Historical tsunamis · Sep 9, 1780
1780 SW. Kyushu Island tsunami
Japan
The tsunami of Sep 9, 1780 originated near SW. Kyushu Island (Japan).
Key facts
- Date
- Sep 9, 1780
- Cause
- Volcanic eruption
- Maximum documented water height
- 6.00 m
- Damage
- moderate (about US$ 1–5 million)
- Observation records
- 2
- Countries affected
- 1
Cause according to NOAA/NCEI: Volcanic eruption.
The highest documented water height was 6.00 m (Koike, Sakurajima Is, Japan).
2 observation sites in 1 countries are recorded.
Damage is estimated at moderate (about US$ 1–5 million).
Map of observation sites
2Each dot is a documented observation site; colour and size show the observed water height. The triangle marks the source.
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Japan | 2 | 6.00 m Koike, Sakurajima Is | — | — |
Highest documented water heights
2 / 2Individual documented observations for this event. Heights come from different measurement types and sources; not every location has a measured height.
| Location / station | Observed height | Distance from source | Country |
|---|---|---|---|
| Koike, Sakurajima Is · Kagoshima | 6.00 m | 10 km | Japan |
| Kagoshima Bay · Kagoshima | — | 13 km | Japan |
More tsunamis
Source: NOAA National Centers for Environmental Information (NCEI), Global Historical Tsunami Database. Confirmed events only. Deaths and damage are database estimates; older records are incomplete. Water heights come from different types of observation.