« SAO1A »
Hollister, CA, USA (seismic)

This near-real-time audio stream originates from a seismometer at Hollister, CA, USA (BK station SAO). The low-frequency sounds of the solid Earth have been speeded up by a factor of 1,800× to make them audible. As a result, frequencies have been transposed upward by about 11 octaves. Each successive audio program (separated by a brief pause) compresses the last 168 hours into about 6 minutes (exactly 05:36) of listening time.

Spectrogram loading...

Annotated events during this period:

Technical details:

Station : SAO (net: BK) at Hollister, CA, USA
Sensor : Streckeisen STS-1/E300 VBB Feedback Seismometer
Recorder : Quanterra Q330HR-GFE @ 40 Hz
Pod : eos@x.x.0.80 | macOS 10.12.6 | esound v. 134
Last heard from pod : Wed Dec 19 16:29:17 UTC 2018 (about 3 minutes ago)
Speedup : ×1,800
Loop duration (real) : 168 hours
Loop duration (audio) : 05:36 (stereo)
Data channels : miniseed (BK.SAO.00.BHN BK.SAO.00.BHE)
Spectrogram type : raw data
Gain correction : 20 dB
SoX post-processing : highpass -2 90 highpass -2 90
compand 0.001,0.01 6:-80,-50,-40,-10,0,-3
Archives : 2018 | 2017
SHOUTcast : http://174.138.63.51:8030/;stream (es16@8030)

→ PSM system health