| BRADYSEISMS | • bradyseisms n. Plural of bradyseism. • BRADYSEISM n. a slow up-and-down movement of the earth's crust. | 
| ISOSEISMALS | • isoseismals n. Plural of isoseismal. • ISOSEISMAL n. a line connecting points of same earthquake intensity, also ISOSEISMIC. | 
| ISOSEISMICS | • ISOSEISMIC n. a line connecting points of same earthquake intensity, also ISOSEISMAL. | 
| MICROSEISMS | • microseisms n. Plural of microseism. • MICROSEISM n. a small earth tremor. | 
| SEISMICALLY | • seismically adv. In a seismic manner; with the qualities of an earthquake. • SEISMICAL adv. relating to earthquakes, also SEISMAL, SEISMIC. | 
| SEISMOGRAMS | • seismograms n. Plural of seismogram. • SEISMOGRAM n. a seismograph record. | 
| SEISMOGRAPH | • seismograph n. An instrument that automatically detects and records the intensity, direction and duration of earthquakes… • SEISMOGRAPH n. an instrument for recording earthquakes. | 
| SEISMOLOGIC | • seismologic adj. Relating to the field of seismology. • SEISMOLOGIC adj. related to seismology, also SEISMOLOGICAL. | 
| SEISMOMETER | • seismometer n. (Geology) A device used by seismologists to detect and measure seismic waves and therefore locate earthquakes… • SEISMOMETER n. an instrument for measuring earthquake intensity. | 
| SEISMOMETRY | • seismometry n. The numerical or spatial measurement of earthquakes. • SEISMOMETRY n. the scientific study of earthquakes. | 
| SEISMONASTY | • seismonasty n. A nastic response to touch or vibration. • SEISMONASTY n. response to mechanical shock. | 
| SEISMOSCOPE | • seismoscope n. An instrument that indicates the occurrence of an earthquake. • SEISMOSCOPE n. an instrument for detecting earthquakes. |