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Volcanic Seismicity Recorded on Deep Ocean Hydrophones

Note time and frequency scales are not identical, spectrograms displayed together for a general comparison of images. Click on spectrogram for full-size, scaled image. Click on image "name" for a complete description of the sound.


time indicator

  tremor spectrogram CoAxial spectrogram EPR spectrogram
  Loihi spectrogram Gorda spectrogram