Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
Describe a strike-slip fault.
|
Bocks on either side of the fault surface move past each other.
|
|
|
Which type of fault is least likely to form mountains.
Explain. |
Strike-slip faults cause horizontal movement. Because there is little vertical movement, these faults are least likely to form mountains.
|
|
|
What is the focus?
|
It is the point in Earth's interior where the energy release of an earthquake occurs.
|
|
|
What are primary waves?
|
Waves that cause rock particles to move back and forth in the same direction that the waave is traveling.
|
|
|
What are secondary waves?
|
Waves that cause rock particles to move at right angles to the direction that the wave is moving.
|
|
|
What are surface waves?
|
Waves that move rock particles backward in a rolling motion and a side-to-side swaying motion.
|
|
|
What is the most destructive seismic wave?
|
Surface waves
|
|
|
Which waves are the first to reach a seismograph after an eaithquake?
|
Primary waves
|
|
|
According to Figure 11-1, what is the difference in seismic waves' arrival time if the epicenter is 5,000km away?
|
6 minutes 30 seconds
|
|
|
Using Figure 11-1, how far away is the epicenter if the difference in seismic wave arrival times is 7 minutes?
|
5,500 km
|
