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With the help of seismograph you can find arrival time of secondary wave and primary wave. The difference in time in seconds multiplied by 8 will give you the distance of focus the starting point of earthquake. Even though the speed of these waves differs according the geographical condition the difference in speed is almost constant and it is 8 k/m per second. Therefore you can draw a circle from that station .The focus point should be some where on the circumference of the circle. When you get the data from other seismic station you can draw another circle from that station that will cut the previous circle in two points .One among the two point must be the focus point. When you draw the circle in the same way from third station this will pass through one among the two meeting point of the previous circles. This point is focus.The imaginary point just above focus on earth is the epicenter. To have clear idea about this visit my slide show .I have also found a new method to find the epicenter from single station using my direction finder to gether with seismograph.It is approximate quite enough to issue Tsunami warning. I have issued the warning 2 hours before Tsunami struck our Indian coast but it was ignored. My web site . please be patient to down load .
What else can I help you with?
What state is the epicenter located in?
The epicenter of an earthquake is located in the state where the earthquake originates.
What is the place on earth27s surface directly above the point where movement first occurs in an earthquake called?
The place on Earth's surface directly above the point where movement first occurs in an earthquake is called the epicenter. This is the point on the surface located vertically above the earthquake's focus (or hypocenter), where the seismic waves originate.
What is a sentence using epicenter?
The epicentre of the earthquake was 40 miles south of Tokyo.
Can you give me a sentence with the word epicenter?
The epicenter of the earthquake was located near the city center.
Where in this diagram would an earthquake's epicenter be located?
The epicenter of an earthquake would be located at the point directly above the focus (hypocenter) on the Earth's surface. In the diagram, it would be at the top point where the circle meets the surface.
What state is the epicenter located in?
The epicenter of an earthquake is located in the state where the earthquake originates.
Where is the earthquake's epicenter is located?
The epicenter is the surface located right above the focus, which is the center of an earthquake.
Where is an earthquake's focus located?
An earthquake's Focus is located directly under the Epicenter of an earthquake. The Epicenterof an earthquake is located on the surface of the earthquake.
Is an earthquake's epicenter located deep underground?
False, the focus is located deep underground. The epicenter is at ground level
Epicenter of lisbon earthquake?
Located in the Atlantic Ocean.
Where is an earthquake's epicenter located?
it is directly above the focus
Where is the epicenter of the earthquake located?
it is directly above the focus
Where was the Mexico City Earthquake epicenter?
The epicenter of the 1985 Mexico City Earthquake was located on the Cocos Plate subduction zone (18.35, -102.39).
What is the place on earth27s surface directly above the point where movement first occurs in an earthquake called?
The place on Earth's surface directly above the point where movement first occurs in an earthquake is called the epicenter. This is the point on the surface located vertically above the earthquake's focus (or hypocenter), where the seismic waves originate.
What is a sentence using epicenter?
The epicentre of the earthquake was 40 miles south of Tokyo.
Can you give me a sentence with the word epicenter?
The epicenter of the earthquake was located near the city center.
Where in this diagram would an earthquake's epicenter be located?
The epicenter of an earthquake would be located at the point directly above the focus (hypocenter) on the Earth's surface. In the diagram, it would be at the top point where the circle meets the surface.
