Seismometers are crucial tools for understanding Earth’s internal structure and for disaster preparedness. These instr
(uments) are us
(ed) to det
(ect) and mea
(sure) ground move
(ments) caused b
(y) earthquakes a
(nd) other seismic eve
(nts). They wo
(rk) by conve
(rting) ground vibrations into electrical signals, which are then recorded as seismograms. The earliest seismometer, known as a seismoscope, was invented in 132 C.E. by the Chinese scientist Zhang Heng. Modern seismometers are highly sensitive and can identify movements along multiple axes, providing detailed data on the magnitude and location of seismic activity.
