The trace or record of an earth tremor, made by means of a seismograph.
A graph showing the motion of the ground versus time. (See Figure 5.)
A visual record produced by a seismograph and showing the arrival times and magnitudes of various seismic waves.
record obtained on a seismograph.
a record from an instrument that measures the motion of the earth
a record of the ground shaking recorded by a seismograph
A record of an earthquake or ground vibration. The wave trace is made up of P-waves, S-waves and surface waves, the pattern of onsets of the first two arrivals help to determine the location. The seismogram can be either a paper record or a digital record that is analysed by computer.
A two- or three-dimensional record made by a computer that measures changes in the density of rock. Geologists analyze seismograms and use them to visualize the rock layers beneath the earth's surface that might reveal possible natural gas and/or oil traps.
A record of ground motion, generally produced by specialized instrumentation. Historically, seismograms have been recorded in diverse ways: by projecting a beam of light onto photographic film, by scratching the surface of a metal sheet, by suspending a pen above a sheet of paper, and by digitizing information for display on a computer screen.
a record produced by a seismographic survey
Recording of ground motions made by a seismograph.
Record of the movement of Earth's surface at a particular locality produced by an earthquake or other disturbance.
The record of an earthquake produced by a seismograph.
The visual record produced by a seismograph. It is used to determine the location and magnitude of the earthquake.
real-time record, made of metal tape, of seismic waves.
A written record of an earthquake.
A record written by a seismograph in response to ground motions produced by an earthquake, explosion, or other ground-motion sources.
The record (electronic or on paper) of the output of a seismometer (a device for measuring seismic waves).
A seismogram is a graph output by a seismograph. It is a record of the ground motion at a measuring station. The energy measured in a seismogram may result from an earthquake or from some other source, such as an explosion.