5) What is the MINIMUM number of seismograph stations needed to determine the location of an epicenter
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Three......
To find an earthquake epicenter you need at least three seismographs. Find the distance from each seismograph to the earthquake epicenter. The interception of the three circles is the epicenter.
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An earthquake's first p wave arrives at a seismic station at 12:00:00. This p wave has traveled 6000kms from the epicenter.
To find an earthquake epicenter you need at least three seismographs. Find the distance from each seismograph to the earthquake epicenter. The interception of the three circles is the epicenter.
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