| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 24918 |
16 Jan 2023 @ 1053 |
--- |
Graham |
Pooling water low in the vent. Dropped after Sawmill started. Came back up, almost filling front vents. Dropped and very splashy after Spasmodic quit ~1220. Splashy went to steamy eruption 1235. |
| 24908 |
15 Jan 2023 @ 1118 |
--- |
Graham |
Strong steam phase. |
| 24895 |
14 Jan 2023 @ 0917 |
--- |
Graham |
Starting to pool water low in the vent again. 0948 water still rising after Sawmill started. Water levels dropped, still pooling deep in right vent. |
| 24892 |
14 Jan 2023 @ 0805 |
--- |
Graham |
Pooling water low in the vents. Dropped 0819 and splashy. |
| 24850 |
08 Jan 2023 @ 1659 |
--- |
Graham |
Steam phase eruption. D>20m |
| 24426 |
16 Oct 2022 @ 1749 |
--- |
SantaFe108 |
Start of steam phase eruption.
12 minutes after Sawmill quit and 37 minutes after Spasmodic quit. Sawmill continued 25 minutes after Spasmodic shut off and Penta did not enter mixed phase. |
| 24354 |
13 Oct 2022 @ 1336 |
--- |
Tara |
steam phase eruption ie |
| 24236 |
05 Oct 2022 @ 1212 |
--- |
Tara |
steam phase eruption in progress |
| 24177 |
01 Oct 2022 @ 0818 |
--- |
Graham |
Steam phase ie. |
| 24115 |
26 Sep 2022 @ 0824 |
--- |
SteveO |
Steam phase eruption IE. |
| 24110 |
25 Sep 2022 @ 2336 |
25 Sep 2022 @ 2346 |
CrisG |
gurgling and occasionally tossing a couple drops from the top vent. getting chilly and need to move on. |
| 24090 |
25 Sep 2022 @ 0905 |
--- |
Graham |
Steam phase 10m after Sawmill quit. |
| 23999 |
22 Sep 2022 @ 1235 |
--- |
Graham |
Steam phase eruption. Sawmill quit 26m after Spasmodic, likely why no mixed phase. |
| 23891 |
18 Sep 2022 @ 0808 |
--- |
SteveO |
End at 0808 |
| 23816 |
14 Sep 2022 @ 1144 |
--- |
Graham |
Steam phase eruption. d=10m |
| 23796 |
13 Sep 2022 @ 1548 |
--- |
Graham |
2nd steam phase eruption, this one after Sawmill quit. |
| 23794 |
13 Sep 2022 @ 1523 |
--- |
Graham |
Steam phase started even though Sawmill is still ie. 1531 Sawmill quit and steam phase died away. |
| 23688 |
09 Sep 2022 @ 1901 |
--- |
Graham |
Steam phase eruption 8m after Sawmill quit and group in deep drain. d=12m |
| 23583 |
05 Sep 2022 @ 1320 |
--- |
Graham |
Steam phase, Sawmill still ie until 1326 |
| 23573 |
04 Sep 2022 @ 1856 |
--- |
DinosaursArentReal |
water partway filled in multiple holes.Splashing of 1-2 ft out of main hole. splashes of a few inches coming out of 2 of the other holes |
| 23560 |
04 Sep 2022 @ 1330 |
--- |
Graham |
Steam phase eruption. |
| 23401 |
25 Aug 2022 @ 0614 |
--- |
JimS |
ie in steam eruption only |
| 23354 |
22 Aug 2022 @ 1813 |
--- |
K.Cooper |
(wc) Steam phase or mixed phase eruption of some sort. Certainly doing something, Sawmill off at this time. If anyone in-basin has eyes on it, please update this note! |
| 23135 |
11 Aug 2022 @ 1129 |
--- |
JimS |
Stem phase ie |
| 23115 |
09 Aug 2022 @ 1350 |
--- |
deanl |
steam phase eruption IE |
| 22867 |
26 Jul 2022 @ 1716 |
--- |
aferrara |
standing water in vents |
| 22612 |
