Historical tsunamis · Sep 6, 1971, 1:37 PM UTC
1971 Tatar Strait tsunami
Russia
The tsunami of Sep 6, 1971, 1:37 PM UTC originated near Tatar Strait (Russia).
Key facts
- Date
- Sep 6, 1971, 1:37 PM UTC
- Cause
- Earthquake
- Magnitude
- M5.5
- Depth
- 29 km
- Maximum documented water height
- 0.07 m
- Observation records
- 11
- Countries affected
- 2
It was triggered by a magnitude 5.5 earthquake at a depth of 29 km.
The highest documented water height was 0.07 m (Funadomari, Japan).
11 observation sites in 2 countries are recorded.
Map of observation sites
11Each 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 | 10 | 0.32 m Wakkanai | — | — |
| Russia | 1 | 0.07 m Kholmsk, Sakhalin I | — | — |
Highest documented water heights
11 / 11Individual 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 |
|---|---|---|---|
| Wakkanai · Hokkaido Classified as doubtful | 0.32 m | 145 km | Japan |
| Iwanaiko · Hokkaido Classified as doubtful | 0.30 m | 419 km | Japan |
| Haboroko · Hokkaido Classified as doubtful | 0.20 m | 260 km | Japan |
| Otaruko · Hokkaido Classified as doubtful | 0.18 m | 394 km | Japan |
| Abashiri · Hokkaido Classified as doubtful | 0.16 m | 374 km | Japan |
| Senposhigyoko · Hokkaido Classified as doubtful | 0.15 m | 180 km | Japan |
| Teshioko · Hokkaido Classified as doubtful | 0.15 m | 205 km | Japan |
| Funadomari · Hokkaido Classified as doubtful | 0.07 m | 143 km | Japan |
| Kholmsk, Sakhalin I · Sakhalin | 0.07 m | 63 km | Russia |
| Rumoiko · Hokkaido Classified as doubtful | 0.07 m | 306 km | Japan |
| Mombetsu · Hokkaido Classified as doubtful | 0.06 m | 303 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.