Earthquake Monitoring

An area where no direct seismic waves from a particular earthquake can be detected is called

• an inactive fault zone

• the mesosphere

• a shadow zone

• the atmosphere

The composition of Earth's interior affects

• how long an earthquake will last

• the speed and direction of the seismic waves

• the location of the earthquake's focus

• the strength of an earthquake

Tags

NGSS.HS-ESS2-3

What are the fastest body waves

• p waves

• t waves

• s waves

• q waves

Rayleigh waves cause the ground to move

• in a horizontal direction

• in a back-and-forth direction

• in a jerky, up-and-down motion

• in an elliptical, rolling motion

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which scale more accurately measures the magnitude of large earthquakes

• modified Mercalli scale

• Richter scale

• moment magnitude scale

• Mohs scale

A modern seismograph consists of

• three sensing devices

• four sensing devices

• two sensing devices

• 10 sensing devices

To find the distance to an earthquake's epicenter, scientists

• chart the lag time between preshocks and after shocks

• use radio wave detection devices

• analyze the arrival of p waves and s waves

• analyze the arrival times of the Love waves and the Rayleigh waves

To locate the epicenter of earthquakes, scientists use computers to

• analyze hypotheses and theories

• perform triangulations based on data from seismograph stations

• detect vibrations

• determine magnitude and intensity

If you are in a car during an earthquake, you should

• drive toward a bridge

• stop the car in a safe place

• get out and run

• park near a tall building

If you are indoors during an earthquake, you should

• stay away from windows

• get on top of a desk or table

• scream and panic

• get outside fast