Exam 9: Earthquakes and Volcanoes

Oil and gas tend to concentrate in the low areas of a fold, i.e., near the bottom of a syncline.

The San Andreas fault in California and the North Anatolian fault in Turkey are both right-lateral, strike-slip faults.

The area at the surface directly above the subsurface location where seismic waves are initiated is termed the

Foreshocks may be caused by

The variety of surface features on Earth results from

The wave amplitude associated with a magnitude 8 quake on the Richter scale is how many times greater than that of a magnitude 6 quake?

The San Andreas fault is principally the result of compressional stress.

Concerning Mount Saint Helens, which of the following is not correct?

Seismic gaps investigations involve

Which of the following is a cause of warping?

The Basin and Range Province in the western U.S. is a result of ________ faulting produced by ________ forces.

A topographic region that is characterized by local relief of less than 100 m (325 ft) is considered a

The major impact of earthquake $\underline {\text { prediction } }$ on a region would be

Ductile rocks are more likely to bend in response to stress than are brittle rocks.

Which of the following is $\underline {\text { not } }$ produced by normal faulting?

History seems to teach us that humans are generally unable or unwilling to perceive hazards in a familiar environment.

Which of the following is $\underline {\text { not } }$ the result of $\underline {\text { extrusive } }$ volcanic activity?

Which of the following is not used to rate an earthquake on the moment magnitude scale?

The greatest amount of crustal shortening would be associated with

Some parts of the San Andreas are currently experiencing a seismic gap, which means that there is very little risk of a major quake in the next few decades.