Three seismograph stations mapped their distances from an earthquakes epicenter on this map. in what city did the earthquake occur? (bankok, hanoi, seoul, manila)

  In Hanoi.

Explanation:

  Hanoi is the only place where the three circles converge at the same point, the epicenter. The other options given are very far from the epicenter and they are located in places where only two seismograph stations would be able to map the epicenter.

  I hope this answer helps you.

what are the options