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Epicenter location 6th

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samuelchoi28

The document discusses how the difference in arrival times between P and S-waves at seismic stations can be used to locate an earthquake's epicenter. It explains that the longer the difference in times between stations, the further away the epicenter is located. An example shows how comparing the differences in arrival times between 4 stations could identify which station is closest and furthest from the epicenter.

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Epicenter Location 32R
Epicenter Location ?When an EQ happens, it travels in all directions from the focus
Epicenter Location ?If you feel an EQ, you won¡¯t know which direction it came from ???
Epicenter Location ?To locate epicenter, need: ?3 EQ stations ?Seismogram recordings ?Difference in time between P and S-wave
Epicenter location 6th
Epicenter Location ?The difference in arrival times of P-waves and S-waves tells you how far away epicenter is Difference in time? 4-1 = 3 seconds
Epicenter Location ?The difference in arrival times of P-waves and S-waves tells you how far away epicenter is ?The longer the time, the further away from EQ 4-1 = 3 seconds
?Which city is closest to the earthquake? ?Which earthquake is the furthest?
6 minutes 2 minutes 4 minutes 3 minutes Which earthquake is the closest? Furthest? Time difference
6 minutes 2 minutes 4 minutes 3 minutes Which earthquake is the closest? Furthest? Time difference
The data below is a recording for an EQ at one of these epicenters (A-D). Which one is it?
The data below is a recording for an EQ at one of these epicenters (A-D). Which one is it?
The data below is a recording for an EQ at one of these epicenters (A-D). Which one is it?
Which city is closest to the EQ?
LA, then Santa Barbara, then Palmdale, then San Bernardino
Which EQ did all four 15 seconds 40 seconds 41 seconds 56 seconds

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Epicenter location 6th