Exam 8: A Violent Pulse: Earthquakes

Earthquakes often occur along ________.

During an earthquake,if the hanging wall slides upward relative to the footwall,the fault is termed a ________ fault if the fault is steep (closer to vertical than horizontal).Refer to the figure below for an example of such a feature.

Seismic retrofitting is the process of ________.

Evidence of a past earthquake may be found by looking for offset beds or ________.

Explain why tsunamis are NOT tidal waves.

At a minimum,how many seismic stations are necessary to locate the epicenter of an earthquake?

Surface waves ________.

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.

The point within Earth where an earthquake takes place is termed the ________.

Which type of seismic wave has the fastest velocity?

Long-term prediction methods include ________.

Which of the following is NOT true concerning the long-term forecasting of earthquakes? Long-term forecasting ________.

A surface along which rock on opposed sides is offset by an earthquake-induced slip is called a ________.

The recurrence of earthquakes along a single fault is referred to as ________.

A primary force opposing motion on all faults is ________.

Body waves include ________.

________ occur(s)when earthquakes causes pore pressure to increase,which in turn causes grains to separate and compact.

The moment magnitude is based on the ________ and ________ of the earthquake.

The ________the earthquake,the less severe the damage will be.

Why do subduction zones have the potential to create the largest earthquakes on Earth?