The earthquake seismograms for this exercise are below Eureka, CA seismograph station Elko, NV seismograph station Time (seconds) Time (seconds) Las Vegas, NV seismograph station Which seismogram shows the greatest amplitude? Using just the amplitude, which seismograph station is probably closest to the epicenter? (assume all three stations are located on bedrock.) the P- and S- waves. Next, use these time intervals and the bottom graph on page 1 to determine the distance from the epicenter for each seismograph station. Time (seconds) S-P Distance from Station Time Inteveral Epicenter Complete Eureka, seconds Km the table CA below. Elko, Use the Km seconds NV Las Vegas seconds Km NV to The last step is drawing circles on the map to the left to represent the distance from the epicenter the for each station. The radius of each circle should time equal the corresponding distance from the interval epicenter. To know how large to draw each between circle, use the scale on the map. the arrival of The location where all three circles overlap (or nearly overlap) is the location where the earthquake occurred. Miles 100 200 400 600 0 200 400 500 600 300 0 100
The earthquake seismograms for this exercise are below Eureka, CA seismograph station Elko, NV seismograph station Time (seconds) Las Vegas, NV seismograph station Time (seconds) Which seismogram shows the greatest amplitude? Using just the amplitude, which seismograph station is probably closest to the epicenter? (assume all three stations are located on bedrock.) Time (seconds) Complete the table below. Use the to the time interval between the arrival of the P- and S- waves. Next, use these time intervals and the bottom graph on page 1 to determine the distance from the epicenter for each seismograph station. Station S-P Time Inteveral Distance from Epicenter Eureka, CA seconds Km Elko, NV seconds Km Las Vegas NV seconds Km The last step is drawing circles on the map to the left to represent the distance from the epicenter for each station. The radius of each circle should equal the corresponding distance from the epicenter. To know how large to draw each circle, use the scale on the map. Miles 0 100 200 400 600 The location where all three circles overlap (or nearly overlap) is the location where the earthquake occurred. 0 100 200 300 400 500 600