| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 21390 |
20 May 2022 @ 1807 |
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BobInSLC |
pump appears to be more energetic this year. |
| 14213 |
19 May 2020 @ 1207 |
19 May 2020 @ 1223 |
underarockphoto |
Webcam was on Pump entire time and I watched consistently. This time span can be considered a sample of current activity. |
| 14212 |
19 May 2020 @ 1157 |
19 May 2020 @ 1207 |
underarockphoto |
No large eruptive episodes were seen during this time - the camera then panned away. |
| 10683 |
29 Oct 2018 @ 1153 |
29 Oct 2018 @ 1254 |
udo |
Pump and Sponge appear to have returned to normal activity. Very little steam emanating from the disturbance breakout. |
| 10257 |
16 Sep 2018 @ 1102 |
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Graham |
Pump is active but the colorful runoff under the boardwalk is drying up. |
| 1218 |
02 Jun 2013 @ 1200 |
02 Jun 2013 @ 1800 |
JSJ |
Pump Geyser was engaged in its usual, near-constant splashing play that cycled from low to moderately energetic - observed in the earliest afternoon on 2 June 2013. |
| 1213 |
01 Jun 2013 @ 1200 |
01 Jun 2013 @ 1800 |
JSJ |
Pump Geyser was engaged in its usual perpetual spouting behavior, cycling from low splashing to moderately energetic splashing, back to low splashing - observed in the late afternoon of 1 June 2013. |
| 101 |
11 Feb 2012 @ 0000 |
11 Feb 2012 @ 2359 |
BB |
Pump was not covered by OF steam for long periods of time today. I wrote down a lot of times but it will take forever to copy them all. If anyone ever needs them let me know. It looks like it is still erupting every 5 minutes or so. |