Note 18979

Geyser:Event Non-Geyser Related
Date/Time:2021-08-21 @ 1904
Entrant:JSJ
Observer:
Time Entered:2021-08-21 20:01:14
Time Uploaded:2021-08-21 20:01:14
Submitted to:Geysertimes.org
Note:Shock waves from a magnitude 6.8 earthquake that hit the South Sandwich Trench area in the far-southern Atlantic Ocean arrived at Yellowstone's seismic network. Took ~19 minutes for the waves to arrive.

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