World Map › Major Tsunamis Since 1900 › 1977
Historic Tsunami
1977 Indonesia Tsunami
19 August 1977 · Sunda Islands · Indonesia
On 19 August 1977 at 06:08 UTC, a tsunami formed near Sunda Islands, Indonesia. It was caused by a magnitude 8.3 earthquake. Waves reached up to 15.0 m high. It was observed at 16 locations in 2 countries or territories, up to 1,067 km from its source. It killed at least 189 people and injured 75.
- Date
- 19 August 1977
- Time
- 06:08 UTC
- Cause
- Earthquake
- Earthquake Magnitude
- 8.3
- Highest Wave
- 15.0 m
- Observation Sites
- 16
- Furthest Reach
- 1,067 km
- Deaths
- 189
- Injuries
- 75
- Estimated Damage
- 1 million US dollars
- Source Country
- Indonesia
- Triggering Earthquake
- 1977 Sumba Earthquake
Countries and Territories Reached
Number of observations, highest wave and deaths in each country.
Highest Waves
- 15.0 mSumbawa Island · Indonesia · 259 km189 deaths
- 6.0 mCape Leveque · Australia · 759 km
- 5.5 mKuta, Lombok Island · Indonesia · 339 km1 deaths
- 4.3 mAwang, Lombok Island · Indonesia · 331 km24 deaths
- 4.1 mNusa Dua, Bali Island · Indonesia · 432 km
- 4.0 mPort Sampson · Australia · 1,060 km
- 2.8 mNusa Dua, Bali Island · Indonesia · 432 km
- 2.5 mSanur Beach, Bali Island · Indonesia · 437 km
- 2.4 mDampier · Australia · 1,067 km
- 1.5 mBenoa, Bali Island · Indonesia · 438 km
Other Major Tsunamis in the Region
- 2026Flores Sea, Indonesia · 2.9 m156 deaths
- 2018Bali Sea, Indonesia2 deaths
- 2018Bali Sea, Indonesia · 2.0 m560 deaths
- 2018Bali Sea, Indonesia · 2.5 m17 deaths
- 1992Flores Sea, Indonesia · 26.2 m2,500 deaths
- 1928Flores Sea, Indonesia · 10.0 m226 deaths
Sources: NOAA National Centers for Environmental Information, Global Historical Tsunami Database (doi:10.7289/V5PN93H7) · Natural Earth