If you don't want to risk downloading external files, you can create a "pseudo-tsunami" using command blocks. How it works: You use a repeating command block to

First, a vital distinction. On , there is a famous mod called Tsunami Mod by McModder (often part of the Weather, Storms & Tornadoes mod). That mod uses Java’s code to create realistic water physics.

The installation process varies slightly depending on your platform:

: This tool allows you to easily manage and install mods. Make sure to download it from a trusted source.