Different Frequency Bands in DMT

Submitted by kcecire
Published: | Group(s):
LIGO e-Lab Workshop Facilitators

Dale Ingram of LIGO sent a nice description:

  • 0.03 - 0.1 Hz -- Large distant quakes (>6.5); the seismic effects of strong local winds.
  • 0.1 - 0.3 Hz -- Large distant quakes (>7); microseisms (from ocean waves).
  • 0.3 - 1 Hz -- Nothing of note.  This is the quietest band, with no significant environmental drivers other than small shallow nearby earthquakes.
  • 1 - 3 Hz -- Heavy vehicles at distances up to several miles from the site; distant industrial activity; small shallow nearby earthquakes.
  • 3 - 10 Hz -- Vehicle traffic, local human activity at the observatory.

Bonus: LIGO and Virgo detector geometries.