Reflecting. . .
| 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: | |
| 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. |