How do i solve this problem i need an answer?

I wrote it out on paper because it's really hard to explain in words. The image should be pinned or attached to this answer.

Geologists use  seismic waves to  locate an earthquake's epicenter.. 

Answer: the philippines has suffered from an inexhaustible number of deadly typhoons, earthquakes, volcano eruptions and other natural disasters. this is due to its location along the ring of fire, or typhoon belt – a large pacific ocean region where many of earth's volcanic eruptions and earthquakes occur.