aso | 1997 Nov | Volcanic gas | Nov 23：2 visitors died by gas. |
| Unzen | 1991 Jun | Pyroclastic flow, debris flow | Jun 3：43 died by pyroclastic flows. |
| Unzen | 1991 Jun | Pyroclastic flow, debris flow | Jun 8：207 houses were damaged by pyroclastic flows. |
| Unzen | 1991 Sep | Pyroclastic flow, debris flow | Sep 15：218 houses were damaged by pyroclastic flows. |
| Unzen | 1992 Aug | Pyroclastic flow, debris flow | Aug 8：17 houses were damaged by pyroclastic flows. |
| Unzen | 1993 Jun | Pyroclastic flow, debris flow | Jun 23-24：a person died by pyroclastic flow. |
| Kirishima | 2011- | Eruption | Feb 1：a person injured by eruption sonic. |
| Sakurajima | 1973 Jun | Eruption | Jun 1：a person injured by a flying stone. |
| Sakurajima | 1974 Jun | Debris flow | Jun 17：2 died and one person was missing. |
| Sakurajima | 1974 Aug | Debris flow | Aug 9：5 died by debris flow. |
Source is Japan Meteorological Agency.
www.data.jma.go.jp/svd/vois/data/tokyo/STOCK/souran/main/disaster_table.pdf
Image: Sakurajima
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