Tsunami

A tsunami, also known as a sea surge, was a massive series of tidal liquid waves caused largely by a displacement or disturbance of a large body of water. During the Battle on Scrim Island, Imperial Admiral Mitth'raw'nuruodo ordered his command ship the Chimaera to fire its ion cannons into the ocean to cause a tsunami.

When Han Solo and Leia Organa blasted down a starfighter of the Amaxine warriors on Sibensko, it crashed into the water, creating a massive explosion which resulted in tsunamis with a ripple effect so large that it threatened to engulf the entire planet.