Last Known Eruption
33d 4h 33m ago

Latest Eruptions

Eruption DurationInterval
25 Aug 2023 @ 1801 maj77d 4h 39m
09 Jun 2023 @ 1322 maj8-10 min33d 10h 55m
07 May 2023 @ 0227 E maj56d 21h 31m
11 Mar 2023 @ 0356 E maj41d 13h 19m
28 Jan 2023 @ 1437 E maj23d 1h 11m
05 Jan 2023 @ 1326 E maj29d 16h 51m
06 Dec 2022 @ 2035 E maj31d 8h 22m
05 Nov 2022 @ 1313 E maj47d 22h 3m
18 Sep 2022 @ 1510 maj~10m 89d 23h 45m
20 Jun 2022 @ 1525 maj~5m 10d 3h 57m
10 Jun 2022 @ 1128 maj3m 18d 2h 43m
23 May 2022 @ 0845 maj42m 19d 4h 45m
04 May 2022 @ 0400 E maj34d 10h 46m
30 Mar 2022 @ 1714 E maj26d 14h 31m
04 Mar 2022 @ 0143 E maj17d 9h 47m
14 Feb 2022 @ 1556 E maj22d 1h 16m
23 Jan 2022 @ 1440 E maj38d 13h 54m
16 Dec 2021 @ 0046 E maj21d 50m
24 Nov 2021 @ 2356 E maj12d 18h 54m
12 Nov 2021 @ 0502 E maj18d 3h 54m
25 Oct 2021 @ 0208 E maj11d 13h 24m
13 Oct 2021 @ 1244 maj11m 14d 23h 18m
28 Sep 2021 @ 1326 maj6m 17d 6h 47m
11 Sep 2021 @ 0639 maj1h 6m 65d 5m
08 Jul 2021 @ 0634 maj19m 37d 18h 51m
31 May 2021 @ 1143 maj6m 26d 11h 41m
05 May 2021 @ 0002 E maj11d 15h 5m
23 Apr 2021 @ 0857 ns maj6d 18h 23m
16 Apr 2021 @ 1434 maj11d 15h 6m
04 Apr 2021 @ 2328 E maj8d 10h 27m
27 Mar 2021 @ 1301 E maj9d 9h 17m
18 Mar 2021 @ 0344 E maj14d 7h 44m
03 Mar 2021 @ 1900 A maj9d 23h 40m
21 Feb 2021 @ 1920 E maj18d 17h 19m
03 Feb 2021 @ 0201 E maj21d 17h 3m
12 Jan 2021 @ 0858 E maj9d 15h 58m
02 Jan 2021 @ 1700 ns maj13d 4h 46m
20 Dec 2020 @ 1214 E maj8d 15h 32m
11 Dec 2020 @ 2042 E maj12d 6h 5m
29 Nov 2020 @ 1437 E maj9d 4h 25m
20 Nov 2020 @ 1012 E maj9d 4h 7m
11 Nov 2020 @ 0605 E maj7d 16h 32m
03 Nov 2020 @ 1333 E maj7d 11h 51m
27 Oct 2020 @ 0242 E maj7d 4h 1m
19 Oct 2020 @ 2241 E maj5d 21h 30m
14 Oct 2020 @ 0111 maj8d 4h 6m
05 Oct 2020 @ 2105 maj23m 9d 10h 30m
26 Sep 2020 @ 1035 maj17m 9d 22h 51m
16 Sep 2020 @ 1144 maj1h 17m 6d 20h 44m
09 Sep 2020 @ 1500 maj13m 7d 18h 26m
01 Sep 2020 @ 2034 maj40m 6d 2h 58m
26 Aug 2020 @ 1736 maj24m 6d 14h 36m
20 Aug 2020 @ 0300 maj5d 11h 31m
14 Aug 2020 @ 1529 maj31m 4d 16h 23m
09 Aug 2020 @ 2306 maj6d 13h 9m
03 Aug 2020 @ 0957 maj36m 4d 8h 49m
30 Jul 2020 @ 0108 maj5d 12h 7m
24 Jul 2020 @ 1301 maj3m 5d 1h 20m
19 Jul 2020 @ 1141 maj33m 5d 15h 37m
13 Jul 2020 @ 2004 maj22m 4d 9h 17m
