1. A tsunami (pronounced tsoo-NAH-mee) is a wave train, or series of waves, generated in a body of water by a pulsating or abrupt disturbance that vertically displaces the water column. [source]

2. There is no tsunami season. [source]

3. Tsunamis can travel up rivers and streams that lead to the ocean. [source]

4. The word ‘tsunami’ is Japanese, and translates as ‘harbour wave’. [source]

5. About 80% of all tsunamis take place in the Pacific Ocean. [source]

6. Volcanic eruptions, massive landslides, meteorite impacts and underwater nuclear explosions can also cause tsunamis. [source]

7. Tsunamis are often most destructive in bays and harbors because of the violent currents they generate in local waterways. [source]

8. During a strong earthquake oceanic plates can lurch by many meters, rupturing the ocean floor. This suddenly moves a massive amount of water [source]

9. A tsunami can travel across the Pacific Ocean in less than a day. [source]