Historical tsunamis · Apr 6, 2010, 10:15 PM UTC
2010 Sumatra tsunami
Indonesia
The tsunami of Apr 6, 2010, 10:15 PM UTC originated near Sumatra (Indonesia).
Key facts
- Date
- Apr 6, 2010, 10:15 PM UTC
- Cause
- Earthquake
- Magnitude
- M7.8
- Depth
- 31 km
- Maximum documented water height
- 0.44 m
- Injuries
- 22
- Houses destroyed
- 64
- Damage
- moderate (about US$ 1–5 million)
- Observation records
- 6
- Countries affected
- 2
It was triggered by a magnitude 7.8 earthquake at a depth of 31 km.
The highest documented water height was 0.44 m (Meulaboh Port, Sumatra, Indonesia).
6 observation sites in 2 countries are recorded.
Houses destroyed: 64.
Damage is estimated at moderate (about US$ 1–5 million).
Map of observation sites
6Each dot is a documented observation site; colour and size show the observed water height. The triangle marks the source.
Tsunami arrival times
Documented arrival times from the NOAA/NCEI database, showing the earliest recorded location per country. Coverage is incomplete: a country without an entry was not necessarily spared.
- 0:00 hEarthquake (origin) · Apr 6, 2010, 10:15 PM UTC
- 0:39 hIndonesia · Telukdalam, Sumatra · 0.17 m
4 places with a documented arrival time
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Indonesia | 5 | 0.44 m Meulaboh Port, Sumatra | — | 0:39 h |
 Thailand | 1 | 0.01 m D23401 Bpr, 600 Nm W-NW of Phuket | — | — |
Highest documented water heights
6 / 6Individual 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 |
|---|---|---|---|
| Meulaboh Port, Sumatra · Aceh | 0.44 m | 218 km | Indonesia |
| Sibolga, Sumatra · North Sumatra | 0.19 m | 206 km | Indonesia |
| Telukdalam, Sumatra · North Sumatra | 0.17 m | 219 km | Indonesia |
| Padang, Sumatra · West Sumatra | 0.07 m | 527 km | Indonesia |
| Tanabalah, Sumatra · West Sumatra | 0.07 m | 360 km | Indonesia |
| D23401 Bpr, 600 Nm W-NW of Phuket | 0.01 m | 1,186 km | Thailand |
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.