09 Jul 2020 @ 1047 maj43m 5d 20h 32m
03 Jul 2020 @ 1415 maj26m 4d 12h 46m
29 Jun 2020 @ 0129 maj5d 13h 47m
23 Jun 2020 @ 1142 maj14m 4d 18h 14m
18 Jun 2020 @ 1728 maj3m 5d 18h 48m
12 Jun 2020 @ 2240 E maj4d 5h 3m
08 Jun 2020 @ 1737 maj28m 5d 1h 45m
03 Jun 2020 @ 1552 maj26m 3d 9h 29m
31 May 2020 @ 0623 maj1h 0m 7d 15h 16m
23 May 2020 @ 1507 E maj3d 18h 56m
19 May 2020 @ 2011 E maj5d 15h 55m
14 May 2020 @ 0416 E maj6d 3h 11m
08 May 2020 @ 0105 E maj10d 8h 44m
27 Apr 2020 @ 1621 E maj16d 23h 34m
10 Apr 2020 @ 1647 E maj8d 13h 6m
02 Apr 2020 @ 0341 E maj8d 6h 24m
24 Mar 2020 @ 2117 E maj9d 1h 9m
15 Mar 2020 @ 2008 E maj9d 32m
06 Mar 2020 @ 1836 E maj6d 19h 4m
28 Feb 2020 @ 2332 E maj7d 21h 55m
21 Feb 2020 @ 0137 E maj8d 8h 14m
12 Feb 2020 @ 1723 E maj10d 20h 16m
01 Feb 2020 @ 2107 E maj9d 2h 42m
23 Jan 2020 @ 1825 E maj13d 22h 40m
09 Jan 2020 @ 1945 E maj13d 22h 11m
26 Dec 2019 @ 2134 E maj8d 5h 52m
18 Dec 2019 @ 1542 E maj9d 22h 49m
08 Dec 2019 @ 1653 E maj11d 16h 6m
27 Nov 2019 @ 0047 E maj9d 12h 18m
17 Nov 2019 @ 1229 maj17m 9d 8h 30m
08 Nov 2019 @ 0359 E maj8d 13h 6m
30 Oct 2019 @ 1553 maj8d 2h 37m
22 Oct 2019 @ 1316 E maj6d 9h 25m
16 Oct 2019 @ 0351 E maj8d 7h 6m
07 Oct 2019 @ 2045 maj6d 7h 52m
01 Oct 2019 @ 1253 maj49m 6d 6h 31m
25 Sep 2019 @ 0622 maj7d 6h 40m
17 Sep 2019 @ 2342 ns maj~21m 6d 2h 2m
11 Sep 2019 @ 2140 maj25m 8d 19h 6m
03 Sep 2019 @ 0234 maj23m 6d 15h 47m

Interval Statistics

Interval Count100
Min3d 9h 29m
Max89d 23h 45m
Mean14d 14h 13m
Median9d 1h 55m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
28446 24 Sep 2023 @ 1018 24 Sep 2023 @ 1048 DanS Angled 20 ft play from NV, SV to 5 ft. Modest trickle of runoff reaching steerage.
28386 21 Sep 2023 @ 0900 --- CraigC 20' minors from NV, splashing from SV. Small steady trickle in runoff.
28277 16 Sep 2023 @ 1100 --- cb quick peek before wk. Nothing exciting to report. Occational NV 10' splashes. SV random spray (3') & its channel is mostly dry except for a seeps about 1/2 way down the channel. Feature above the NV confluence is gurgling but no visable water spits.
28039 05 Sep 2023 @ 1737 --- cb gently steaming, channels dry. small Vent above the confluence is gurgling and grumbling but no tip of splashes seen.
