Earthquakes Question Preview (ID: 56790)
Use Your Knowledge Of Earth Science To Answer All Questions In The Data Set. You Will Need Your Earth Science Reference Tables And A Calculator To Answer Some Of The Questions. Good Luck.
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The arrival time of the first earthquake P-wave at a seismograph station was 10:11:20 (hours:minutes:seconds). If the epicenter of the earthquake is 8000 km away, what was the approximate arrival time of the first S-wave from this earthquake?
a) 10:02:00
b) 10:09:20
c) 10:20:40
d) 10:32:00
Which information would have been most useful for locating the earthquake epicenter?
a) the difference between the arrival times of the P-wave and the S-wave
b) the arrival time of the S-wave
c) the velocity of the P-wave
d) the location of damage from the earthquake
What usually causes tsunamis?
a) hurricanes
b) high-pressure weather systems
c) undersea earthquakes
d) the collision of ocean currents
No S-waves arrive directly at seismic station A because
a) some parts of the core are liquid
b) S-waves travel too slowly
c) the distance to seismic station A is too great
d) seismic station A is located on glacial ice
On the map, which location is closest to the epicenter of the earthquake?
a) E–5
b) G–1
c) H–3
d) H–8
Approximately how far away from station Y is the epicenter?
a) 1,300 km
b) 2,600 km
c) 3,900 km
d) 5,200 km
The S-waves from this earthquake that travel toward Earth’s center will
a) be deflected by Earth’s magnetic field
b) be totally reflected off the crust-mantle interface
c) be absorbed by the liquid outer core
d) reach the other side of Earth faster than those that travel around Earth in the crust
Seismic station Z is 1,700 kilometers from the epicenter. Approximately how long did it take the P-wave to travel to station Z?
a) 1 min 50 sec
b) 2 min 50 sec
c) 3 min 30 sec
d) 6 min 30 sec
Approximately how long did the S-wave take to travel from the epicenter to location A?
a) 11 min 15 sec
b) 9 min 35 sec
c) 5 min 20 sec
d) 4 min 20 sec
At which location is the arrival-time difference between the P-wave and the S-wave greatest?
a) A
b) B
c) C
d) D
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