Measurement and recording of teluric movements . It is formed by the Greek voices 963; 949; 953; 963; 956; 959; 962; ( six-burns "earthquake" ) 947; 961; 945; 966; 949; 953; 957; ( graphein "write" ) .
It is the graph that represents the teluric movements, tremors or earthquakes. Graphical representation of a seismic movement . Paper describing a tremor in the seismograph.