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WorksheetsEarthquakes Review
Total questions: 48
Worksheet time: 2hrs 55mins
If the first P-wave arrived at seismic station A at
10hrs:22min:30sec, what was the origin time for the
earthquake?
A) 02hrs:02min:30sec
B) 10hrs:30min:50sec
C) 10hrs:14min:10sec
D) 10hrs:22min:30sec
If it takes 50 seconds for the P-wave to arrive at Buffalo, how long would it take for the S-wave from this same earthquake to arrive at Buffalo? [Refer to the Earth Science Reference Tables.]
A) 0min50sec
B) 6min40sec
C) 4min00sec
D) 1min40sec
What is the approximate distance between the earthquake's
epicenter and station A? [Refer to the Earth Science
Reference Tables.]
A) 7,500 km
B) 1,130 km
C) 5,100 km
D) 2,400 km
Which seismic station could be located in New York State?
A
B
C
D
Which of the four seismic stations is located farthest from
the epicenter?
A
B
C
D
A seismograph station records a difference in arrival time between the S- and P-wave of 4 minutes. About how far away is the earthquake epicenter?
A) 1,000 km
B) 5,200 km
C) 2,600 km
D) 1,900 km
Which graph best represents the relationship between the
differences in arrival times of P-waves and S-waves for
locations at varying distances from an earthquake?
A P-wave reaches a seismograph station 2,600 kilometers
from an earthquake epicenter at 12:10 p.m. According to the
Earth Science Reference Tables, at what time did the
earthquake occur?
A) 12:01 p.m.
B) 12:15 p.m.
C) 12:19 p.m.
D) 12:05 p.m.
An earthquake occurred at 5:00:00 a.m. According to the
Earth Science Reference Tables, at what time would the
P-wave reach a seismic station 3,000 kilometers from the
epicenter?
A) 5:04:30 a.m.
B) 5:05:40 a.m.
C) 5:01:40 a.m.
D) 5:10:15 a.m.
The epicenter of an earthquake is located near Massena,
New York. According to the Earth Science Reference
Tables, the greatest difference in arrival times of the P- and
S-waves for this earthquake would be recorded in
A) Utica, New York
B) Binghamton, New York
C) Plattsburgh, New York
D) Albany, New York
On another day, location A records the arrival of
compression waves (P-waves), but not shear waves
(S-waves), from a distant earthquake. Which statement best
explains why shear waves were not received?
A) Shear waves are stopped by the iron and nickel inner
core.
B) Shear waves are transmitted through all parts of the
Earth.
C) Shear waves are not transmitted through the Earth's
outer core.
D) Shear waves are faster than compression waves.
A seismic recording station located 4000 km from the epicenter of an earthquake received the first P-wave at 7:10:00 pm (h:min:s). Other information that could be determined from this recording was that the earthquake occured at approximately
7:03:00 pm, and the S-wave arrived at this station at 7:12:40 pm
7:03:00 pm, and the S-wave arrived at this station at 7:15:40 pm
7:17:00 pm, and the S-wave arrived at this station at 7:12:40 pm
7:17:00 pm, and the S-wave arrived at this station at 7:15:40 pm
Earth's crustal bedrock at the Mid-Atlantic Ridge is composed mostly of
basalt, with a density of 2.7 g/cm3
basalt, with a density of 3.0 g/cm3
granite, with a density of 2.7 g/cm3
granite, with a density of 3.0 g/cm3
A seismograph records the arrival of a P-wave at 11:13 am. If the earthquake occurred 4000 kilometers from the recording station, when did the earthquake occur?
11:06 am
11:13 am
11:11 am
11:00 am
In which layer of Earth’s interior is the inferred temperature 6,000º C?
crust
outer core
inner core
mantle
At 4,500 kilometers below the surface
of the Earth, the pressure is estimated to
be
A) 1.4 million atmospheres
B) 2.0 million atmospheres
C) 2.8 million atmospheres
D) 3.1 million atmospheres
A seismic station 4000 kilometers from
the epicenter of an earthquake records
the arrival time of the first P-wave at
10:00:00. At what time did the first Swave
arrive at this station?
A) 9:55:00
B) 10:05:40
C) 10:07:05
D) 10:12:40
How far from an earthquake epicenter
is a city where the difference between the
P-wave and S-wave arrival times is 6
minutes and 20 seconds?
A) 1.7 × 103 km
B) 9.9 × 103 km
C) 3.5 × 103 km
D) 4.7 × 103 km
The epicenter of an earthquake is located 2,800 kilometers from a seismic station. Approximately
how long did the S-wave take to travel from the epicenter to the station?
A) 11 min 15 sec
B) 9 min 35 sec
C) 5 min 20 sec
D) 4 min 20 sec
How long would it take for the first S-wave to arrive at a seismic station 4,000 kilometers away from
the epicenter of an earthquake?
