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Today's helicorder plots

The helicorders show true (instrument-corrected) ground motions and atmospheric pressure variations.
The displays are in near-realtime and will update automatically approximately every 10 minutes.

  • AKN
    seismic (LP SP1 SP2)
  • ARC
    seismic (LP SP1 SP2), infrasound (LP SP1 SP2)
  • IS37
    infrasound (LP SP1 SP2), seismic (LP SP1 SP2), weather (WEATHER)
  • JETT
    seismic (LP SP1 SP2)
  • JMIC
    seismic (LP SP1 SP2)
  • NOA
    seismic (LP SP1 SP2)
  • NRS
    seismic (LP SP1 SP2), infrasound (LP SP1 SP2)
  • SPI
    seismic (LP SP1 SP2)
  • TROLL
    seismic (LP SP1 SP2)
  • BRB (Kola Science Centre, Russian Academy of Sciences, Apatity, Russia)
    seismic (LP SP1 SP2)
  • EKA (United Kingdom National Data Centre, AWE Blacknest)
    seismic (LP SP1 SP2), infrasound (LP SP1 SP2)
  • FINES (Institute of Seismology, Helsinki, Finland)
    seismic (LP SP1 SP2)
  • HFS (Swedish Defense Research Agency, Stockholm, Sweden)
    seismic (LP SP1 SP2)
  • HOPEN (Department of Earth Sciences, University Bergen, Norway)
    seismic (LP SP1 SP2)
  • HSPB (Institute of Geophysics, Polish Academy of Sciences, Warzawa, Poland)
    seismic (LP SP1 SP2)
  • KBS (IRIS/GFZ)
    seismic (LP SP1 SP2)

LP: Long-Period dynamic scaling, SP1: Short-Period dynamic scaling, SP2: Short-Period noise scaling

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