| Date: | 2015-05-19 |
| Time: | 1358 |
| Geyser: | Grotto |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2015-05-19 22:38:42 |
| Time Uploaded: | 2016-08-05 12:27:13 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | Geysertimes.org |
| Comments: | Intermittent splashing at 1357. Sustained splashing eruption at 1358 onward. Accompanied by start of Rocket minor eruption splashing and start of Central Vents eruption spouting. |