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SJG: San Juan, Puerto Rico (seismic)

This near-real-time audio stream originates from a seismometer at San Juan, Puerto Rico (IRIS/USGS station SJG). The low-frequency sounds of the solid Earth have been sped up by a factor of 1,000× to make them audible. As a result, frequencies have been transposed upward about 10 octaves. Each successive audio program (separated by a brief pause) compresses the last 96 hours into about 6 minutes (exactly 05:45) of listening time.

Spectrogram loading...

Annotated events during this period:

Technical details:

Status :   (Operating normally)
Manual flags : (none)
Station : SJG (net: IRIS/USGS) at San Juan, Puerto Rico
Sensor : Trillium 360
Recorder : Q330 @ 40 Hz
Pod : ms-selene@x.x.161.223 | macOS 10.14.5 | esound v. 160
Last heard from pod : Sat Mar 25 10:08:25 UTC 2023 (about 2 minutes ago)
Speedup : ×1,000
Loop duration (real) : 96 hours
Loop duration (audio) : 05:45 (stereo)
Data channels : miniseed (IU.SJG.00.BH1 IU.SJG.00.BH2)
Spectrogram type : raw data
Gain correction : 25 dB
SoX post-processing : highpass -2 90 highpass -2 90
compand 0.001,0.01 6:-80,-50,-40,-10,0,-3
Archives : 2023 | 2022 | 2021 | 2020 | 2019
SHOUTcast : http://174.138.63.51:8054/;stream (es28@8054)
Latest factoids : sjg.4.factoids.txt