Earthquake_Lab_Worksheet_SP23

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Florida International University *

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1010

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Geography

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Jan 9, 2024

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pdf

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Uploaded by BaronHawk11846

1 Earthquake Lab Worksheet – GLY 1010 Lab Student Name: __________________________ • Examine Figure 1 closely. Identify the P and S wave arrival times, S-P interval, and amplitude. Figure 1: Example Seismogram

2 Finding the Epicenter of an Earthquake Task 1: Find the S-P travel Times Estimate the time interval between the arrival of the P and S waves (the S-P Interval on the seismograms from Figure 2, 3, and 4). See Figure 1 for identifying the elements of a seismogram. Figure 2: Tokyo, Japan Tokyo S-P Time Interval: ____________________________ Figure 3: Akita, Japan Akita S-P Time Interval: ____________________________

3 Figure 4: Pusan, South Korea Pusan S-P Time Interval: ____________________________ Task 2: Finding the Earthquake distance from the recording station Determine the distance from each seismic recording station to the earthquake’s epicenter by using the know travel times of the S and P waves. Using Figure 5 , determine the distance from the earthquake to each recording station.

4 Figure 5: S-P Travel Time Curve Answers: • Tokyo, Japan distance (km): ______________________________ • Akita, Japan distance (km): _______________________________ • Pusan, South Korea distance (km): _________________________

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