World Map › Major Tsunamis Since 1900 › 1973
Historic Tsunami
1973 Japan Tsunami
17 June 1973 · Hokkaido Island · Japan
On 17 June 1973 at 03:55 UTC, a tsunami formed near Hokkaido Island, Japan. It was caused by a magnitude 7.7 earthquake. Waves reached up to 6.0 m high. It was observed at 72 locations in 4 countries or territories, up to 7,755 km from its source.
- Date
- 17 June 1973
- Time
- 03:55 UTC
- Cause
- Earthquake
- Earthquake Magnitude
- 7.7
- Highest Wave
- 6.0 m
- Observation Sites
- 72
- Furthest Reach
- 7,755 km
- Injuries
- 27
- Homes Destroyed
- 2
- Estimated Damage
- 5 million US dollars
- Source Country
- Japan
- Triggering Earthquake
- 1973 Nemuro Earthquake
Countries and Territories Reached
Number of observations, highest wave and deaths in each country.
- 61Japan · 6.0 m
- 4Russia · 1.5 m
- 6United States of America · 0.2 m
- 1Canada
Highest Waves
- 6.0 mFureshima · Japan · 31 km
- 4.5 mMochirippu · Japan · 66 km
- 4.5 mPonporoto · Japan · 52 km
- 4.0 mHichirippu · Japan · 65 km
- 4.0 mTofutsu · Japan · 54 km
- 2.9 mOchiishiko · Japan · 23 km
- 2.8 mHanasaki · Japan · 21 km
- 2.5 mKiritappumizutoriba · Japan · 56 km
- 2.5 mTokotan · Japan · 79 km
- 2.3 mHamanaka · Japan · 56 km
Other Major Tsunamis in the Region
- 1994South Kuril Islands, Russia · 10.4 m11 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
- 1933Sanriku, Japan · 29.0 m3,022 deaths
- 1901Off Northeast Coast Honshu, Japan · 0.3 m18 deaths
Sources: NOAA National Centers for Environmental Information, Global Historical Tsunami Database (doi:10.7289/V5PN93H7) · Natural Earth