« SJG »
pulse
San Juan, Puerto Rico (seismic station SJG)

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-osiris@x.x.161.84 | macOS 12.6.3 | psm v. 176
Last heard from pod : Mon Mar 4 07:08:59 UTC 2024 (about 4 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 : 2024 | 2023 | 2022 | 2021 | 2020 | 2019
Audio Stream : https://audibleearth.com/proxy/es28/stream (es28@8054)
Latest factoids : sjg.3.factoids.txt