16 Jul 2022 @ 1144 |
--- |
Brando |
2 front pools empty, main vent gurgling with occasional drops of water coming out. |
| 21975 |
13 Jun 2022 @ 1518 |
--- |
Graham |
Pooling water. |
| 21945 |
12 Jun 2022 @ 0913 |
--- |
Graham |
Steam phase ie. |
| 21866 |
09 Jun 2022 @ 1143 |
--- |
SteveO |
water pooling in lower vent, main vent is splashing a little water out the front. |
| 21847 |
08 Jun 2022 @ 1946 |
--- |
Graham |
Steam phase ie. forcefully puffing steam. |
| 21766 |
05 Jun 2022 @ 1831 |
--- |
Graham |
Water pooling low in the vents. |
| 21757 |
05 Jun 2022 @ 1635 |
--- |
Graham |
Vigorous splashing in main vent for 1m. 1655 pools connected. 1728 small splash in main vent. Dropped 1730 with Spasmodic. |
| 21755 |
05 Jun 2022 @ 1624 |
--- |
Graham |
Pooling water, Tardy cycle. |
| 21712 |
04 Jun 2022 @ 0736 |
--- |
Graham |
Pooling water. Lost water by 0827 when Spasmodic had dropped too. |
| 21529 |
27 May 2022 @ 1201 |
--- |
Graham |
Sawmill quit but Spasmodic still ie and Penta pooling water in vents. |
| 21527 |
27 May 2022 @ 1040 |
--- |
Graham |
Water visible deep in right vrnt. Spasmodic high. |
| 21368 |
19 May 2022 @ 1800 |
--- |
Graham |
Pooling water. |
| 21366 |
19 May 2022 @ 1650 |
--- |
Graham |
Pooling water during Tardy cycle. Oval, Churn, Sawill up. Dropped when Spasmodic quit. |
| 21306 |
16 May 2022 @ 1030 |
--- |
Brando |
Gargling deep in the cone, no water visible. |
| 21142 |
01 May 2022 @ 1840 |
--- |
Ajw |
water being thrown out of main cone and one side vent. |
| 20789 |
06 Feb 2022 @ 1010 |
--- |
mhvogel |
Mixed phase eruption ended then transitioned into heavy steam. |
| 20726 |
18 Jan 2022 @ 1125 |
--- |
Graham |
No eruption on this deep drain. Just gentle steam. Twilight was down before Sawmill quit. |
| 20719 |
17 Jan 2022 @ 1726 |
--- |
Graham |
Steam phase. Twilight down before Sawmill quit. |
| 20702 |
16 Jan 2022 @ 0813 |
--- |
Graham |
Steam phase eruption only |
| 20694 |
14 Jan 2022 @ 1737 |
--- |
Graham |
Penta just steamed gently for 30m after Sawmill quit and the group was in a deep drain. Left due to darkness. |
| 20686 |
14 Jan 2022 @ 0747 |
--- |
Graham |
Steam phase, no water. |
| 20668 |
11 Jan 2022 @ 1400 |
--- |
Graham |
Some splashing above main vent. Snow in runoff channel. Thumping Hole splashing at depth. Spasmodic rising, minor boil in front vent, nothing from evil vent. |
| 20079 |
22 Oct 2021 @ 1436 |
--- |
PGuernsey |
heavily puffing steam |
| 20011 |
17 Oct 2021 @ 0856 |
--- |
aferrara |
Puffing steam |
| 19768 |
28 Sep 2021 @ 1025 |
28 Sep 2021 @ 1042 |
SteveO |
1st huff of steam, force huffing increased until 1035 and then started to decrease. 1042 huffing fairly weak. |
| 19744 |
26 Sep 2021 @ 1230 |
--- |
Graham |
Forced steam as it starts a deep drain. |
| 19644 |
18 Sep 2021 @ 1434 |
--- |
Graham |
Forced steam as we go into a deep drain. Sawmill restarted a few minutes ago. No eruption on this deep drain. |
| 19636 |
17 Sep 2021 @ 1132 |
--- |
Graham |
Pooling water and splashing in main vent and.right pool. dropped and continued to splash as Sawmill came on. |
