Warm Up: Epicenters
Authored by Pamela Slater
Science
9th - 12th Grade
NGSS covered
Used 7+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the number of seismic stations needed to find an epicenter and why?
You need two, because two will intersect at two points and one will be offshore so it is not the epicenter
You only need one because the epicenter will be somewhere along that circle
You will need 3 because 3 is the minimum number of circles that will intersect at one point.
It is not possible to locate the epicenter with seismic data.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you determine the distance to an earthquake epicenter?
Calculate the difference between the P and S waves arrival times
take the number of seconds for the P wave to arrive and multiply by 100 miles
It is the difference in arrival times of the S and Surface Waves.
Take the time for the Surface waves to arrive and multiply by 100 km
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The 2011 Japan earthquake was estimated to have killed approximately 20,000 people. What can you infer about the location of its focus?
It was shallow
It was deep
it was unknown
it was intermediate
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What method do seismologists use in locating an epicenter?
Focus Group Discussion
Interview
Observation
Triangulation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where is the epicenter for this earthquake located based on triangulation?
Tags
NGSS.MS-ESS2-3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where are the P-waves located on this seismogram?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which seismogram represents a city that is far from the epicenter of an earthquake?
Tags
NGSS.MS-ESS3-2
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