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Aug 14, 2024 · seismograph, instrument that makes a record of seismic waves caused by an earthquake, explosion, or other Earth -shaking phenomenon. Seismographs are equipped with electromagnetic sensors that translate ground motions into electrical changes, which are processed and recorded by the instruments’ analog or digital circuits.
- The Editors of Encyclopaedia Britannica
A seismogram is the recording of the ground shaking at the specific location of the instrument. On a seismogram, the HORIZONTAL axis = time (measured in seconds) and the VERTICAL axis= ground displacement (usually measured in millimeters).
Jul 26, 2011 · The meaning of SEISMOGRAM is the record of an earth tremor by a seismograph.
A seismogram is a graph output by a seismograph. It is a record of the ground motion at a measuring station as a function of time. Seismograms typically record motions in three cartesian axes (x, y, and z), with the z axis perpendicular to the Earth's surface and the x- and y- axes parallel to the surface.
Jan 1, 2021 · Seismogram interpretation, described in this article, is essentially devoted to the art of identification of various seismic “arrivals” or wave types visible on seismograms.
Apr 19, 2014 · In simplest terms, it simply means that: if the source signal is shifted by some amount of time Δt, but otherwise unchanged, then the seismogram will also be shifted by Δt, but otherwise unchanged; and. the seismogram generated by the sum of two (or more) source signals is the sum of the seismograms that would've been generated by each of the ...
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A recording of Earth motion as a function of time, created by a seismograph is called a seismogram. A seismologist is a scientist works in basic or applied seismology. History. Scholarly interest in earthquakes can be traced back to antiquity.