A) 5 min 40 sec
B) 7 min 0 sec
C) 12 min 40 sec
D) 13 min 20 sec
Which statement correctly compares seismic P-waves with seismic S-waves?
A) P-waves travel faster than S-waves and pass through Earth's liquid zones.
B) P-waves travel faster than S-waves and do not pass through Earth's liquid zones.
C) P-waves travel slower than S-waves and pass through Earth's liquid zones.
D) P-waves travel slower than S-waves and do not pass through Earth's liquid zones.
26. A seismic recording station located 4000
kilometers from the epicenter of an earthquake
received the first P-wave at 7: 10:00 p.m. (h:min:s).
Other information that could be determined from
this recording was that the earthquake occurred
at approximately
7:03:00 p.m., and the S-wave arrived at this
station at 7:12:40 p.m.
7:03:00 p.m., and the S-wave arrived at this
station at 7:15:40 p.m.
7:17:00 p.m., and the S-wave arrived at this
station at 7:12:40 p.m.
7:17:00 p.m., and the S-wave arrived at this
station at 7:15:40 p.m.
48. Which activity could best prepare residents along the Mediterranean coast to reduce the loss of human life
during a future tsunami?
Board up windows.
Remove heavy objects from the walls in homes.
Plan evacuation routes to higher ground.
Build reinforced basements.
Only P-waves were recorded at seismic station C because P-waves travel
only through Earth’s interior, and S-waves travel only on Earth’s surface
fast enough to penetrate the core, and S-waves travel too slowly
through iron and nickel, while S-waves cannot
through liquids, while S-waves cannot
Convection currents in the plastic mantle are believed to cause divergence of lithospheric plates at the
Peru-Chile Trench
Mariana Trench
Canary Islands Hot Spot
Iceland Hot Spot
In which Earth layer are most convection currents that cause seafloor spreading thought to be located?
crust
asthenosphere
outer core
inner core
The first S-wave reaches a seismic station 22 minutes after an earthquake occurred. How long did it take the first P-wave to reach the same seismic station?
8 minutes 50 seconds
10 minutes 00 seconds
12 minutes 00 seconds
12 minutes 50 seconds
How long after receiving the first P-wave from an earthquake centered 4000 kilometers away does a seismic station receive its first S-wave from the same earthquake?
1 minute
5 minutes 35 seconds
7 minutes
12 minutes 40 seconds
Which part of this seismogram is used to find the distance to the epicenter of the earthquake?
P-wave arrival time, only
S-wave arrival time, only
difference in the arrival time of the P-wave and S-wave
difference in the height of the P-wave and S-wave
A seismic station receives a P-wave at 12:07 a.m. and an S-wave at 12:12 a.m. The station's distance from the epicenter is approximately
2,600 km
3,400 km
4,000 km
8,800 km
The map below shows the location of an earthquake epicenter in New York State. Seismic stations A, B, and C received the data used to locate the earthquake epicenter.
The seismogram recorded at station A would show the...
arrival of P-waves, only
earliest arrival time of P-waves
greatest difference in the arrival times of P-waves and S-waves
arrival of S-waves before the arrival of P-waves
Which statement correctly describes the distance between the earthquake epicenter and these seismic stations?
A is closest to the epicenter, and C is farthest from the epicenter.
B is closest to the epicenter, and C is farthest from the epicenter.
C is closest to the epicenter, and A is farthest from the epicenter.
A is closest to the epicenter, and B is farthest from the epicenter.
The p-waves of an earthquake arrived at a seismic station at 08:55:50 and the s-waves arrived at 09:03:40. What is the distance to the epicenter from this seismic station?
4700 km
6100 km
2200 km
750 km
following an earthquake supports the inference
that Earth’s interior changes from solid rock to
molten iron and nickel at the mantle-core
boundary?
stations.
side of Earth.
where rock with a density range of 9.9 to
12.2 g/cm3 is found?
The diagram represents a model of Earth’s surface and internal structure. Letters A, B, C, and D represent four different layers. Some depths below Earth’s surface are shown. Which Earth layer is inferred to be composed of solid nickel and iron?
A
B
C
D
36. Based on the graph, the first low tide on December 26 occurred at approximately
6 a.m.
11 a.m.
6 p.m.
11 p.m.
Which table correctly shows the interior temperature, melting point, and state (phase) of matter of the materials located 4000 kilometers below Earth’s surface?
What is the approximate location of the Tasman Hot Spot in the Pacific Ocean?
36° N 160° W
36° S 160° E
160° N 36° W
160° S 36° E
The map below shows two locations, labeled A and B, separated by a mountain range. The locations are at the same elevation. The arrow represents the direction of prevailing winds.
Compared to the climate at location A, the climate at location B is most likely...
warmer and drier
warmer and wetter
cooler and drier
cooler and wetter
