Seisometers are used to measure how much the ground moves, but the only real way to detect them is to look at previous records as to how long it has been since an earthquake; if it a long time, an earthquake could happen soon.
They use seismometers, Richter scales and seismographs.
Seismographs are instruments that record earthquake waves
to measure the size of an earthquake they use a device called a seismogram. They record the distance and severity of the earthquakes.
Seismograms to measure the size of an earthquake and seismographs to measure seismic waves .
a seismograph
Seismologists or geologists, respectively.
Seismologists
Seismologists or geophysical scientists.
Seismologists usually work in areas of regular tectonic activity, or on university campuses.
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.
seismologists
Seismologists use seismograms to calculate when an earthquake started. AND EARTHQUAKES START WHEN ROCK SLIPS SUDDENLY ENOUGH ALONG A FAULT TO CREATE SEISMIC WAVES!
Seismologists or geologists, respectively.
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.
seismologists
Seismologists study earthquakes. Charles Francis Richter was probably the most famous seismologist
One who studies earthquakes
Seismologists are people who study earthquakes and the propagation of earthquake waves (more correctly termed seismic waves) through the Earth.
they use tools
The answer is tools!
tools!what tools
They are called seismologists.