1.   Many Pacific earthquakes have generated tsunamis.

2.   Giant sea waves generated by earthquakes can smash the shore with devastating force.

3.   Currently, most of the country is monitored by arrays of mechanical monitors that read a variety of seismic waves generated by earthquakes.

4.   Strong underwater earthquakes frequently generate tsunami waves, but the size of the waves and when they will hit is hard to predict.

5.   Strong underwater earthquakes frequently generate tsunami waves, but the size of the waves and when they will hit is notoriously hard to predict.

6.   Strong underwater earthquakes frequently generate tsunami waves.

7.   Strong underwater earthquakes frequently generate tsunamis, but the size of the waves and when they will hit is notoriously hard to predict.

8.   There was no fear of tsunami, large waves sometimes generated by earthquakes, the agency said.