a wave of energy that is generated by an earthquake or other earth vibration and that travels within the earth or along its surface.
an earth vibration generated by an earthquake or explosion
an elastic shock wave that travels through the earth, as from an earthquake or explosion; also, one of four distinct waves generated by an earthquake
noun 1. the natural activity or group of phenomena associated with earthquakes.
1. a combining form meaning “earthquake,” used in the formation of compound words: seismograph. combining form 1. earthquake: seismology
noun 1. any of various instruments for measuring and recording the vibrations of earthquakes. noun 1. an instrument that registers and records the features of earthquakes. A seismogram (ˈsaɪzməˌɡræm) is the record from such an instrument Also called seismometer seismograph (sīz’mə-grāf’) An instrument that detects and records vibrations and movements in the Earth, especially during […]
[sahyz-mog-ruh-fee, sahys-] /saɪzˈmɒg rə fi, saɪs-/ noun 1. the scientific measuring and recording of the shock and vibrations of earthquakes. 2. seismology.