World Map › Major Tsunamis Since 1900 › 1947
Historic Tsunami
1947 Japan Tsunami
4 November 1947 · West Hokkaido Island · Japan
On 4 November 1947 at 00:09 UTC, a tsunami formed near West Hokkaido Island, Japan. It was caused by a magnitude 7.0 earthquake. Waves reached up to 2.0 m high. It was observed at 4 locations.
- Date
- 4 November 1947
- Time
- 00:09 UTC
- Cause
- Earthquake
- Earthquake Magnitude
- 7.0
- Highest Wave
- 2.0 m
- Observation Sites
- 4
- Furthest Reach
- 188 km
- Source Country
- Japan
- Triggering Earthquake
- M 7.0, 1947
Highest Waves
- 2.0 mWakkanai · Japan · 188 km
- 2.0 mKutsugata · Japan · 154 km
- 0.7 mHaboroko · Japan · 84 km
- 0.6 mOtaru · Japan · 54 km
Other Major Tsunamis in the Region
- 1993Sea of Japan, Japan · 32.0 m231 deaths
- 1983Noshiro, Japan · 14.9 m104 deaths
- 1982Hokkaido Island, Japan · 1.3 m110 deaths
- 1968Off East Coast of Honshu Island, Japan · 6.0 m52 deaths
- 1952Se. Hokkaido Island, Japan · 6.5 m33 deaths
- 1939Nw. Honshu Island, Japan · 1.2 m27 deaths
Sources: NOAA National Centers for Environmental Information, Global Historical Tsunami Database (doi:10.7289/V5PN93H7) · Natural Earth