Science of Earthquakes

This is a vibration or violent shaking at the surface of the Earth caused by an underground movement of tectonic plates or by volcanic activities.

• Earthquake

• Volcanic Eruption

• Tsunami

• Landslides

An earthquake produces ______ waves which are massive vibrations caused by a sudden release of energy. Which of the following waves is more likely produce by an earthquake?

• Ocean Waves

• Electromagnetic Waves

• Seismic Waves

• Sound Waves

It is the measure of the amount of energy released during an earthquake.

• Epicenter

• Seismograph

• Magnitude

• Intensity

This is the strength of an earthquake that causes minor or extensive damage to humans, properties, and natural surroundings.

• Hyperfocus

• Intensity

• Magnitude

• Epicenter

Which among the following is the point on the surface of the Earth just above the focus (hyperfocus) of the earthquake.

• Focus

• Fault lines

• Hyperfocus

• Epicenter

This is the point where the release of energy starts.

• Focus

• Fault lines

• Epicenter

• Sinkhole

This is a device used to detect and record seismic waves.

• Seismograph

• Telegraph

• Stereograph

• Radiograph