how does a scientist detect an earthquake?

Answer 1

With a seismograph

Answer 2

A "seismograph", or "seismometer", is actually pretty simple. It uses a heavy weight, suspended by cord, or a spring, and attached to some type of force sensor. Any vibrations in the ground, however small, will cause the weight to "jiggle" or bounce up and down slightly, this is then picked up and measured by the sensor. Old fashioned versions simply had a small pulley or lever that was attached to a pen and a a spool of paper. By using a cluster of several sensitive seismometers, you can cancel small vibrations caused by sound and it is possible to detect earthquakes on the other side of the globe.

Answer 3

Scientists can usually tell when an earthquake will happen beforehand so that people in that area will be prepared to deal with this natural disaster. The intensity of the Earthquake is measured with a Seismograph.

Answer 4

ok, right here's a working occasion rationalization :) Push your palms jointly hard, pull one upward, and one downwards incredibly hard. formerly they slip, you will see that they slip very small quantities, increasing as much as the element the place they slide previous one yet another. that's distinctly lots the comparable with earthquakes, they provide off very small tremors formerly a considerable earthquake, and advance the nearer an earthquake is. Scientists placed probes deep into the floor close to a fault, and degree those tiny vibrations, and whilst they degree a marked advance, document an earthquake warning. that's lots from an exact technology, regrettably. in spite of the undeniable fact that they are getting extra effective and extra effective at predicting earthquakes.

Answer 5

Scientists can examine changes in animal behaviour as some animals are sensitive to the slighest change in thier environment. This is not usually 100% accurate so as such it is used in conjunction with frequent seismograph readings. It is not accurate as it may be the breeding time for some particular animals; as a result they would be lively and tense.

Answer 6

Seismometers are used by seismologists to measure and record the size and force of seismic waves. By studying seismic waves, geologists can map the interior of the Earth, and measure and locate earthquakes and other ground motions.

Answer 7

I remember when we had a slight tremor many years ago. I felt the computer keyboard tremble under my fingers and keys hanging in the lock of a cupboard were swinging away.

It was really strange.

Answer 8

With a seismometer. One can then analyse & interpret the readings and find out what is/has been going on.

Answer 9

when the earth is shaking and she goes "hey did you feel that?"

Or, with a seismograph/seismomiter

Answer 10

They have any number of machines that measure the movement of the earth during the quake.

They can't predict them.