28007 04 Sep 2023 @ 1600 --- cb NV has a mildly forceful continuous steam column. channels are dry. Trough is void of any water.
27844 29 Aug 2023 @ 0933 --- cb 3D15.5H PE. SB is STILL in mixed steam & water phase. Strong & forceful huffing with impressive billows of steam & water from both vents. Both runoff channels have continuous flow of water down to Steerage. Cistern Spring water level is just a hair (2") below the inner rim, it's clear, blueish & a few occational bubbles still breaking the surface in the center.
27827 28 Aug 2023 @ 1025 28 Aug 2023 @ 1150 Tara mixed steam and water, both vents steady water, NV ~30-40', SV ~10-15'. steady light runoff in both channels.
27815 27 Aug 2023 @ 1644 --- cb 1D22.5H PE. NV has a thin veil of water in the forceful billowing steam. SV is in steam. There is a vent below Jabbas jaw, and the tips of splashes are visible from middle deck. The confluence vent is still intermittently spitting water 8-10". Cistern Spring is down ~2' from overflow with a weak bubble in the center, it's clear and blue.
27814 27 Aug 2023 @ 0804 27 Aug 2023 @ 0816 bbev 38hrs PE: Both vents still heavy steam. Both runoff channels have light trickle due to precipitation from tall steam cloud. NV may have some water mixed but difficult to tell due to the rain from steam cloud going straight up. CS down only 18-20" from overflow, clear with occasional bubble rising to the surface. ES is very clear and flat, overflowing.
27789 26 Aug 2023 @ 0947 --- cb 15.75H Steamboat is still in steam phase. Very billowy steam but not very loud anymore. No water in the steam. Small vent in the confluence of the NV run off channel is still blipping 8"-1' high.
27797 26 Aug 2023 @ 0756 --- bbev 14 hrs PE: Both vents all steam, heavy condensation/precipitation at mid deck and thru the dip. Much quieter, no water visible from either vent.
27644 16 Aug 2023 @ 1550 16 Aug 2023 @ 1630 Art Mostly quiet with occasional thick North solo. Very weakly concerted minors from time to time putting light runoff down to steerage. Shoulder dry but very warm out and full Sun.
27622 15 Aug 2023 @ 1625 --- cb not much change from yesterday. NV has some short lived (short D) but impressive V bursts/bounces, but SV is mostly angled spray. 2 nice concerted thiccckish minors as i was leaving for Steerage. Back shoulder is mostly dry. SV runoff channel has a consistent weak trickle into the trough (debris pile!)
27599 14 Aug 2023 @ 1500 --- cb NV active with tall, sometimes thick angled and V play. SV is lackluster. Angled 5' spray. spots on the runoff channel are dry. back shoulder mostly dry. weak trickle of water at Steerage
27580 14 Aug 2023 @ 0810 14 Aug 2023 @ 0825 bbev Both vents active with NV tall and thick. Difficult to see SV, but runoff is steady, and light, with occasional increase in volume. Channel appears to be “whitening” somewhat, but could just be the lighting. Evidence of increased activity from SV, based on the gravel pit (formally referred to as the trough) being washed from last observation. Appears to have been some flow on the north side of the “pit” below the bridge. Steady, light runoff at steerage, with some change in color of the channel. CS remains low, only overflowing out the back channel. Muddy pool much lower than last week.
27520 11 Aug 2023 @ 1039 11 Aug 2023 @ 1050 bbev NV active, occasionally tall, and voluminous with some vertical bounce. SV runoff has continuous light runoff with occasional heavier runoff. CS only overflowing out the back channel, muddy pool water level down considerably.
27434 06 Aug 2023 @ 1029 --- bbev NV active and somewhat percussive, tall and bouncy. SV steady light runoff at steerage. No obvious sign of any recent, heavy runoff from SV. CS overflowing out back channel only. 1034 concerted minor that increased flow at steerage somewhat, nothing impressive.
