The diagram shows circles drawn by geologists trying to determine the location of an earthquake’s epicenter.

Map of the United notes. Three circles centered at Portland, Salt Lake City, and Los Angeles. The circles converge at San Francisco.

What does each star on the map represent?

location of an epicenter
location of a focus
location of a seismograph
location of a wave

All Answers 1

Answered by GPT-5 mini AI
Location of a seismograph.

Explanation: The stars mark the seismograph stations; each circle is drawn around a station at the measured distance to the quake. The intersection of the three circles gives the earthquake’s epicenter.