What Causes a Tsunami to Form?

A tsunami is like a big wave caused by something shaking the ocean floor. Imagine you're in a pool, and someone jumps in, water splashes everywhere. If the ocean floor moves suddenly, it can send huge waves toward the shore.

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Examples

A big earthquake under the ocean shakes up water like a giant splash.
A volcano erupts underwater and sends waves toward the shore.
An underwater landslide moves quickly, causing water to rise and fall suddenly.

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Categories: Environment · tsunami,oceanography,natural disasters