GEOLOGY

Detailed explanation-1: -Scientists use triangulation to find the epicenter of an earthquake. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. Every earthquake is recorded on numerous seismographs located in different directions.

Detailed explanation-2: -Tracings made at three separate seismic stations are needed to locate an earthquake epicenter. Objective: To identify the location of an earthquake epicenter using a travel time graph and three seismograph tracings. Materials:. Ruler map P and S Travel Time Curve Procedure: 1.

Detailed explanation-3: -Three or more seismograph stations are needed to locate the epicenter of an earthquake through triangulation . Using the arrival-time difference from the first P wave to the first S wave, one can determine the distance from the epicenter, but not the direction.

Detailed explanation-4: -In theory, at least 3 stations are needed in order to locate the epicenter of an earthquake. This is called the triangulation method. Three circles, which represent the location of the seismograph station, are drawn in the map. The point where these three intersect is the epicenter of the earthquake.