Surface waves are seismic waves that travel outward from the epicenter. A tsunami is a powerful ocean wave generated by an earthquake
What is surface waves vs tsunami
100
Earthquakes can occur when which of the following is passed?
What is elastic limit
100
Which would probably be more stable during an earthquake- a single-story wood frame house or a brick building? Why?
The Single story wood frame house would be more stable because the wood is able to give more than the masonry building when surface waves travel through it.
100
What kind of waves stretch and compress rocks?
What is primary waves
100
When rocks break they move along these surfaces.
What is faults
200
The inner core is the very center of the earth. The outer core surrounds the inner core.
What is inner core vs. outer core
200
When the rock above the fault surface moves down relatives to the rock below the fault surface, what kind of fault?
What is normal
200
Tsunami's are often called tidal waves. Explain why this is incorrect.
Tsunamis are caused by earthquakes that displace the ocean floor. Tides, on the other hand, are caused by the gravitational pull among the sun, the moon, and the earth.
200
What part of a seismograph remains still?
What is pendulum
200
This breaking releases stored energy to produce vibrations.
What is earthquakes?
300
Faults are surfaces along which rocks move when forces cause them to break. A focus is the point in earth's interior where rupture along a fault occurs, producing an earthquake.
What is fault vs. focus
300
How are most lives lost during an earthquake?
What is collapse of buildings
300
Which seismic waves cause most of the damage during an earthquake? why?
What is surface waves, because its motion moves from side to side and up and down.
300
What happens to primary waves when they go from liquids to solids?
What is speed up.
300
rocks on either side of the fault surface are moving past each other without much upward or downward movement
What is strike-slip fault?
400
In a normal fault, rocks above the fault surface move downward in relation to rocks below the fault surface. In reverse fault, rocks above the fault surface are forced up and over the rocks below the fault surface.
What is normal fault vs. reverse fault
400
An earthquake of magnitude 7.5 has how much more energy than a quake of magnitude 6.5?
What is 32 times more
400
What kind of fault would you expect to be most common along the mid- atlantic ridge? Explain.
Tension along the Mid-Atlantic ridge causes normal faults to form.
400
What is the fewest number of seismograph stations that are needed to locate the epicenter of an earthquake?
What is three.
400
The rocks above the fault surface are forced up and over the rocks below the fault surface.
What is reverse fault?
500
A seismologist is a scientist who studies earthquakes and seismic waves. A seismograph is an instrument used to record seismic waves from earthquakes.
What is seismologist vs. seismograph
500
Primary and secondary waves move outward from which of the following? Epicenter, focus, Moho discontinuity, or tsunami.
What is focus.
500
a fault in which rocks on either side of the fault surface move past each other without much upward or downward movement.
What is a strike-slip fault?
500
The height of the lines traced on the paper is a measure of the energy released, or _____________ of the earthquake.