Answer:
I'm happy to help interpret this information!
The question is asking for the origin time of an earthquake, which refers to the exact time at which the earthquake occurred. This information is typically recorded and reported in Universal Time (UTC) to avoid confusion with local time zones. The answer to this question would require access to the specific data set or report that contains the earthquake's origin time.
The question is asking about which seismograph recorded the earliest and latest P-wave arrival. P-waves, or primary waves, are the fastest seismic waves and are the first to arrive at a seismic station after an earthquake. The answer to this question would require access to the specific data set or report that contains the arrival times of P-waves at each seismograph station. The seismograph that recorded the earliest P-wave arrival would have detected the seismic waves first, while the one that recorded the latest P-wave arrival would have detected the waves last.
The question is asking what the difference in P-wave arrival times between seismographs suggests about their relative locations. Seismographs that are closer to the earthquake's epicenter would typically record earlier P-wave arrivals, while those that are farther away would record later arrivals. Therefore, the difference in P-wave arrival times between seismographs can provide information about the relative distances of each seismograph from the earthquake's epicenter.