Study the data showing the difference in the arrival time of P-wave and S-wave on three seismic recording stations. Time difference in the Recording Station Distance of epicenter from the station (km) arrival time of P-wave and S-wave (seconds Samar 32

Applications and Investigations in Earth Science (9th Edition)
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Pls help me answer number 4 with complete solution

Procedure:
Study the data showing the difference in the arrival time of P-wave
and S-wave on three seismic recording stations.
Time difforence in the
Recording Station
Distance of opicentor from
the station (km)
arrival timo of P-wave
and S-wave (seconds
Samar
32
Zamboanga del Norte
Occidental Mindoro
36
40
1. Compute the distance of the epicenter from each of the stations using this formula:
d time difference x 100 km
8 seconds
where: d= distance (km)
td = time difference in the arrival time of P-wave and S-wave (seconds)
This formula is suited because 8 seconds is the interval between the times
of arrival of the P-wave and S-wave at a distance of 100 km.
2. Choose one of the recording stations and measure the computed distance on the scale (the
scale of the map is 1 cm: 100 km). Set your compass for that computed distance. Center your
compass on the station you have chosen. Draw a circle.
3.Repeat steps 3 and 4 for the rest of the stations. You should get three circles that intersect or
nearly intersect at a point. This intersection is the epicenter.
4. Analyze the computed data from the table by determining the pattem shown and explain how
arithmetic sequence is applied. Write it in a paragraph form.
Transcribed Image Text:Procedure: Study the data showing the difference in the arrival time of P-wave and S-wave on three seismic recording stations. Time difforence in the Recording Station Distance of opicentor from the station (km) arrival timo of P-wave and S-wave (seconds Samar 32 Zamboanga del Norte Occidental Mindoro 36 40 1. Compute the distance of the epicenter from each of the stations using this formula: d time difference x 100 km 8 seconds where: d= distance (km) td = time difference in the arrival time of P-wave and S-wave (seconds) This formula is suited because 8 seconds is the interval between the times of arrival of the P-wave and S-wave at a distance of 100 km. 2. Choose one of the recording stations and measure the computed distance on the scale (the scale of the map is 1 cm: 100 km). Set your compass for that computed distance. Center your compass on the station you have chosen. Draw a circle. 3.Repeat steps 3 and 4 for the rest of the stations. You should get three circles that intersect or nearly intersect at a point. This intersection is the epicenter. 4. Analyze the computed data from the table by determining the pattem shown and explain how arithmetic sequence is applied. Write it in a paragraph form.
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