How Do Tsunamis Travel Across Oceans?

A tsunami is like a giant wave that moves really fast across the ocean, and it can travel for thousands of miles before reaching land.

Imagine you're in a big swimming pool, and someone jumps in right near the edge. The water ripples out from where they jumped, and those ripples get bigger as they go farther, just like a tsunami when it starts.

A tsunami is made of many waves that are all moving together. These waves can be really tall under the ocean, but because the water is deep, they don’t look very big, kind of like how your foot doesn't feel very heavy in a pool, even though it’s big.

As the tsunami moves across the ocean, it goes faster and faster. It's like when you push a swing, the more you go back and forth, the faster you go. The waves keep moving until they finally reach a place where the water is shallower, like when you jump out of the pool into the shallow end.

When that happens, the wave gets taller and taller, and it can become a giant wall of water that crashes onto the shore, just like when you splash in a puddle and make a big wave!