To find the epicenter (the point on the earth's surface where an earthquake begins) during earthquakes, one need to view the seismogram (a record of the ground motion), and at least two other seismographs recorded for the same earthquake. Other instruments such as a map, a compass for sketching circles on the map, a ruler, and a pencil will also be used.
The following are the steps of the triangulation process in the correct order to find the epicenter during earthquakes:
Step 1: Subtract the time of P wave arrival from S wave arrival.
Step 2: See what the time difference is equal to in distance on a seismic wave chart.
Step 3: Draw circles representing the distances from at least three seismograph stations to the epicenter on a map.
Step 4: Find the point where all 3 circles intersect, and you've found the earthquake's epicenter.
The distance between minutes of latitude is approximately 1.15 miles. There are 5280 feet in a mile, so there are 6072 feet in 1.15 miles. 1/60th of that is 101.2 feet.
To add to their income, farmers in India may "sell land to other farmers" since this can be a very profitable exercise that doesn't do much to decrease productivity of the primary farm.
The Global Positioning System aka. GPS, is a system of satellites, computers, and receivers that are able to determine the latitude and longitude of Earth by calculating time difference for signals from different satellites to reach the receiver.
According to YourDictionary.com
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