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The real CH 6 practice exam
Terms in this set (25)
It is estimated that over _____ earthquakes that are strong enough to be felt occur worldwide annually
The location on the surface directly above the earthquake focus is called the _____.
The cool, rigid layer of Earth that includes the entire crust as well as the uppermost mantle is called the____
The two most common types of folds are anticlines and ___
Which earthquake body wave has the greatest velocity
The belt from about 105 to 140 degrees away from an earthquake where no P waves are recorded is known as the ____
The study of earthquakes is called ____
The rock immediately above a fault surface is commonly called the _____
The difference in _____ of P and S waves provides a method for determining the epicenter of an earthquake
The source of an earthquake is called the ____
Long-range earthquake forecasts are based on the premise that earthquakes are _____
The epicenter of an earthquake is located using the distances from a minimum of _____ seismic station
Which of the earthquake body waves cannot be transmitted through fluid
Where two oceanic plates converge, _____ subduction zones often ocean.
The San Andreas fault zone separates two great sections of Earth's crust, the North American plate and the _____ plate
Dense rocks like _____ are thought to make up the mantle and provide the lava for oceanic eruption
In areas where unconsolidated materials are saturated with water, earthquakes can turn stable soil into a fluid during a phenomenon called ___
It is assumed that many of the terrains found in the North American Cordillera were once crustal fragments scattered throughout the eastern _____ ocean
The adjustments of materials that follow a major earthquake often generate smaller earthquakes called _____
Faults where the movement is primarily vertical are called _____ fault.
An earthquake with a magnitude of 6.5 releases _____ times more energy than one with a magnitude of 5.5
Where oceanic crust is being thrust beneath a continental mass, _____ subduction zones often occur
Dip-slip faults are classified as _____ faults when the hanging wall moves up relative to the footwall.
Earthquake epicenters are most closely correlated with ____
Which one of the following mountain ranges has formed where continental crusts have converged
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