Earthquakes

• Science
• Secondary Education

Earth quakes

• what is an earthquake?
• what is the focus and epicenter of an earthquake?
• how do scientists measure earthquakes? 

earth quakes

what is an earth quake?

an earth quake is any sudden shacking of the ground caused by the passage of seismic waves through earths rocks.

measuring earth quakes

view page 8 of Year 9 Science QCAT 2012 student booklet 

What is the point on the Earth's surface directly above the earthquake's origin?

1. Fault line
2. Epicenter
3. Tectonic plate
4. Seismic wave

Where does the earthquake's energy release occur within the Earth?

1. Crust
2. Core
3. Mantle
4. Focus

Which part of the Earth experiences the most intense shaking during an earthquake?

1. Tsunami
2. Epicenter
3. Seismograph
4. Aftershock

What device do scientists use to measure earthquake waves?

1. Barometer
2. Seismometer
3. Thermometer
4. Compass

Which unit is commonly used to measure the magnitude of an earthquake?

1. Celsius Scale
2. Kelvin
3. Richter Scale
4. Pascal