Last Known Eruption
3y 336d 16h 1m ago

Interval Statistics

Interval Count20
Min4h 59m
Max5y 288d 7h 27m
Mean196d 12h 19m
Median6d 21h 45m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
38662 27 Apr 2025 @ 1735 --- MAB pool past cave vent still full - green extends farther into pool now
38525 19 Apr 2025 @ 1604 --- MAB channel wet all the way under boardwalk but yesterday's snowmelt may have helped - pool out from cave vent full but green algae on sediments extends right up to the vent
38414 10 Apr 2025 @ 1244 --- SantaFe108 Calm, clear, and overflowing.
37917 07 Nov 2024 @ 1600 --- SantaFe108 Water entirely confined to the vent area, light steam.
37885 31 Oct 2024 @ 1632 --- SantaFe108 Calm and clear, water ~6ft out from cave.
37902 31 Oct 2024 @ 1339 --- MAB water receded a bit back towards the cave vent since 29th - slight ripping but could be the gusty winds
37830 29 Oct 2024 @ 1631 --- MAB less water in the pool outside the vent revealing green algae growth
37797 27 Oct 2024 @ 1311 --- MAB water ~4m out from cave vent- no pulsing or spitting - very quiet w steam
37736 24 Oct 2024 @ 1618 --- SantaFe108 Calm, seeping overflow and steaming.
37650 19 Oct 2024 @ 1614 --- MAB steamy still water - water extends well past the pool and down the channel towards boardwalk
37487 10 Oct 2024 @ 1036 --- SantaFe108 ~8ft out from vent, calm.
37368 03 Oct 2024 @ 1510 --- SantaFe108 ~8ft out from vent with calm water.
37223 28 Sep 2024 @ 1728 --- cb quiet but steamy
36588 27 Aug 2024 @ 1918 --- cb pool is overflowing about 8' toward the bw. no bubbles or convection
35420 21 Jun 2024 @ 1512 --- nails Full with clear, calm water. Steaming.
35099 10 Jun 2024 @ 1312 --- SantaFe108 Full and overflowing, calm.
35004 08 Jun 2024 @ 1154 --- cb No obvious activity but it's steaming and the first 4' past the vent are white and void of bacterial mat
34253 19 Apr 2024 @ 1503 --- MAB wide pool past vent with channel flowing under boardwalk - area closest to cave vent is green - Porkchop flow doesn't connect to the 2nd Erupter channel until closer to the boardwalk
29318 31 Oct 2023 @ 1615 --- MAB steamy water 3m out from cave vent - quiet
29023 22 Oct 2023 @ 0918 --- SantaFe108 Calm and clear, water about ~10 feet out from the cave.
28918 20 Oct 2023 @ 1547 --- MAB big pool in front of the vent - not flowing as far as boardwalk but green in the channel north
28881 19 Oct 2023 @ 1212 --- DanS Pool full, runoff reaching Tantalus creek.
28796 14 Oct 2023 @ 1622 --- MAB slightly steaming water ~15ft from vent but lots precip lately - green visible underwater outlining former pool level - kinda neat
28770 14 Oct 2023 @ 1330 --- SantaFe108 8 feet out from the vent calmly steaming.
28637 05 Oct 2023 @ 1229 --- cb no visable activity over the vent. It has a overflow pool that extends 8' beyond the vent.
28448 24 Sep 2023 @ 1125 --- DanS In overflow
28013 04 Sep 2023 @ 1648 --- cb pool in front of the vent is overflowing and flowing under the boardwalk. no activity
27597 14 Aug 2023 @ 1615 --- cb more water in the pool in front of the vent. no activity other than it's steamy on a fairly warm afternoon
27287 28 Jul 2023 @ 2018 --- SantaFe108 Water out ~5 feet from cave and calm.
27165 23 Jul 2023 @ 1527 --- cb pool in front of the vent has water, wee bit of convection and wee bit o steam
26969 09 Jul 2023 @ 1558 --- cb water in the pool in front of the opening extending ~5'. no sounds or movement in the pool
26833 04 Jul 2023 @ 0924 --- MAB water 4m out from cave vent - nothing audible
26407 17 Jun 2023 @ 1510 --- SantaFe108 Still with water ~8ft outward from cave.
