Exercises

The blocks that make up the crust of the earth are called _____ plates.

The tectonic plates move continually on the _____.

The weak points on the earth's crust where earthquakes are likely to occur are called _____ . 

The instrument used to record earthquakes is called a _____.

(hygrometer/seismograph)

The magnitude of an earthquake is measured on the _____ scale.

The point on the surface directly above the seismic focus is called the _____ .

During an earthquake one should:

Most of the damage caused during an earthquake is due to