Seismic waves / seismicity.
a Seismograph measure earthquake vibrations
Its vibrations.
A seismograph measures the vibrations given off by an earthquake. Even the smallest earthquakes give off these vibrations.
A seismoscope is an instrument used to measure vibrations of the earth's crust. Generally, scientists use these readings to predict when an earthquake will strike. They can also use this to measure the length and magnitude of an earthquake.
These vibrations change speeds and directions when they go into different layers of the Earth.
Seismic Waves
yes they are
The amount of destruction caused by earthquake vibrations is affected by factors such as the magnitude of the earthquake, the proximity of the earthquake to populated areas, the type of soil and rock present in the region, and the construction standards of buildings and infrastructure.
sciesmic waves ;]
seismic waves
earthquake
A seismograph is used to detect vibrations and motions in the Earth's crust. These tremors are usually due to friction between tectonic plates (earthquakes) or huge powerful volcanic activity. - hope that helps