Answer:
1. fault - earthquake
A fault is a thin zone of crushed rock separating blocks of the earth's crust. An earthquake is the result of a sudden release of stored energy in the Earth's crust that creates seismic waves.
2. focus - epicenter
The focus is an underground place where earthquakes starts. Epicenters are vertically above the focus.
3. seismograph - seismogram
A seismogram is a written or digital record of an earthquake while seismographs are the main instruments in the analysts which survey earthquakes and those that map the Earth's within.
4. tsunami - liquefaction
Tsunamis are a series of waves in a water body caused by the displacement of a large volume of water, often because of earthquakes. Liquefaction is where saturated soil loses strength and stiffness and behaves like in a liquid form.
5. magnitude - intensity
Magnitude is the calculated size of the earthquake determined by a seismograph. The intensity of an earthquake is determined by the amount of shaking at a particular location.
