pulse
Palmer Station, Antarctica (seismic) archived on March 31, 2025
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spectrogram

Annotated events during this period:

Time (UTC) Mag Lat Lon Depth Description ======================== === ====== ====== ===== =========== Mon Mar 31 15:54:19 2025 5.6 -10.05 119.04 6 Indonesia (72 km SSW of Tambolaka, Indonesia) Sun Mar 30 15:33:48 2025 5.8 -20.31 -173.72 6 Tonga (86 km SE of Pangai, Tonga) Sun Mar 30 15:04:54 2025 6.2 -20.43 -173.87 6 Tonga (85 km SE of Pangai, Tonga) Sun Mar 30 12:18:47 2025 7.0 -20.33 -173.91 7 Tonga (73 km SE of Pangai, Tonga) 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 : 0.005762
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 Apr 1 00:01:38 UTC 2025 (about 1 year ago)
Metadata source : auto-archived factoids