Number of tsunamis by country
Countries reporting
38
Highest
4
Tonga
Lowest
1
Canada
Median
1
Years covered
999
1026–2024
Data points
1,068
What the numbers show
Number of tsunamis is currently reported for 38 countries. The highest value is 4 in Tonga; the lowest is 1 in Canada.
The median across all reporting countries is 1, and the mean is 1.39.
The gap between the highest and lowest reporting country is a factor of about 4.
Over the past decade 8 countries rose and 2 fell. The largest increase was in Tonga (up 300.0%), and the largest decrease in Philippines (down 50.0%).
Number of tsunamis: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Tonga | 4 | 2022 | up 300.0% | volatile |
| 2 | Japan | 3 | 2024 | up 200.0% | volatile |
| 2 | United States | 3 | 2024 | up 50.0% | volatile |
| 4 | Indonesia | 2 | 2023 | unchanged | volatile |
| 4 | Portugal | 2 | 1980 | up 100.0% | rising |
| 4 | New Zealand | 2 | 2023 | down 33.3% | rising |
| 4 | New Caledonia | 2 | 2023 | up 100.0% | volatile |
| 4 | Mexico | 2 | 2022 | up 100.0% | rising |
| 4 | Italy | 2 | 2022 | — | volatile |
| 4 | Greenland | 2 | 2023 | up 100.0% | rising |
| 4 | Brazil | 2 | 2020 | up 100.0% | rising |
| 12 | Ukraine | 1 | 2014 | — | rising |
| 12 | Antarctica | 1 | 2021 | unchanged | flat |
| 12 | Turkey | 1 | 2023 | unchanged | rising |
| 12 | Venezuela | 1 | 1997 | — | flat |
| 12 | Vanuatu | 1 | 2024 | unchanged | volatile |
| 12 | Samoa | 1 | 2009 | unchanged | flat |
| 12 | El Salvador | 1 | 2014 | unchanged | falling |
| 12 | Guadeloupe | 1 | 2005 | — | flat |
| 12 | Taiwan | 1 | 2024 | — | rising |
| 12 | Solomon Islands | 1 | 2022 | unchanged | volatile |
| 12 | Australia | 1 | 2012 | unchanged | flat |
| 12 | Russia | 1 | 2024 | unchanged | volatile |
| 12 | Papua New Guinea | 1 | 2018 | unchanged | rising |
| 12 | Philippines | 1 | 2023 | down 50.0% | rising |
| 12 | Peru | 1 | 2024 | unchanged | rising |
| 12 | Norway | 1 | 2015 | — | rising |
| 12 | South Korea | 1 | 2008 | — | flat |
| 12 | Iceland | 1 | 2014 | — | flat |
| 12 | India | 1 | 2010 | unchanged | flat |
| 12 | Haiti | 1 | 2021 | unchanged | falling |
| 12 | Greece | 1 | 2020 | unchanged | rising |
| 12 | Spain | 1 | 2020 | unchanged | flat |
| 12 | Algeria | 1 | 2021 | — | rising |
| 12 | Costa Rica | 1 | 2019 | unchanged | rising |
| 12 | China | 1 | 2018 | unchanged | flat |
| 12 | Chile | 1 | 2022 | unchanged | rising |
| 12 | Canada | 1 | 2024 | unchanged | falling |