Massive ocean waves called tsunamis often spring from big sea surface shakeups. Undersea quakes, volcano blasts, seafloor slides, or even space rocks smacking the ocean can spark them. It kicks off when water gets shoved around fast spawning waves that race to nearby shores and across vast seas. These waves stretch long and stay low in deep waters. But as they near the coast, they slow down and shoot up in height. Once they hit land, tsunami waves can tower sky-high and flood far inland leaving a trail of wreckage in their wake. The whole thing’s like nature’s own wrecking ball – starts small out at sea then BAM! It’s a coastal nightmare before you know it. Governments tackle tsunami threats head-on with smart plans. They set up early alarm systems – a mix of earthquake detectors under the sea special buoys that feel water changes, and tools to watch the tides. Coastal towns run lessons and practice drills so folks know where to run when danger strikes. Clear signs show escape routes, and safe spots pop up in risky areas. They even build stuff to stand up to big waves. Nature gets a helping hand too – mangroves and coral reefs act like shields against the ocean’s fury. It’s a whole bag of tricks to keep people safe when the sea gets angry.