Earthquakes
What is an instrument used to study earthquakes?
Seismograph
What is the first wave that occurs called?
P-Wave
How can scientists tell how far away from a seismograph station? What do they look at to plot the difference in arrival times?
P and S wave
What does the strength of the earthquake influence? There are TWO answers
The height or the amplitude
What can occur as the Earths crustal plates move?
Earthquakes
What type of faulting is most likely to occur along transform faults
Normal Faulting
What is an aftershock?
A series of small tremors occurring after a major earthquake.
What changes the amplitude (height) of the waves of an earthquake?
Ground Vibrations
The pacific ring of fire is a earthquake zone that forms a ring around what ocean?
Pacific Ocean
What is a fault?
When the rock breaks, there is movement along the broken surface causing a split in the surface called a fault.
If there are multiple earthquakes, what will influence the number of waves or the _________ of the wave.
Frequency
What is a wavelength?
The distance from one crest (or trough) to the next.
Tsunamis, intense ground shaking, and landslides can be triggered by an earthquake. True or False?
True
What way does the P-Wave move? What way does the S-Wave move?
The P-Wave moves- Travels side to side/back and forth
The S-Wave moves- travel with a up and down motion
What is the minimum number of seismograph stations that a scientist needs to have data from in order to locate the epicenter of the earthquake?
3
When looking at a seismogram what causes the up and down wiggles?