For more, visit TIME Health. 1  Treating migraines effectively might have gotten a lot easier, according to a new study published this month. 2  Researchers at the Albany Medical Center claim that a new innovative treatment offers chronic migraine sufferers prolonged relief from the debilitating headaches.
That's very fast and it's all because of how deep the water is (thousands of feet) and how much energy the earthquake puts into the tidal wave. So now to directly answer your question, the amount of time it takes for a tsunami to come after an earthquake occurs can be as little as 5 minutes or as long as 24 hours. It just depends on how far away the earthquake was from the coast.
Tsunamis may also be caused by underwater landslides or volcanic eruptions. They may even be launched, as they frequently were in Earthâs ancient past, by the impact of a large meteorite plunging into an ocean. Tsunamis race across the sea at up to 500 miles (805 kilometers) an hourâabout as fast as a jet airplane.iller Waves. Photograph by Deshakalyan Chowdhury/AFP/Getty Images. A tsunami is a series of ocean waves that sends surges of water, sometimes reaching heights of over 100 feet (30.5 meters), onto land. These walls of water can cause widespread destruction when they crash ashore.