In regions that have traditionally suffered earthquake and tsunami damage, there are folk traditions that teach people how to survive.
"Tsunami tendenko," a maxim handed down through generations in Japan's Sanriku region, means that everyone must focus on their own survival by believing that all their loved ones have managed to flee.
On the small Indonesian island of Simeulue, a traditional cautionary song goes to this effect: "If the tide goes out after an earthquake, a tsunami will follow. You must flee at once to higher ground."
In 1907, the island was jolted by an earthquake that triggered a tsunami. Many people were killed foraging for fish in the ebbing tide.