The __________Is a Direct Measure of the Distance from a Seismic

Multiple Choice

The __________is a direct measure of the distance from a seismic station to the focus of a distant earthquake.

A) time elapsed between the first P- wave arrivals from the first and last aftershocks
B) time interval between the first P and S- wave arrivals
C) magnitude of the ground acceleration of surface wave passing a station
D) how long before the earthquake your animals started acting agitated