How long do tsunamis last in the Pacific Ocean?

The duration of a tsunami can vary depending on a number of factors, including the magnitude of the earthquake or other geological event that generated the tsunami, the distance from the source of the tsunami, and the topography of the seafloor and coastline. In the Pacific Ocean, tsunamis typically last from a few minutes to several hours. In some cases, the effects of a tsunami can still be observed hours or even days after the initial wave. Some historical tsunamis in the Pacific have been recorded to last for more than a day, especially where strong aftershocks continue to generate new waves.