Historical tsunamis · Apr 19, 2021
2021 Soufriere Volcano tsunami
St. Vincent & Grenadines
The tsunami of Apr 19, 2021 originated near Soufriere Volcano (St. Vincent & Grenadines).
Key facts
- Date
- Apr 19, 2021
- Cause
- Volcanic eruption
- Maximum documented water height
- 0.10 m
- Observation records
- 4
- Countries affected
- 4
Cause according to NOAA/NCEI: Volcanic eruption.
The highest documented water height was 0.10 m (Calliaqua, Saint Vincent and the Grenadines).
4 observation sites in 4 countries are recorded.
Map of observation sites
4Each 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 |
|---|---|---|---|---|
| Saint Vincent and the Grenadines | 1 | 0.10 m Calliaqua | — | — |
 St. Lucia | 1 | — | — | — |
| Martinique (French Territory) | 1 | — | — | — |
 Grenada | 1 | — | — | — |
Highest documented water heights
4 / 4Individual 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 |
|---|---|---|---|
| Calliaqua | 0.10 m | 22 km | Saint Vincent and the Grenadines |
| Ganters Bay | — | 78 km | St. Lucia |
| Le Robert | — | 151 km | Martinique (French Territory) |
| Prickly Bay | — | 160 km | Grenada |
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.