Name: Interpreting Seismograms and TimeTravel Graphs Time (sec) Background Information: Scientists use seismograms and timetravel graphs to locate earthquake epicenters. An earthquake releases energy.
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How to fill out the Interpreting Seismograms and Time Travel Graphs Answer Key online
This guide provides step-by-step instructions on how to complete the Interpreting Seismograms and Time Travel Graphs Answer Key online. By following these steps, users can efficiently gather and record data related to seismology and its applications.
Follow the steps to successfully fill out the answer key.
- Press the ‘Get Form’ button to acquire the document and open it for editing.
- Begin by entering your name at the top of the form in the designated space.
- Read the background information carefully to understand how seismograms and time-travel graphs work.
- Refer to the graph provided to answer the first three questions regarding P wave and S wave arrival times, as well as the lag time calculation. Fill in the empty spaces with your answers.
- If you have the lag time, you can determine the distance from the epicenter. Follow the instructions for using the graph and note the distance in the corresponding field.
- Proceed to record the lag time of your location and the times of arrival for both P and S waves in the specified sections of the form.
- Analyze the earthquake event noted for November 9, 1980, and fill in the arrival times for the P and S waves for each listed city along with the calculated lag times and distances.
- Complete the extra practice section by filling in the table with the given lag time and distance information.
- After verifying all the entries, save your changes, download, print, or share the completed form as needed.
Complete the Interpreting Seismograms and Time Travel Graphs Answer Key online today for a deeper understanding of earthquake data!
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How do you read a seismic chart?
The seismogram is "read" like a book, from left to right and top to bottom (this is the direction that time increases). As with a book, the right end of any horizontal line "connects" with the left end of the line below it. Each line represents 15 minutes of data; four lines per hour.
What does the difference in arrival time between the P and S waves tell us?
Different waves each travel at different speeds and therefore arrive at a seismic station at different times. Difference in arrival times between P and S waves can be used to determine the distance between the station and an earthquake.
How many seismographs are needed to find the epicenter of an earthquake Why is this number significant?
Three seismographs are needed. A circle is drawn from each of the three different seismograph locations, where the radius of each circle is equal to the distance from that station to the epicenter. The spot where those three circles intersect is the epicenter (Figure 13.12).
What is the P and S wave travel time curve?
A traveltime curve is a graph of arrival times, commonly P or S waves, recorded at different points as a function of distance from the seismic source. Seismic velocities within the earth can be computed from the slopes of the resulting curves.
What does a time travel graph tell us?
A travel time curve is a graph of the time that it takes for seismic waves to travel from the epicenter of an earthquake to seismograph stations at varying distances away. The velocity of seismic waves through different materials yield information about Earth's deep interior.
How is the S minus P time interval related to distance from the epicenter?
With increasing distance from the earthquake, the time difference between the arrival of the P waves and the arrival of the S waves increases. Put more simply, the higher the time between the S and P waves (the S-P interval), the farther the distance.
How do you read a time travel graph?
0:20 8:47 Reading the S-P Time Graph - YouTube YouTube Start of suggested clip End of suggested clip So on the graph you have your y-axis. As you do on all graphs. And you have your x-axis. Your y-axisMoreSo on the graph you have your y-axis. As you do on all graphs. And you have your x-axis. Your y-axis is travel time which is in minutes. So that's our unit. So every number here is a minute.
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