| 19633 |
17 Sep 2021 @ 1003 |
--- |
Graham |
Pooling water in vents. Spasmodic ie and close to overflow. Dropped 1022 when Spasmodic quit. |
| 19617 |
16 Sep 2021 @ 1530 |
--- |
Graham |
Forced steam following the deep drain. |
| 19357 |
07 Sep 2021 @ 1503 |
--- |
Graham |
Has water visible in front vents and is doing gurgling splashes. Spasmodic is high and ie but not connected and Sawmill is off. Water dropped when Spasmodic quit and it's not a deep drain. |
| 19216 |
01 Sep 2021 @ 1214 |
--- |
Graham |
Quietly chugging steam as group goes into deep drain. Steam force steadily increasing. Noisy steam phase 1225 to 1230, then declining. Back to gentle chugging steam 1240. |
| 19113 |
27 Aug 2021 @ 1814 |
--- |
Graham |
Pooling in the vents, bubbling and splashing. Vents are connected. 1840 water dropped but still in vents. No more bubbling. 1853 dropped when Spasmodic ended. No eruption. |
| 19110 |
27 Aug 2021 @ 1641 |
--- |
Graham |
Pooling water deep in the vents and MV is splashy. |
| 19106 |
27 Aug 2021 @ 1212 |
--- |
Graham |
Light steam phase. |
| 19014 |
23 Aug 2021 @ 1539 |
--- |
Graham |
In steam phase. Twilight just below the pillars and dropping very slowly. |
| 18615 |
23 Jul 2021 @ 2245 |
--- |
am |
Loud gurgling and splashing. Including up to 12 inches from main vent |
| 18477 |
17 Jul 2021 @ 1436 |
--- |
SteveO |
Steam phase Penta, weak eruption but stronger than yesterday's. Duration 9 minutes. |
| 18457 |
16 Jul 2021 @ 1605 |
--- |
SteveO |
Steam phase eruption. Little water with for a 1.5 minutes. Huff forceful steam to weak steam about 7 minutes total. |
| 18379 |
12 Jul 2021 @ 0640 |
12 Jul 2021 @ 0650 |
SteveO |
Lower 2 vents forming a single pool, a little convection over west vent. 0650 water level dropping fast. |
| 18239 |
02 Jul 2021 @ 1452 |
--- |
dank |
Large pool connecting front vents |
| 18224 |
01 Jul 2021 @ 1658 |
--- |
Graham |
Grumbling at depth. |
| 18217 |
01 Jul 2021 @ 0839 |
--- |
Graham |
Gurgling at depth. |
| 18129 |
28 Jun 2021 @ 1637 |
--- |
TheHikingDude |
Lower two pools connected. |
| 18083 |
25 Jun 2021 @ 0904 |
--- |
K.Cooper |
side pools connected with strong convection and starting to overflow onto the left. Parasite vent is on but weak. |
| 18049 |
23 Jun 2021 @ 0715 |
--- |
Graham |
Pools joined. |
| 18002 |
22 Jun 2021 @ 0745 |
--- |
Graham |
Appreciate start of overflow. |
| 17995 |
22 Jun 2021 @ 0716 |
--- |
K.Cooper |
Side vents close to overflow, convective. Water pulsating in the main vent. |
| 17959 |
21 Jun 2021 @ 1211 |
21 Jun 2021 @ 1244 |
Tara |
1211 water level rising, bubbles in front vents, occasional splashes in main vent that slightly wet the cone. 1220 main vent no longer splashing, front vent pools connected and bubbling. 1233 front vents convecting and pool rising and falling, highest level just to edge of black gravel. 1244 water level onto black gravel, no further bubbling in front vents or splashing from main vent. |
| 17958 |
21 Jun 2021 @ 1152 |
--- |
