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seismogram
[ sahyz-muh-gram, sahys- ]
noun
- a record made by a seismograph.
seismogram
/ sīz′mə-grăm′ /
- The record that is produced by a seismograph.
Word History and Origins
Origin of seismogram1
Example Sentences
The magnitude 7.8 ShakeOut quake would be more than 12 times bigger than the Northridge quake as measured on a seismogram.
He added: "The seismogram signals from each event are almost identical to each other."
Whereas the seismogram from the Beast Quake clearly measured the ground shaking from an enthusiastic fan base over a 60-second period, seismologists say concerts are a little trickier.
“You might expect to see a flat line on the seismogram, but motion is always there,” said Steve Caron, 54, a business systems analyst and citizen scientist who streams his device’s live data on YouTube from Chino Hills, Calif. The seismogram Caron refers to is a recording of the ground’s movements, via a graph that shows time on its horizontal axis, and ground displacement on its vertical axis, usually measured in nanometers.
Gravitational signals show up on seismometers before the arrival of the first seismic waves, in a portion of the seismogram that’s traditionally ignored.
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