Historical tsunamis · Dec 14, 2021, 3:20 AM UTC
2021 Flores Sea tsunami
Indonesia
The tsunami of Dec 14, 2021, 3:20 AM UTC originated near Flores Sea (Indonesia).
Key facts
- Date
- Dec 14, 2021, 3:20 AM UTC
- Cause
- Earthquake
- Magnitude
- M7.3
- Depth
- 18 km
- Maximum documented water height
- 0.60 m
- Injuries
- 98
- Houses destroyed
- 470
- Damage
- moderate (about US$ 1–5 million)
- Observation records
- 7
- Countries affected
- 1
It was triggered by a magnitude 7.3 earthquake at a depth of 18 km.
The highest documented water height was 0.60 m (East Tadu, Kalaotoa Island, Indonesia).
7 observation sites in 1 countries are recorded.
Houses destroyed: 470.
Damage is estimated at moderate (about US$ 1–5 million).
Map of observation sites
7Each dot is a documented observation site; colour and size show the observed water height. The triangle marks the source.
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Indonesia | 7 | 0.60 m East Tadu, Kalaotoa Island | — | — |
Highest documented water heights
7 / 7Individual documented observations for this event. Heights come from different measurement types and sources; not every location has a measured height.
| Location / station | Observed height | Distance from source | Country |
|---|---|---|---|
| East Tadu, Kalaotoa Island · South Sulawesi | 0.60 m | 48 km | Indonesia |
| Marapokot · East Nusa Tenggara | 0.04 m | 139 km | Indonesia |
| Reo · East Nusa Tenggara | 0.04 m | 207 km | Indonesia |
| East Tadu, Kalaotoa Island · South Sulawesi | — | 48 km | Indonesia |
| East Tadu, Kalaotoa Island · South Sulawesi | — | 48 km | Indonesia |
| East Tadu, Kalaotoa Island · South Sulawesi | — | 48 km | Indonesia |
| East Tadu, Kalaotoa Island · South Sulawesi | — | 48 km | Indonesia |
More tsunamis
Source: NOAA National Centers for Environmental Information (NCEI), Global Historical Tsunami Database. Confirmed events only. Deaths and damage are database estimates; older records are incomplete. Water heights come from different types of observation.