Tara |
front vents bubbling and gurgling, main vent spitting, water level several inches down, Spasmodic rising |
| 17957 |
21 Jun 2021 @ 1000 |
21 Jun 2021 @ 1104 |
Tara |
water level up with convection from front vents, water seen occasionally in main vent |
| 17823 |
15 Jun 2021 @ 1335 |
--- |
Craigmon99 |
Lower two pools connected |
| 17821 |
15 Jun 2021 @ 1321 |
--- |
Craigmon99 |
Has water. Pools are disconnected
Loose Rocks in lower right vent |
| 17381 |
02 Jun 2021 @ 1521 |
--- |
Bhoffer |
Water is high enough to connect the two lower vents. The third one is pulsing in the cone. |
| 15118 |
27 Jul 2020 @ 1135 |
--- |
William |
higher water again, two front vents flooded into each other. |
| 15117 |
27 Jul 2020 @ 1000 |
--- |
William |
water level dropped enough to separate front two vents |
| 15111 |
27 Jul 2020 @ 0815 |
--- |
William |
Two vents closest to the boardwalk are flooded together. Third vent is pulsing water within its cone. |
| 14584 |
10 Jun 2020 @ 1330 |
--- |
K.Cooper |
2 side vents in overflow |
| 10649 |
21 Oct 2018 @ 1315 |
--- |
rbwhitaker |
Water is high enough that the two bottom vents' pools have merged into one. Water is hot and steaming, but no boiling in any of the vents. I can see water in one of the cone vents, and it's rising and falling maybe an inch or two every second or two. |
| 10633 |
20 Oct 2018 @ 1230 |
--- |
Golpin |
Penta was full and making bubbling noises |
| 9478 |
05 Aug 2018 @ 1700 |
--- |
Micah Kipple |
Hot enough that no bacteria can grow in the vents. |
| 7614 |
01 Oct 2017 @ 1818 |
--- |
minissa |
per wc, can see pulsatile steam coming from the area of Penta. Can anyone confirm or refute? |
| 3953 |
17 Feb 2017 @ 1540 |
--- |
WillBoekel |
still no eruptions. big snow drift in runoff chanel |
| 3948 |
16 Feb 2017 @ 1120 |
--- |
WillBoekel |
has not been active for some time. Big snow drift over runoff chanel. |
| 3915 |
22 Jan 2017 @ 1400 |
--- |
Graham |
Even though Churn is active, Penta is not. There's a large snow bank in the runoff channel. |
| 3868 |
06 Nov 2016 @ 1207 |
--- |
mhreed |
Penta's "sixth" vent erupting to four inches through gravel. |
| 3866 |
06 Nov 2016 @ 1036 |
--- |
udo |
Steam phase eruption |
| 3639 |
10 Sep 2016 @ 1834 |
--- |
Devin C. |
Boardwalk around Penta is wet, possible mix phase eruption? Sawmill turned off at 1834. |
| 3565 |
28 Aug 2016 @ 1539 |
--- |
sfavor |
intensity increased over last hour. maybe minor eruption just occurred. |
| 3351 |
22 Jul 2016 @ 1708 |
--- |
Scott Grisso |
Steam phase eruption at 1706. Ended at 1720 |
| 3230 |
06 Jul 2016 @ 1826 |
--- |
Rocco Paperiello |
duration = 28 min, mixed water and steam, steam phase very loud at times |
| 2771 |
21 Apr 2016 @ 0930 |
--- |
WillBoekel |
logger deployed for research permit #06094 |
| 2677 |
12 Feb 2016 @ 0901 |
--- |
WillBoekel |
No eruption overnight. snow marker still in place |
| 2486 |
06 Oct 2015 @ 2130 |
--- |
Jake |
Bottom vents merge together with water not yet to overflow. true overflow probably an hour away |