How can a tsunami be prevented?

No known way to prevent a tsunami from occurring exists. Individuals can take steps to be prepared for a tsunami, and warning systems can help get people out of harm's way if an impending tsunami is predicted.

A warning system that monitors the Pacific Basin for activity that can set off a tsunami is already in place, according to the National Oceanic and Atmospheric Association. The system is operated via two centers — one in Alaska and another in Hawaii.

If activity that suggests a tsunami is forming is detected, NOAA issues a warning for coastal communities where there is a potential for impact.