Questions 1-5
A force that acts on rock to change its shape or volume is called
stress
The type of stress force that produces a strike-slip fault is:
shearing
Which type of seismic wave arrives first at a seismograph?
P (primary) wave
S waves arrive at a seismograph
after the P waves
Anticlines and synclines are two types of:
folds
Compression, tension and shearing are three types of:
stress
The point beneath Earth’s surface where the crust breaks and triggers an earthquake:
focus
By drawing circles to show distances from three seismograph stations, geologists can locate the _______ of an earthquake.
epicenter
Which stress force pulls on the crust and stretches rock?
tension
A large area of flat land that is elevated high above sea level is known as
a plateau
An instrument used to measure and record ground movements during an earthquake is called:
seismograph
What process occurs when an earthquake’s shaking turns loose soil into mud?
liquefaction
A break in the crust where slabs slip past each other is a(n):
fault
The type of stress that pushes masses of rock sideways in opposite directions is:
shearing
The _________ is a rating system that estimates the total energy released by an earthquake.
Moment magnitude scale
Water displaced by an undersea earthquake may produce a:
tsunami
What type of fault forms when the hanging wall moves upward past the footwall?
normal fault
___________ of the crust produces anticlines and synclines.
compression
The point on Earth’s surface directly above an earthquake’s focus is called the:
epicenter
A ____________ building design reduces the amount of energy that reaches the building during an earthquake.
base-isolated