Historic Tsunami

2026 Indonesia Tsunami

14 August 2026 · Flores Sea · Indonesia

On 14 August 2026 at 21:58 UTC, a tsunami formed near Flores Sea, Indonesia. It was caused by a magnitude 7.7 earthquake. Waves reached up to 2.9 m high. It was observed at 44 locations, up to 471 km from its source. It killed at least 156 people and injured 1,620.

Date

14 August 2026

Time

21:58 UTC

Cause

Earthquake

Earthquake Magnitude

7.7

Highest Wave

2.9 m

Observation Sites

44

Furthest Reach

471 km

Deaths

156

Injuries

1,620

Homes Destroyed

5,099

Source Country

Indonesia

Triggering Earthquake

2026 Flores Earthquake

Highest Waves

• 2.9 mSalama, 1 · Indonesia · 96 km
• 2.3 mTompong 2 · Indonesia · 56 km
• 2.2 mTompong 3 · Indonesia · 56 km
• 2.2 mKp Pecah 1 · Indonesia · 99 km
• 2.0 mPota 2 · Indonesia · 66 km
• 1.9 mS Padut 2 · Indonesia · 83 km
• 1.9 mTompong 1 · Indonesia · 56 km
• 1.9 mBungkang · Indonesia · 100 km
• 1.8 mSt Padut 1 · Indonesia · 83 km
• 1.8 mKampas 1 · Indonesia · 86 km

Other Major Tsunamis in the Region

• 2004Kepulauan Alor, Indonesia · 2.0 m34 deaths
• 1995Timor Sea, Indonesia · 4.0 m11 deaths
• 1992Flores Sea, Indonesia · 26.2 m2,500 deaths
• 1979Lomblen Island [lembata], Indonesia · 9.0 m1,239 deaths
• 1977Sunda Islands, Indonesia · 15.0 m189 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