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R199D: Cambridge, MA, USA (seismic)

This near-real-time audio stream originates from a seismometer at Cambridge, MA, USA (Raspberry Shake station R199D). The low-frequency sounds of the solid Earth have been sped up by a factor of 50× to make them audible. As a result, frequencies have been transposed upward about 6 octaves. Each successive audio program (separated by a brief pause) compresses the last 3 hours into about 4 minutes (exactly 03:36) of listening time.

Spectrogram loading...

Annotated events during this period:

Technical details:

Status :   (Operating normally)
Manual flags : (none)
Station : R199D (net: Raspberry Shake) at Cambridge, MA, USA
Sensor : Racotech RGI-20DX geophone
Recorder : Raspberry Shake+Boom @ 100 Hz
Pod : inanna@x.x.10.37 | macOS 10.12.6 | esound v. 161
Last heard from pod : Sun Dec 4 22:39:50 UTC 2022 (15 seconds ago)
Speedup : ×50
Loop duration (real) : 3 hours
Loop duration (audio) : 03:35 (mono)
Data channels : miniseed (AM.R199D.00.EHZ)
Spectrogram type : raw data
Gain correction : 20 dB
SoX post-processing : highpass -2 1
Archives : 2022 | 2021 | 2020 | 2019
SHOUTcast : http://174.138.63.51:8056/;stream (rscam@8056)
Latest factoids : r199d.5.factoids.txt