Author Question: The minimum number of seismograph records needed to locate the epicenter of an earthquake is ... (Read 77 times)

fnuegbu · **on:** Jul 15, 2018

The minimum number of seismograph records needed to locate the epicenter of an earthquake is
___________________ _. Fill in the blank(s) with the appropriate word(s).

Question 2

The velocities of P- and S-waves are determined by these two properties of the material they are
passing through: ___________________ _ and ___________________ _. Fill in the blank(s) with the appropriate word(s).