25866 28 May 2023 @ 2006 --- SantaFe108 Water is ~4ft out of cave and lightly steaming with no surface commotion.
25535 18 May 2023 @ 1535 --- MAB water ~3m out from cave vent with a little steam - no ripples or spritzes
24528 29 Oct 2022 @ 1509 --- MAB water maybe 1.5m out beyond cave vent - steaming from vent
24408 15 Oct 2022 @ 0935 --- MAB steamy and quiet with no water visible like last week - something in the vicinity still popping
24256 05 Oct 2022 @ 1304 --- cb Its mildly active again. pool has water with small convection waves. not overflowing. 2 bubbles popped from the back of the pool sending a 3" spit of water above the pool. pool did not drain.
22952 31 Jul 2022 @ 1131 --- cb dry, no steam
22323 04 Jul 2022 @ 1500 --- cb bone dry. no steam or water or sounds
22213 29 Jun 2022 @ 1418 --- cb not any movement in the pool, a wee bit of steam. Catch basin pool is dramatically smaller > about 2' in front of the vent
22088 23 Jun 2022 @ 1749 --- cb slightly steamy water at the vent. catch basin high but not overflowing
21772 03 Jun 2022 @ 1650 --- MAB water flowing from vent down channel to pass under the boardwalk - at first I thought due to extra precip but the flow was actually moving. No real signs of waves or pulsing from the vent - also the water is pooling in front of the vent looking more like the vintage photos of "pool north of Porkchop" seen in pre-1989 Porkchop photos. Neat.
21612 31 May 2022 @ 1531 --- cb vent is full, no boil or splashing but Its pushing out a lot of water down its channel.
21333 16 May 2022 @ 1128 --- Tara Overflowing lightly with clear water.
21093 26 Apr 2022 @ 1630 --- MAB water in channel 4-5m from vent - could be from melt but FLIR shows it as warm - no blips at vent or ripples in the water
21016 18 Apr 2022 @ 1650 --- MAB looks fairly cool but water is out from the cave vent 3m - could also be from last weeks storm - Edit: FLIR shows the pooled water is indeed warm
20302 04 Nov 2021 @ 1151 --- MAB no water no noise - a little steam - stopping to take off a coat I *might* have heard some deep knocks but those could have come from anything in this crazy place!
20050 19 Oct 2021 @ 1327 --- cb no change. no water. just steamy
19900 05 Oct 2021 @ 1120 --- MAB steam - no water
19813 30 Sep 2021 @ 1309 --- cb steamy & thumping. no visable water
19610 16 Sep 2021 @ 1056 --- cb no visible water but i can hear gurgling
19618 16 Sep 2021 @ 0909 --- MAB No water visible but audible boils and grumbles
18784 01 Aug 2021 @ 1038 --- cb no water or sounds but quite a bit of steam.
18508 18 Jul 2021 @ 1107 --- cb no activity
18367 11 Jul 2021 @ 1510 --- cb quiet. no water or steam.
18329 09 Jul 2021 @ 1308 --- MAB dry - might have heard some grumbling but very windy
18280 05 Jul 2021 @ 1515 --- cb no water, no steam & no sounds.
18181 29 Jun 2021 @ 1346 --- cb just steamy
18153 28 Jun 2021 @ 1700 --- MAB Dry - no sounds -did see steam in the cool of morning
17924 19 Jun 2021 @ 1708 --- MAB Noisy boiling grumbles from back in vent - otherwise totally dry
17795 14 Jun 2021 @ 1729 --- MAB Dry - very noisy boiling noises coming from the cave vent
17727 12 Jun 2021 @ 1558 --- MAB no water - strong boilng sounds from within cave vent
17571 08 Jun 2021 @ 1133 --- cb audible gurgling. no visable water.
