This is the 4818th most frequent Japanese word.
津波
"Tsunami" is a large sea wave caused by an underwater earthquake, landslide, or volcanic eruption.
In this sentence, '津波' is used as a noun to denote the natural phenomenon of a large wave caused by underwater seismic activities.
津波は突然海岸に襲いました。
The tsunami suddenly struck the coast.
Here, '津波' is used in context with its cause (earthquakes), explaining its connection or origin.
地震の後で津波が発生する可能性があります。
After an earthquake, a tsunami might occur.
In this example, '津波' is used in the context of safety measures and warnings related to tsunamis.