Answer:
The correct answer is "The epicenter was either at location 1 or 2".
Explanation:
At least the information of three recording stations are necessary to undoubtedly calculate the location of an earthquake epicenter. The point at which the three circles overlap will mark the location of the epicenter. In this case we only have the seismograph data from two recording stations, therefore is not possible to determine the location of the epicenter. However, we can determine that the epicenter was either at location 1 or 2, the two points at which the circles overlap. I attached the missing figure.
