Scientists use seismographs to monitor earthquakes. Though, a seismograph merely registers an earthquake. By using at least three seismograph stations, and using triangulation, the epicentre of the earthquake is able to be plotted.
Educated guesses (Statistical data, probability, etc). There is no known method for predicting (forecasting) when an earthquake might strike. Seismographs are used to detect but cannot predict earthquakes.
Geologists have developed instruments to measure changes in elevation in tilting of the land surface and ground movements along fault
Seismometers or Seismographs are instruments that measure motions of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions, and other seismic sources.
seismographs
A seismograph itself cannot prevent the effect of an earthquake. It is an instrument that measures and records seismic waves generated by an earthquake. The data collected by seismographs helps scientists study and understand earthquakes, which in turn can contribute to improved building codes and earthquake-resistant infrastructure. Preventing the effect of an earthquake requires engineering solutions such as designing structures to withstand seismic forces or implementing early warning systems.
They are scientists which monitor, record and forecast about earthquakes
They do not predict earthquakes.
seismographs
Seismology: the study of the vibrations from earthquakes, recorded on seismographs.
seismographs
Earthquakes are detected and measured using seismometers or seismographs.
Seismographs are used to measure earthquakes, and how violent they are.
Scientists use seismographs.
The motion of the earthquakes around you.
seismometers and seismographs
Seismographs can detect earthquakes from far beyond 100 miles if sensitive enough. Sometimes many instruments at great distances are used to calculate the severity of the quake.
They use seismographs and the richter scale to determine their size.