If a tsunami is detected by scientists how much time will they have to warn the public?

Warning time for a tsunami can be anywhere from 15 minutes to several hours depending on how close your island is to the earthquake that triggered the tsunami. For example, if you live in St. Kitts and an earthquake occurred near Antigua a tsunami could impact your island within minutes. Alternatively, if an earthquake were to occur off the west coast of Africa, a tsunami from that earthquake would take several hours before reaching the Caribbean.