HMH The Alaska Earthquake Vocabulary and Words

Front

What is an earthquake?

Back

An earthquake is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves.

Front

Where did the earthquake in the video take place?

Back

Alaska

Front

How long was the earthquake in the video?

Back

5 minutes

Front

What causes earthquakes?

Back

Earthquakes are caused by the movement of tectonic plates, which can release pressure and create seismic activity.

Front

What is a seismograph?

Back

A seismograph is an instrument that measures and records the details of earthquakes, including their magnitude and duration.

Front

What does 'magnitude' refer to in the context of earthquakes?

Back

Magnitude refers to the size or energy released by an earthquake.

Front

What is the significance of a 7.5 magnitude earthquake?

Back

A 7.5 magnitude earthquake is considered major and can cause serious damage in populated areas.

Front

What is the relationship between tectonic plates and earthquakes?

Back

Tectonic plates are large sections of the Earth's crust that move and interact, causing earthquakes when they collide, pull apart, or slide past each other.

Front

What is a tsunami?

Back

A tsunami is a series of ocean waves caused by large disturbances, such as earthquakes, that occur under the sea.

Front

What does 'literally' mean in the context of earthquake reports?

Back

'Literally' means that the information is true and not exaggerated; it indicates that an event actually occurred.