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Seismologists use a procedure called triangulation to determine which characteristic of an earthquake?
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What is the minimum number of seismic stations needed to determine the location of an earthquake epicenter?
The minimum number of seismic stations needed to determine the location of an earthquake's epicenter is THREE.
The method used to determine the epicenter of an earthquake is called?
earth method
One seismogragh can determine?
The distance to the epicentre of an earthquake and it's magnitude.
What determines the speed of a seismic wave?
By measuring the difference in arrival times at a seismometer station they can be used to determine the distance to the epicentre of an earthquake. They may also be used to estimate the properties of the subsurface and it's structure (refraction and reflection seismology). Please see the related questions for further information.
What scale is used to determine an earthquakes density?
The Richter Scale is used to determine the earthquake density. The scale is measured from low as 1 to high as 10.
How do seismologists determine an earthquake's starting time?
To calculate an earthquake's starting time, seismologists compare seismograms and note the differences in arrival times of P and S waves.
What do seismologists use to determine when an earthquake started?
Seismologists use seismograms to calculate when an earthquake started. AND EARTHQUAKES START WHEN ROCK SLIPS SUDDENLY ENOUGH ALONG A FAULT TO CREATE SEISMIC WAVES!
The spread of P-waves and S-waves can help seismologists to determine the?
distance to the epicenter of an earthquake. [:
Do Geologists use the difference in the arrival time of P and S waves at a seismograph to determine the magnitude of an earthquake?
No. Seismologists (a type of geophysicist) use the difference in the arrival time of P and S waves to estimate the distance from the seismometer station to the epicentre of the earthquake.
Why do scientists need three seismographs?
It takes three seismographs to locate an earthquake. Scientists use a method called triangulation to determine exactly where the earthquake occurred. If a circle is drawn on a map around three different seismographs where the radius of each is the distance from that station to the earthquake, the intersection of those three circles is the epicenter.
How can scientist tell how far the epicenter of an earthquake is from a seismometer station?
They need three stations to accurately tell where the location of something is. By measuring the time where it hit one station to the next, they can determine its location through a process called triangulation.
How can geologists tell where the epicenter of an earthquake is?
The epicenter refers to the point on the earth's surface above the focus of an earthquake. Geologists determine the epicenter with the use of 3 seismographs. This method is called triangulation.
Why do electric pylons have triangulation?
Triangulation is used to determine the position of points on the Earth's surface, including pylons. Pylons use triangles in their construction because a triangle is a very strong and stable structure.
What is the process that is used to find an earthquake's epicenter?
Triangulation. First, they calculate the time between the first and second - primary and secondary - seismic waves created in an earthquake and use this information to determine how far the seismometer is from the epicenter of the earthquake. A circle is drawn around the seismometer so that it is in the center and the radius is equal to the calculated distance. Using this information from three different seismometers, two more circles are drawn and the intersecting point of the three circles is where the epicenter of the earthquake is located.
The seismic waves of an earthquake are useful in determining?
The waves of earthquakes help us determine information about the interior of the earth. The more geologists know about the interior of the earth, the better they can predict earthquakes and other changes in the formation of the Earth's crust.
What is used to determine the earthquakes intensity?
Seismologists estimate earthquake intensity based on the reports of witnesses on the level of felt ground movement, on the amount of damage caused by an earthquake and also based on the ground accelerations as measured by seismometers. The scale used to define earthquake intensity in much of the world is the Modified Mercalli scale (before this, a scale known as the Rossi-Forel scale was used). In Europe the Macroseismic scale is in use.
What is the difference of the P waves and S waves used to locate an earthquake's epicenter?
P waves, also called primary waves, are the first waves to be registered on a seismograph. The S waves, or secondary waves, are the second and slower wave to register on the seismograph. When locating an earthquakes epicenter seismologists take the first reading of the P wave, and then take the reading from the S wave. At the station of where the earthquake was recorded, seismologists draw a large circle from where the earthquakes epicenter could be. TO exactly located the earthquakes epicenter there needs to be at least 3 dfferent staions where the earthquake hit to determine its epicenter using the S and P time interval.
