htr
seismograph
sonargraphs and or the richter scale
A seismograph is an instrument used to measure movement of earthquake. It measures the seismic waves of that area.
the Richter scale is used to measure the power, strength of an earthquake
Stestmophology
A seismograph is an instrument that measures and records earthquake waves.
A seismogram is a record of an earthquake that's obtained from a seismic instrument. It's in the form of a graph.
The instrument that can measure the density of an earthquake is called an seismometer. The first seismoscope dates back to 132 AD.
seismographs
A seismograph
Seismagraph
seismograph
A seismograph.
A Seismograph
Seismometer
seismograph