Long period ground motion

Long period ground motion is ground movement during an earthquake with a period of 2 to 10 seconds. [1] The frequency of such waves is 1 Hz or lower, placing them in the infrasonic part of the audio spectrum.

See also

References
  1. "News Navigator: What is 'long-period ground motion' in earthquakes?". Mainichi Daily News. 2021-10-09. Retrieved 2023-09-24.
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