17456 04 Jun 2021 @ 1508 --- MAB dry with no sounds - very windy though
17347 01 Jun 2021 @ 1739 --- MAB dry - noisy gurgling with 1 foot drinking ftn type squirts coming from cave vent
17350 01 Jun 2021 @ 0915 --- MAB Dry- quiet
17182 25 May 2021 @ 1328 --- MAB water 1m out from cave vent - very tiny pulses
17189 17 May 2021 @ 1356 --- MAB Bone dry - no visible water
17045 11 May 2021 @ 1142 --- cb pool in front of the vent in much lower but I can hear gurgling.
17027 09 May 2021 @ 1249 --- cb pulsating with visable water 6" away from the vent
17001 06 May 2021 @ 1301 --- MAB visible steam - slight pulsing that could have been wind
16895 20 Apr 2021 @ 1543 --- MAB water just beyond the cave vent - no pulsing - dry channel no algae
16398 10 Oct 2020 @ 1045 --- cb no water or steam visable on the cold fall morning. no sounds either
16345 06 Oct 2020 @ 1259 --- cb steaming but no water visable or audible sounds
16269 26 Sep 2020 @ 1610 --- cb no water visible or sounds, just lightly steaming
15550 13 Aug 2020 @ 1101 --- cb no water or sounds. just a wispy steam coming from the vent.
14949 10 Jul 2020 @ 1450 --- cb No water visable but I can hear water bubbling.
14005 03 Nov 2019 @ 1120 --- MAB water 2m out from cave vent - barely pulsing- rest of runoff channel is snow covered
13931 12 Oct 2019 @ 1255 --- cb Second Eruptor's pool is in overflow ~ 2.5' from the vent but no eruption was seen or heard.
13422 27 Aug 2019 @ 1011 --- MAB noisy but very few spritzed beyond the vent. this was all afternoon too
12974 02 Aug 2019 @ 1600 --- MAB water 1 m out from cave vent- no pulsing or overflow but even In the hottest part of the day very steamy
12545 20 Jul 2019 @ 1255 --- cb water is pulsating out sending waves into the catch basin. not erupting.
12026 29 Jun 2019 @ 0845 --- cb pool is low and steamy
11823 16 Jun 2019 @ 0855 --- cb steamy but no other activity
11754 12 Jun 2019 @ 0946 --- MAB water 3m out from cave vent - no overflow no pulsing
11146 02 May 2019 @ 1050 --- MAB water several feet out from cave vent & slight pulsing. about triple the distance since last week. No overflows
11024 20 Apr 2019 @ 1045 --- MAB Water in immediate catch basin, no pulsing, no overflow.
10276 17 Sep 2018 @ 1433 --- MAB noisily splashing with visible water jets - visible water back inside the cove, and catch basin is wet, but no standing water
9904 28 Aug 2018 @ 1010 --- cb audible gurgling. no visible water
9872 25 Aug 2018 @ 0930 --- cb audible sounds but no visible water spikes
9613 10 Aug 2018 @ 1410 --- MAB Noisily Spitting water 4-12" from back in the vent. No water in the catch basin.
9614 10 Aug 2018 @ 1410 --- MAB Noisily Spitting water 4-12" from back in the vent. No water in the catch basin.
9615 10 Aug 2018 @ 1410 --- MAB Noisily Spitting water 4-12" from back in the vent. No water in the catch basin.
9441 03 Aug 2018 @ 1106 --- MAB per CB's Porkchop note: active and erupting 2-3" continually
9323 28 Jul 2018 @ 1600 --- MAB Very noisy grumbling and spitting out of the mouth of the 'cave' - not really erupting but more water visible than 10 days ago. No water in catch basin or channel.
9324 28 Jul 2018 @ 1600 --- MAB Very noisy grumbling and spitting out of the mouth of the 'cave' - not really erupting but more water visible than 10 days ago. No water in catch basin or channel.
9320 26 Jul 2018 @ 1700 --- MAB Noisy grumbling - no water visible. Catch basin and runoff channel totally dry
8961 30 Jun 2018 @ 1020 --- MAB No runoff. Water level is just a foot or so beyond the opening.
8847 22 Jun 2018 @ 1040 22 Jun 2018 @ 1300 MAB Surrounding basin full, with light runoff all the way under the boardwalk towards Ragged Hills. No eruption or pulsing
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Baseline does not exist.