There are a few different Tsunami's.
- In DC Maya Shimada, a defector from the US to Japan during WWII, and former member of the Young All-Stars, Tsunami can generate and control tidal waves. Her daughter, Deborah Perkins (New Earth) AKA Deep Blue, is the half sister of Aquaman.
- DC also has Tsunami II who had a very brief run in Adventure Comics in the early 80s.