Exam 8: A Violent Pulse: Earthquakes

Earthquake early warning systems

The average length of time between earthquakes along a fault is termed the ______.

The intersection between a fault plane and the ground surface is called the

A long delay between the arrival of P-waves and S-waves at a seismometer means that

Explain why "tidal wave" is actually a poor term for tsunamis.

The displacement that occurs during the largest earthquakes can be as long as

Geologists who specifically study earthquakes are called

A tsunami is

How is the Mercalli intensity scale used to determine the magnitude of an earthquake? What errors might be associated with this technique?

Describe two earthquake-related hazards.

If a fault is nearly vertical in orientation and the two walls of rock on opposite sides slide past one another horizontally,the fault is termed a ________ fault.Refer to the figure below for an example of such a feature.

Generally,which of the following types of earthquake waves travel with the slowest velocity?

Faults that have moved recently or are likely to move in the future are referred to as ________ faults.

Why is an empty field a very safe place to be in an earthquake?

At any point along the surface of any nonvertical fault,as is shown in the figure below,the

Earthquakes that occur in a band called the ________ can be used to track the motion of subducted oceanic lithosphere.

Which of the following hazards is most likely to occur several days to weeks after an earthquake?

As shown in the figure below,a coiled spring would be useful in illustrating any ________ wave.

Which geological setting is likely to experience the least amount of seismic activity?

Wet and unconsolidated substrates are uniquely susceptible to ________ during an earthquake.