pulse
Palmer Station, Antarctica (seismic) archived on July 7, 2025
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spectrogram

Annotated events during this period:

Time (UTC) Mag Lat Lon Depth Description ======================== === ====== ====== ===== =========== Mon Jul 7 12:53:43 2025 6.3 -47.32 165.61 6 New Zealand (212 km WSW of Riverton, New Zealand) Sun Jul 6 20:31:43 2025 5.5 -21.00 -174.44 6 Tonga (65 km NE of ‘Ohonua, Tonga) Sun Jul 6 11:27:44 2025 5.4 -5.48 -76.96 5 Peru (61 km N of Moyobamba, Peru) Sun Jul 6 05:07:02 2025 5.5 29.38 129.55 6 Japan (102 km N of Tatsugō, Japan) Total: 4 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 : 0.017757
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 : Tue Jul 8 00:02:51 UTC 2025 (about 10 months ago)
Metadata source : auto-archived factoids