Name Student # HW8: Earthquakes-1 (20 pts) What is the difference between the hypocenter and epicenter of an earthquake? Which one can be mapped on the surface of Earth? On the seismogram below, identify the surface wave, P-wave, and S-wave wave arrivals: The distance from the epicenter is proportional to what time difference seen on this seismogram? According to the Moment-Magnitude scale, the magnitude of an earthquake is related to the seismic moment. What three physical things determine the seismic moment when a fault slips to produce an earthquake?* *HINT: make sure you’ve watched the IRIS video embedded in your reading! Now use these same ideas to measure the S-P lag time for seismograms from the following locations. Note the time of day given on the x-axis. Write the lag time on each seismogram—you will use these in class Copy your answers onto this page, which you will TEAR OFF and use during the in-class activity:
Purchase answer to see full attachment