A Tsunami
Tsunamis are very long waves that can reach up to very big heights
The biggest tsunami ever was 1720 feet tall
A tsunami
A tsunami is also known as harbor wave is a series of waves in a water body produced by the displacement of a substantial quantity of water, commonly in an ocean or a huge lake. Earthquakes, volcanic outbursts, and other submarine eruptions which comprise explosions, avalanches, glacier calving, meteorite impressions, and other perplexities above or below water all have the potential to produce a tsunami.