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They Use A Seismograp and look at the squiggles on the paper.
Earthquakes
triangulating its loction
The S-P time method is perhaps the simplest method seismologists use to find an earthquake's epicenter. +++ No it's not. That finds its Focus. The Epicentre is the point of maximum movement on the land surface above the slip itself.
From Science Explorer Prentice Hall Earth Science: " Geologists use seismic waves to locate an earthquake's epicenter. Seismic waves travel at different speeds. P waves arrive at a seismograph first, with S waves following close behind. To tell how far the epicenter is from the seismograph, scientists measure the difference between the arrival time of the P waves and S waves. The farther away an earthquake is, the greater the time between arrival of the P waves and the S waves." Did this help?
Geologists use circles to find the epicenter of an earthquake.
the find the epicenter the find the focus from the epicenter
yes it can
I got it from my science book its geologist use seismic waves to locate the earthquakes epicenter (that's what the circle center is epicenter)
I got it from my science book its geologist use seismic waves to locate the earthquakes epicenter (that's what the circle center is epicenter)
I got it from my science book its geologist use seismic waves to locate the earthquakes epicenter (that's what the circle center is epicenter)
Seismologist use a seismometer or seismograph to record the P and S-wave arrival times.Please see the related question for detail on how this is used to locate an earthquake epicenter.Geologists use seismic waves to locate an earthquake's epicenter.
Scientists use a computer to locate the epicenter because it would be dangerous to go out there and locate it.... and they never know about any after shocks......
I think you mean "Focus": the Epicentre is the point of maximum movement on the surface above, and that's usually obvious. The focus is located by triangulation and velocity calculations from seismograph data.
To locate the epicenter you use the speed of waves that travel from the epicenter to the seismic sensor locations. With two sensors you are able to narrow the location to two places (when on a surface using intersecting hyperbolas). With a third sensor you have the location on a surface and below ground. This third sensor is why they call it tri - angulation but the angles are hard to find without HS trigonometry and other mathematics.
Seismologists use the data from triangulated seismographs to locate an earthquake's epicenter. The difference in time between the arrival of p and s waves at a seismometer tells the distance to the epicenter of an earthquake. To get the exact location, scientists must collect data from at least three seismometers. The point where all three circles is the epicenter of the earthquake. +++ The Epicentre is generally obvious: it is the point of maximum disturbance on the surface. The centre of the actual slip is the Focus, and this has to be calculated from seismograph data by triangulating from wave velocities.
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