Earthquakes and Seismic Waves

The point beneath the Earth's surface where the earthquake begins.

• epicenter

• fault

• focus

• magnitude

What is a seismograph?

• A record of the Earth's temperature

• A recording of earthquakes waves

• A log of the times and locations of Earthquakes

• A list of the different states of matter found in the Earth

Tags

NGSS.MS-PS4-2

It is the energy radiated in all directions from the focus due to earthquake.

• seismic waves

• epicenter

• body waves

• surface waves

This is considered as the fastest kind of seismic waves.

• Love waves

• Body waves

• Primary waves

• Secondary waves

How long does it take for a S wave to travel 6000 km (6x10^3)?

• 17 min

• 9 min 20 sec

• 15 min

• 16 min 40 sec

Tags

NGSS.HS-PS4-1

Name the point underground (red dot) where the faulting in an earthquake occurs.

• earthquake

• epicenter

• fault

• focus

Tags

NGSS.MS-ESS3-2

What is the point on Earth's surface (blue dot) directly above the focus of an earthquake?

• earthquake

• epicenter

• fault

• focus

Tags

NGSS.MS-ESS3-2

Which scale measures the magnitude of an earthquake and is the scale that is currently most commonly used by scientists?

• Richter scale

• Mercalli scale

• Moment magnitude scale

• Fujita scale

Which is the location of an earthquake ON EARTH'S SURFACE?

• Landslide

• Seismic

• Epicenter

• Focus

________ are the slowest seismic waves.

• P waves

• S waves

• Surface waves

• Epicenter