World Map › Major Tsunamis Since 1900 › 1939
Historic Tsunami
1939 Japan Tsunami
20 March 1939 · Seikaido · Japan
On 20 March 1939 at 03:22 UTC, a tsunami formed near Seikaido, Japan. It was caused by a magnitude 6.6 earthquake. Waves reached up to 0.8 m high. It was observed at 4 locations. It killed at least 1 person.
- Date
- 20 March 1939
- Time
- 03:22 UTC
- Cause
- Earthquake
- Earthquake Magnitude
- 6.6
- Highest Wave
- 0.8 m
- Observation Sites
- 4
- Furthest Reach
- 230 km
- Deaths
- 1
- Homes Destroyed
- 1
- Source Country
- Japan
Highest Waves
- 0.4 mMurotomisaki · Japan · 230 km
- 0.1 mAburatsu · Japan · 97 km
- 0.1 mTosa-Shimizu · Japan · 105 km
- 0.0 mHososhima · Japan · 35 km
Other Major Tsunamis in the Region
- 1995Kobe, Japan · 0.3 m6,434 deaths
- 1961Seikaido, Japan · 0.7 m2 deaths
- 1946Honshu: S Coast, Japan · 6.6 m1,362 deaths
- 1941Seikaido, Japan · 1.2 m2 deaths
- 1927Sw. Honshu Island, Japan · 11.3 m3,022 deaths
- 1914Seikaido, Japan · 3.0 m63 deaths
Sources: NOAA National Centers for Environmental Information, Global Historical Tsunami Database (doi:10.7289/V5PN93H7) · Natural Earth