| Date: | 2021-07-04 |
| Time: | 1518 |
| Geyser: | Event Non-Geyser Related |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2021-07-04 16:50:04 |
| Time Uploaded: | 2021-07-04 16:50:04 |
| Entrant: | JSJ |
| Observer: | |
| Submitted to: | |
| Comments: | Shock waves from a magnitude 4.1 earthquake that hit Wyoming's Bighorn Basin (east of Thermopolis & southeast of Worland) arrived at Yellowstone's seismic network. See: https://earthquake.usgs.gov/earthquakes/eventpage/us7000eiql/executive |