___ Stations Are the Minimum Needed to Determine the Location

Q21: A _ is the first wave to

Q22: The most important concentration of earthquakes by

Q23: _ is a measure of an earthquake's

Q24: Most earthquakes occur at great depths.

Q25: The elastic rebound theory involves the sudden

Q27: The Modified Mercalli Scale determines earthquake intensity,

Q28: Both P-waves and S-waves can pass through

Q29: Surface seismic waves originate at the epicenter

Q30: Perhaps 90 percent of the destruction in

Q31: _ are earthquake waves that cause the