How would the seperation between the p wave and s wave arrival at Savannah, GA compare to the data from the seismograph recorded in chicago, Il.
the recorded for the chicago is:
CHicago:
P wave arrival time: 08:57:45 pm
s wave arrival time: 09:02:05 pm
difference in arrival times:
00:02:20
distance to epicenter: 3000 km
To compare the separation between the P-wave and S-wave arrival at Savannah, GA to the data recorded in Chicago, IL, we need to consider the difference in arrival times and the distance to the epicenter.
First, let's analyze the data recorded in Chicago:
P-wave arrival time: 08:57:45 PM
S-wave arrival time: 09:02:05 PM
Difference in arrival times: 00:02:20 (2 minutes and 20 seconds)
Distance to epicenter: 3000 km
The difference in arrival times between the P-wave and S-wave in Chicago is 2 minutes and 20 seconds. This indicates the amount of time it took for the S-wave to reach the seismograph after the P-wave.
Now, let's compare this with the separation at Savannah, GA. To do so, we need to calculate the expected difference in arrival times based on the distance from the epicenter.
Given that the speed of P-waves is faster than S-waves, we can use the average wave speeds to estimate the time difference. The average speed of P-wave is approximately 8 km/s, while the average speed of S-wave is about 4.5 km/s.
Since the distance to the epicenter from Chicago is 3000 km, we can calculate the expected time difference as follows:
Time difference = Distance / Wave speed
For P-wave:
Time difference for P-wave = 3000 km / 8 km/s ≈ 375 seconds = 6 minutes and 15 seconds
For S-wave:
Time difference for S-wave = 3000 km / 4.5 km/s ≈ 666.7 seconds = 11 minutes and 6.7 seconds
From this calculation, we can see that the expected time difference between the P-wave and S-wave arrival in Savannah, GA, based on the distance of 3000 km, would be approximately 6 minutes and 15 seconds for the P-wave, and 11 minutes and 6.7 seconds for the S-wave.
Now, if you have the recorded arrival times for Savannah, GA, you can compare these estimated values with the actual arrival times to analyze the difference in separation between the P-wave and S-wave in both locations.