Earthquakes

Front

What is the point at which the first movement occurs during an earthquake?

Back

Focus

Front

What scale rates earthquakes based on the amount of damage done?

Back

Mercalli Scale

Front

Which type of seismic wave is the first to arrive after an earthquake occurs?

Back

P Wave

Front

What type of wave travels fastest and is always the first detected by seismic stations?

Back

P waves

Front

What is the epicenter of an earthquake?

Back

The point on the surface directly above the focus.

Front

What are seismic waves?

Back

Waves of energy that travel through the Earth, typically caused by earthquakes.

Front

What is the difference between the focus and the epicenter of an earthquake?

Back

The focus is the point inside the Earth where the earthquake originates, while the epicenter is the point on the Earth's surface directly above the focus.

Front

What is a seismograph?

Back

An instrument that measures and records details of earthquakes, such as force and duration.

Front

What are S waves?

Back

Secondary waves that arrive after P waves and can only travel through solids.

Front

What is the Richter scale?

Back

A scale that quantifies the amount of energy released by an earthquake.