Historical tsunamis · Nov 11, 2004, 9:26 PM UTC
2004 Kepulauan Alor tsunami
Indonesia
The tsunami of Nov 11, 2004, 9:26 PM UTC originated near Kepulauan Alor (Indonesia).
Key facts
- Date
- Nov 11, 2004, 9:26 PM UTC
- Cause
- Earthquake
- Magnitude
- M7.5
- Depth
- 10 km
- Maximum documented water height
- 2.00 m
- Deaths
- 34
- Injuries
- 400
- Houses destroyed
- 781
- Damage
- severe (about US$ 5–25 million)
- Observation records
- 3
- Countries affected
- 2
It was triggered by a magnitude 7.5 earthquake at a depth of 10 km.
The highest documented water height was 2.00 m (Alor, Indonesia).
3 observation sites in 2 countries are recorded.
The database records 34 deaths.
Houses destroyed: 781.
Damage is estimated at severe (about US$ 5–25 million).
Map of observation sites
3Each 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 | 2 | 2.00 m Alor | — | — |
| East Timor | 1 | 2.00 m Dili, Timor Island | — | — |
Highest documented water heights
3 / 3Individual 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 |
|---|---|---|---|
| Alor · East Nusa Tenggara | 2.00 m | 53 km | Indonesia |
| Dili, Timor Island | 2.00 m | 89 km | East Timor |
| Mali Beach,Kalabahi · East Nusa Tenggara | — | 39 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.