Seismograph records an earthquake on the sheet of measuring paper. Seismological device for measuring earthquakes. Earthquake wave on graph paper. Hum Stock Photo - Alamy
Measuring Earthquakes. (1) How are earthquakes studied? – or, seismograph, an instrument that measures ground vibrations seismometer – or, seismograph, - ppt download
Which instrument measures and records vibrations within the Earth and on the Earth's surface? - Quora