PMEL Acoustics Program logo National Oceanic and Atmospheric Administration Pacific Marine Environmental Laboratory Acoustics Program
 

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

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  tremor spectrogram CoAxial spectrogram EPR spectrogram .
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  Loihi spectrogram Gorda spectrogram .
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Marine Mammals

 
 

Note time and frequency scales are not identical, spectrograms displayed together for a general comparison of images.

Click on image "name" for a complete description of the sound.

Click on spectrogram for full-size, scaled image.

 

 

time direction

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  NE Pacific blue whale spectrogram Western Pacific blue whale spectrogram S Pacific blue whale spectrogram .
 
0-->60 Hz
0-->40 Hz
0-->40 Hz
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Fin Whale
Pacific
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  Atlantic blue whale spectrogram Atlantic fin whale spectrogram fin whale spectrogram .
   
0-->50 Hz
0-->50 Hz
0-->60 Hz
 
     
    Alaska humpback whale spectrogram 52 Hz spectrogram Atlantic minke spectrogram .
     
0-->500 Hz
0-->60 Hz
0-->50 Hz
 
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Man-made sounds

 
 
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

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  Brown spectrogram airgun spectrogram ship at phone spectrogram .
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  ship spectrogram sound source spec   .
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Cryogenic (Ice) Sounds

 
 
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
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  Iceberg calving "bloop" spectrogram   .
  Frequency (0-->50 Hz) .
 
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  Harmonic Tremor "slowdown" spectrogram   .
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