27330 30 Jul 2023 @ 0927 --- EmilyW Mostly angled, no runoff, very wispy and short. Some concerted. North is bigger than south. Runoff at the steerage is but a trickle.
27194 24 Jul 2023 @ 1234 --- bbev NV more active than yesterday with some vertical bounce and much thicker. SV runoff has a steady trickle of water, but SV still lacking any height or volume.
27169 23 Jul 2023 @ 1413 --- mhreed Vents lethargic—tens of seconds to a minute between splashes. Only a tiny trickle of water in NV and SV runoff channels.
27163 23 Jul 2023 @ 1319 --- bbev SV runoff channel is bone dry! Not even a trickle out of Jabba's jaw. Shoulder is dry. NV throwing angled minors 25+'. SV barely getting over the top of ET!
27117 18 Jul 2023 @ 1412 18 Jul 2023 @ 1600 Polly Minors of note: 1423 Concerted of a longish duration with NVCenter that produced a Babbling Brook +. (Not as tall as the last couple of days). 1547-48 Concerted, full across & strong with a lengthy Raging River. (Not the tallest I’ve seen this week, but definitely the most runoff.). No follow up seen. Overall, the booms and rumbles of yesterday were absent today except for a couple of lesser sounds during this observation.
27116 18 Jul 2023 @ 0940 18 Jul 2023 @ 1038 Polly Overall this hour had less activity than was observed yesterday. There were 3 babbling brooks. One concerted minor had a wide North Vent (North Vent with vertical center) and a decent duration.
27102 17 Jul 2023 @ 1120 17 Jul 2023 @ 1230 Polly On the quiet side for a half hour or so, but with 3 South Vent solos. Then: 1205 Concerted with forceful North 1210 C Strong wide minor that produced a raging river 1211 C Follow-up (short duration & not as strong) 1219 C Follow-up minor - fairly strong with a longer duration than most minors today It calmed down again after this.
27101 17 Jul 2023 @ 1020 17 Jul 2023 @ 1120 Polly Minors are generally of longer durations and stronger than they were two days ago. North Vent is very boomy and rumbling. It had some nice tall bursts, with one “Wow!” height briefly. Some minors were wide, with 3 NVCenter and 2 good bounces. There were 2 South Vent solos. South is taller than previous days. During the hour there were 7 audible runoffs and 2 babbling brooks.
27073 15 Jul 2023 @ 1150 15 Jul 2023 @ 1250 Polly North Vent has some tall bursts and some of the minors are wide with short center bounce. It has more water in the bursts (and not airy like yesterday). It is boomy at times. South Vent had a couple of solos. Runoff audible or babbling brook after 8 minors. Minors generally more organized than I saw during yesterday’s observation.
27066 14 Jul 2023 @ 1024 14 Jul 2023 @ 1144 Polly Some improvement over what it’s been doing the last couple of days. Decent minor in progress on my approach. 2 audible runoffs, 5 babbling brooks and 1 raging river over the course of just over an hour. At 1134-5 a concerted minor with a Very boomy strongish North Vent that had me looking to see if an airplane was flying over. (Really quiet after that one.) North Vent bursts are still mostly airy. South Vent is putting out more water than previous days. Most minors are of short duration.
27047 13 Jul 2023 @ 0924 13 Jul 2023 @ 1024 Polly Minors are still mostly weak and of short duration. North is quite airy during this time period, and occasionally has booms, rumbles, and some height. South height is mostly short. There were 2 audible runoffs.
27033 12 Jul 2023 @ 1608 12 Jul 2023 @ 1708 Polly Tall North single burst at the beginning - I was standing on the platform near the ramp and it was taller than the trees in back of it. Minors were about half North initiated and half concerted, but still more bursty and had short durations as well as being on the weak side. Nice minor at 1704: SNSN pause C with a decent-sized N center bounce. No follow up.
