pulse
Palmer Station, Antarctica (seismic) archived on June 29, 2025
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spectrogram

Annotated events during this period:

Time (UTC) Mag Lat Lon Depth Description ======================== === ====== ====== ===== =========== Sun Jun 29 01:15:25 2025 5.4 29.34 129.40 5 Japan (100 km NNW of Tatsugō, Japan) Sat Jun 28 08:32:21 2025 6.6 -60.96 -38.95 7 Scotia Sea Sat Jun 28 04:17:08 2025 5.5 -19.83 -176.09 6 Tonga (169 km NNW of Houma, Tonga) Total: 3 events.

About this archived stream:

Station : PMSA (network: IRIS/USGS) at Palmer Station, Antarctica
Sensor : STS-1VBB_w/E300
Recorder : Q330 @ 100 Hz
Pod : ms-rhea@x.x.31.38 | macOS 15.3 | psm v. 178
Speedup : ×500 (transposed up about 9 octaves)
Loop duration (real) : 48 hours
Loop duration (audio) : 05:45 (stereo)
Data channels : miniseed (IU.PMSA.00.BH1 IU.PMSA.00.BH2)
RMS : 0.016824
Spectrogram type : raw
Gain correction : 25dB
SoX post-processing : highpass -2 90 highpass -2 90
compand 0.001,0.01 6:-80,-50,-40,-10,0,-3
Archived on : Mon Jun 30 00:03:39 UTC 2025 (about 10 months ago)
Metadata source : auto-archived factoids