Number of tsunamis in Tonga
Tonga: Number of tsunamis was 4 events in 2022. ◆ Volatile
Number of tsunamis in Tonga, 1865–2022
Source: National Geophysical Data Center / World Data Service (2025) – with major processing by Our World in Data. Measured in events.
Analysis
The most recent figure for number of tsunamis in Tonga is 4 events, measured in 2022. That is the highest value across all 11 years on record.
That represents a change of up 300.0% over ten years.
Over the whole period, number of tsunamis in Tonga peaked at 4 events in 2022 and was at its lowest, 1 events, in 1865.
Tonga ranks 1st of 38 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1860s | 1 events | 1 events | 1 events | 1 |
| 1890s | 1 events | 1 events | 1 events | 1 |
| 1910s | 1 events | 1 events | 1 events | 1 |
| 1940s | 1 events | 1 events | 1 events | 1 |
| 1970s | 1 events | 1 events | 1 events | 1 |
| 1980s | 1 events | 1 events | 1 events | 2 |
| 1990s | 1 events | 1 events | 1 events | 1 |
| 2000s | 1 events | 1 events | 1 events | 2 |
| 2020s | 4 events | 4 events | 4 events | 1 |
Countries ranked near Tonga
More reference data data for Tonga
- Universal right to vote in practice 2 (2025)
- Consumer price index 174.32 2010 = 100 (2025)
- Universal right to vote 2 (2025)
- Competitive elections 1 (2025)
- Men's universal right to vote 1 (2025)
- Elected parliament 1 (2025)
- Chief executive of the government is elected 1 (2025)
- Democracy 7 (2025)
- Civil liberties rating 2 (2025)
- Free country 2 (2025)
Frequently asked questions
- What is number of tsunamis in Tonga?
- Number of tsunamis in Tonga was 4 events in 2022, according to National Geophysical Data Center / World Data Service (2025) – with major processing by Our World in Data.
- What is the highest number of tsunamis recorded in Tonga?
- The highest recorded value was 4 events in 2022.
- What is the lowest number of tsunamis recorded in Tonga?
- The lowest recorded value was 1 events in 1865.
- How does Tonga rank for number of tsunamis?
- Tonga ranks 1st out of 38 countries with data for 2022.
- Is number of tsunamis rising or falling in Tonga?
- Over the last ten years it is up 300.0%. The long-run trend across the full record is volatile.
- Where does this Tonga data come from?
- The figures come from National Geophysical Data Center / World Data Service (2025) – with major processing by Our World in Data, published as part of Number of tsunamis. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 11 observations, free to reuse under CC BY 4.0 (Our World in Data).