27032 12 Jul 2023 @ 0905 12 Jul 2023 @ 1005 Polly Shoulder by big rock wet again on top, as is the South Vent channel. Many short duration, concerted minors that are mostly weak. One tall North concerted quick minor at 0953, with quiet period following. Also a “boom” spray from North at 1008.
27011 11 Jul 2023 @ 0940 11 Jul 2023 @ 1040 Polly South Vent channel was wetter this morning with water resting on top of the shoulder by the big boulder. Minors this morning were more “bursty” with short pauses in between bursts. 5 minors lasted 10-16 seconds. North is still tall with many bursts almost steam driven and wispy. Some audible run-off.
26996 10 Jul 2023 @ 1436 10 Jul 2023 @ 1612 Polly Minors farther between with only 2-3 of note each hour. 2-3 babbling brooks and 3 minors with North center vertical bounces.
26995 10 Jul 2023 @ 1118 10 Jul 2023 @ 1127 Polly 1118 North with center vertical & small South. Babbling brook. 1124 C with smallish North center vertical and South a little better. (~15 seconds but no “oomph” to it.) 1127 South solo of about the same volume as earlier. North has had some steam forced tall sprays today.
26994 10 Jul 2023 @ 0842 10 Jul 2023 @ 1000 Polly North Vent is still dominate with some high bursts and one vertical in the center. South Vent has more height than yesterday. Most minors were of short duration, although some came 1-3 minutes apart. More runoff in South channel than yesterday. About 80% concerted.
26977 09 Jul 2023 @ 1710 09 Jul 2023 @ 1750 Polly In some sort of a lull. Mostly splashes, but a few weak minors at the bottom of the hour. North was on the tall side but thin with some of the splashes/minors. South was still on the short side and more intermittent.
26965 09 Jul 2023 @ 1454 --- cb Sporadic play dominated by NV (~20' and kinda gets vertical at times🤔). Some occational SV ~5' -8' that dampens its channel. Back shoulder & channel dry. A WEAK trickle of water down SV at steerage. Debris have not moved since last eruption.
26973 09 Jul 2023 @ 1135 09 Jul 2023 @ 1235 Polly Arrived to see the start of a strong minor that was full all across and that included lengthy water in the center. It lasted 20 seconds or more. (I lost count.) It was not as high nor as strong as I would have liked to see, but certainly made me smile! Certainly a step in the right direction. The follow-up minor was not as strong. The hour was about 70% concerted, with North stronger and with more volume and height than yesterday. South Vent is dumping out decent water, but is mostly only a few feet tall (except during strong minors.). There were a couple of babbling brooks at ~1215. (North was wide and tall but no center.) Addendum: 1251-1253 At Steerage, I heard & saw 2 good minors with babbling brook runoff. The water was sending pebbles down and also making dents in the sand at the trough.
26925 08 Jul 2023 @ 1022 08 Jul 2023 @ 1122 Polly The South Vent channel was wet on my arrival and remained that way. Some quiet periods with just splashes, but improved as the hour went on. The best concerted minor was at 1059, with a North Vent center bounce. (Activity lessened after that minor, but started to improve again near the end of the hour.) North had some somewhat tall thin bursts, but South was shorter (and harder to see due to wind direction). Some of the minors lasted several seconds. Only one or two minors made audible runoff. (There was also a steady trickle of water down the front channel, but may have been due to a small spouter uphill.)
26881 07 Jul 2023 @ 0915 07 Jul 2023 @ 1015 Tara Mostly weak minors, steady light flow at Steerage but lots of debris in channel. Trough is not dug out at all. One concerted minor during this time brought down a few small pebbles.
26821 04 Jul 2023 @ 0835 --- MAB walked up to a NV spritz - SV audible later but obscured by steam
26745 30 Jun 2023 @ 1055 --- cb mostly just steam. a few random angled low level splashes from both vents. NV runoff channel is dry as a bone as is back shoulder & steerage.
26672 25 Jun 2023 @ 1518 --- steve I didn’t watch for long. All I saw were weak north vent splashing with almost no runoff.
