Historical tsunamis · Aug 20, 2011, 6:19 PM UTC
2011 Vanuatu Islands tsunami
Vanuatu
The tsunami of Aug 20, 2011, 6:19 PM UTC originated near Vanuatu Islands (Vanuatu).
Key facts
- Date
- Aug 20, 2011, 6:19 PM UTC
- Cause
- Earthquake
- Magnitude
- M7.0
- Depth
- 28 km
- Maximum documented water height
- 0.15 m
- Observation records
- 1
- Countries affected
- 1
It was triggered by a magnitude 7.0 earthquake at a depth of 28 km.
The highest documented water height was 0.15 m (Port Vila, Efate Island, Vanuatu).
1 observation sites in 1 countries are recorded.
Map of observation sites
1Each 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) · Aug 20, 2011, 6:19 PM UTC
- 0:20 hVanuatu · Port Vila, Efate Island · 0.15 m
1 places with a documented arrival time
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Vanuatu | 1 | 0.15 m Port Vila, Efate Island | — | 0:20 h |
Highest documented water heights
1 / 1Individual 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 |
|---|---|---|---|
| Port Vila, Efate Island | 0.15 m | 62 km | Vanuatu |
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.