| Date: | 2010-07-31 |
| Time: | 2330 |
| Geyser: | Fan and Mortar |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 33 minutes |
| Standardized Duration: | 33m |
| Time Entered: | 2013-07-11 21:16:17 |
| Time Uploaded: | 2019-05-13 21:48:23 |
| Entrant: | Tara |
| Observer: | Suzanne Strasser |
| Submitted to: | Geysertimes.org |
| Comments: | Main Vent started roaring 55 minutes before the start of the eruption. The start of the splashing was impossible to see due to darkness and steam. There was one River pause lasting approximately 4 minutes. Bottom Vent had one eruption with a duration of approximately 5 minutes. The minor vents went into lock about 17 minutes after the start of River and the eruption started with Main Vent about 26 minutes after River. |