26638 24 Jun 2023 @ 1014 --- cb brief observation from middle deck. mostly still steam with an occational NV ~5'-8' angled splash. Just steam from SV & its channel is mostly dry albeit for a narrow moist ribbon of dampness from Jabbas jaw to steerage. A few scattered active mud pots on the platform thst can be heard gurgling & sputtering. pool at steerage is dry.
26357 16 Jun 2023 @ 0900 --- CrisG gently steaming on this cool morning. very slight trickle of water at steerage but not pooling or creating runoff from the gravel pit
26321 14 Jun 2023 @ 1801 --- CrisG slight trickle of water coming down the hill at steerage and pooling on the gravel at the bridge. has been gently steaming all day.
26267 12 Jun 2023 @ 1005 --- cb 2D21H PE.. No water seen from either vent. Tall but gentle billowing steam. no huffing sounds. Done
26237 11 Jun 2023 @ 1000 --- cb 1D 20.5H PE. Still continuing to throw water from both vents in rhythmical huffs. water at steerage is milky.
26217 10 Jun 2023 @ 1140 10 Jun 2023 @ 1200 bbev ~22hrs PSBE, NV is mixed steam with very little water. Cycling to heavier water as I came back from CS. NV spiking 50-60', broad "grand like, vertical" eruption. SV heavy steam. 1149 SV water returning, spray to 10' with light runoff. 1156 NV ejecting an occasional rock an spiking 70'+, SV increased water to 15'+.
26174 08 Jun 2023 @ 1000 08 Jun 2023 @ 1300 Dan A Activity a bit better than yesterday, thicker north and better water from south.
26148 08 Jun 2023 @ 0710 --- Polly Looking at the updated USGS Steamboat graph, it looks like my observation yesterday was at the peak for the day. So, likely still recovering yesterday.
26132 07 Jun 2023 @ 1453 07 Jun 2023 @ 1553 Polly Steamboat seemed stronger during my observation today than what I saw yesterday morning. Most minors appeared to be concerted, although I didn’t keep detailed notes. There was audible runoff on several minors, including a couple of babbling brooks. At times, North Vent seemed to be steam driven with little water, but much more water was seen in the minors during the middle of the hour. There were at least 3 quick splashes of water from the middle during stronger North Vent minors. I heard some rumbling, and the runoff channel is still a bit milky. The trough at Steerage is still quite full. Addendum: (Thursday, June 8) Looking at the updated Steamboat graph, looks like what I saw was the peak of the day.
26060 05 Jun 2023 @ 1240 --- Ben VL Play is as advertised from the graph. Longer quiet periods, a bit of volume, brief minors. Occasional NVV bounce and small babbling brook from SV. NV a lot less percussive. Trough still a tad milky. Cistern appears to still be at the same level.
26046 05 Jun 2023 @ 0715 05 Jun 2023 @ 0815 Graham Very weak compared to 2 days ago. Little activity from NV at all. No improvement by 1120 per Ben and he may even leave!
26033 04 Jun 2023 @ 0754 04 Jun 2023 @ 2139 Ben VL Nice runoff upon arrival. Very strong minor at 0822 with followup at 0824. HUGE false start at 1234 with tall NVV and sustained SVV with followup 40'+ NV vertical spike at 1235. This event moved more gravel out of the trough and enlarged it. A couple more smaller concerted verticals throughout the day but no real push before we left.
25989 03 Jun 2023 @ 1900 --- Graham Two good minors with no follow-up ~1200 and 1500.
25969 02 Jun 2023 @ 1030 02 Jun 2023 @ 1545 Tara Very general observations, large minor at 1030 with huge SV and heavy runoff. Brought rocks down but did not alter the trough. Several NVVs after and then another large minor with sustained NV at 1100. After that it was improved from yesterday but had not recovered to the strength of 2 days ago.
25952 01 Jun 2023 @ 1740 --- Graham Must have had a strong minor overnight as some chunks of gravel were moved in the trough. Dan and others reported a strong minor around 0800 with no follow-up. Nothing significant before I left at 1740.
