Historical tsunamis · July 1361
1361 Nankaido tsunami
Japan
The tsunami of July 1361 originated near Nankaido (Japan).
Key facts
- Date
- July 1361
- Cause
- Earthquake
- Magnitude
- M8.4
- Maximum documented water height
- —
- Deaths
- 660
- Houses destroyed
- 1,700
- Damage
- extreme (over US$ 25 million)
- Observation records
- 6
- Countries affected
- 1
It was triggered by a magnitude 8.4 earthquake.
6 observation sites in 1 countries are recorded.
The database records 660 deaths.
Houses destroyed: 1,700.
Damage is estimated at extreme (over US$ 25 million).
Map of observation sites
6Each 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 | 6 | — | 1,060 | — |
Highest documented water heights
6 / 6Individual 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 |
|---|---|---|---|
| Awa · Tokushima | — | 123 km | Japan |
| Nambaura, Osaka · Osaka | — | 194 km | Japan |
| Naniwa, Osaka · Osaka | — | 189 km | Japan |
| Naruto, Tokushima · Tokushima | — | 136 km | Japan |
| Settsu · Osaka | — | 205 km | Japan |
| Yuki Port, Tokushima · Tokushima | — | 93 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.