Historical tsunamis · Nov 4, 1677
1677 Off SE. Boso Peninsula tsunami
Japan
The tsunami of Nov 4, 1677 originated near Off SE. Boso Peninsula (Japan).
Key facts
- Date
- Nov 4, 1677
- Cause
- Earthquake
- Magnitude
- M7.4
- Maximum documented water height
- 8.00 m
- Deaths
- 500
- Houses destroyed
- 1,001
- Damage
- severe (about US$ 5–25 million)
- Observation records
- 23
- Countries affected
- 1
It was triggered by a magnitude 7.4 earthquake.
The highest documented water height was 8.00 m (Katsuura (Katsuurashi), Japan).
23 observation sites in 1 countries are recorded.
The database records 500 deaths.
Houses destroyed: 1,001.
Damage is estimated at severe (about US$ 5–25 million).
Map of observation sites
23Each 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 | 23 | 8.00 m Katsuura (Katsuurashi) | 485 | — |
Highest documented water heights
15 / 23Individual 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 |
|---|---|---|---|
| Katsuura (Katsuurashi) · Chiba | 8.00 m | 109 km | Japan |
| Iwafune · Chiba | 7.00 m | 104 km | Japan |
| Onjuku · Chiba | 6.00 m | 105 km | Japan |
| Choshi · Chiba | 5.00 m | 101 km | Japan |
| Torami · Chiba | 5.00 m | 109 km | Japan |
| Hachijo Island · Tokyo | 4.00 m | 264 km | Japan |
| Iwanuma · Miyagi | 4.00 m | 352 km | Japan |
| Ohara · Chiba | 4.00 m | 104 km | Japan |
| Onahama · Fukushima | 3.00 m | 221 km | Japan |
| East Izu · Chiba | 2.00 m | 227 km | Japan |
| Kuji · Ibaraki | 2.00 m | 183 km | Japan |
| Nakaminato · Ibaraki | 2.00 m | 169 km | Japan |
| Baba-Chou (Hongo), Choshi · Chiba | — | 101 km | Japan |
| Beach Ridge of Kimiga-Hama, Choshi · Chiba | — | 98 km | Japan |
| Boso Peninsula · Chiba | — | 151 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.