25953 01 Jun 2023 @ 0630 --- CraigC Nice "Is it erupting???" minor eruption event around 0800, concerted and sustained. Lesser event again around 1200. Back to back decent minor eruptions around 2000, with several decreasing minors spread over next 20 minutes. Slow afternoon lull. C'mon Steamboat!
25938 31 May 2023 @ 1000 31 May 2023 @ 2200 Ben VL Kinda lackluster before noon. 1210 concerted vertical that ejected a butterfly. Concerted sustained vertical with RR at 1515. 1743-1804 active with several more concerted verticals and good runoff. A couple more good minors before I left but nothing like earlier in the evening.
25920 30 May 2023 @ 1036 30 May 2023 @ 2145 Ben VL In addition to Bill's observations, there were concerted vertical minors at 1129, 1134, ~1201 (stronger), [break], 1451 (quite nice with good raging river), 1534, 1535, & 1641. Got chased out by some rain after that. Two more CsV minors in the evening but did not log time. NV has decent volume and SV was getting more sustained and voluminous throughout the day.
25904 30 May 2023 @ 0845 30 May 2023 @ 1035 bbev Impressive conserted vertical minor that was sustained for 20-30 seconds. 0920 another impressive CVS with good runoff. Water at trough turned from clear to briefly milky after last minor. Left the area at 1035.
25896 29 May 2023 @ 1522 29 May 2023 @ 1552 Graham Much weaker play than this morning. NV weak. No significant water from SV, only one audible runoff, not a babbling brook. This morning there were several babbling brooks in a similar time-frame.
25854 28 May 2023 @ 1922 --- SantaFe108 Quick 5 minute peek. Angled, unconcerted play from both vents. SV put a couple babbling brooks down.
25844 28 May 2023 @ 1215 28 May 2023 @ 1230 bbev SB having mostly angled play from both vents. NV bubbler is audible and spitting water occasionally. Seems to me to be in a slightly different location than where l saw it last year. SV runoff steady at bridge, with trough still very full of gravel, and established runoff going to the south towards Echinus. CS remains high with heavy overflow in all directions. ES is clear and flat.
25725 23 May 2023 @ 1517 --- cb mostly angled airy action from both vents. Occational thiiiicker SV that puts out a babbling brook. back shoulder is just damp. No V action. Meh...
25668 21 May 2023 @ 1510 --- SantaFe108 Watched for about 10 mins. All angled play and usually not in concert. Only two concerted minors that were decent sized but entirely angled. Those two minors put babbling brooks down, but otherwise light, constant runoff.
25537 18 May 2023 @ 1956 18 May 2023 @ 2013 bbev Both vents still having angled play, mostly independent of one another. Trough has filled considerably with gravel from yesterday. Steady trickle with one good runoff that rolled gravel at 2006. Runoff does not appear to have enough volume to reach tantalus creek. CS still in heavy overflow
25500 17 May 2023 @ 1612 17 May 2023 @ 1653 bbev both vents active with angled play. SV runoff channel wet with occasional gravel rolling runoff. NV hit 25' on several occasions. CS overflowing heavily in all directions, water level well over the edges of entire pool. Trough completely full of gravel, with water running out the south side rather than directly under bridge. Crazy erosion in NV channel, with gravel nearly refilling the channel at that bridge.
25487 16 May 2023 @ 1917 --- cb I just entered the 2 known Steamboat eruptions for March and the possible eruption in Feb. So far, there is no data for April.
25459 15 May 2023 @ 1818 15 May 2023 @ 1840 ypcaribou Casual splash from SV every so often at random, but mostly huffing, ET wet, channels mostly dry. Tinyest trickle in NV channel below. SV channel barely damp with no visible water flow. Debris at Steerage is fully across entire channel and within maybe 6" of bottom of bridge. CNVSV splashing for a few seconds around 1842 but not tall as seen from Steerage.
25376 08 May 2023 @ 1015 --- Scott H Still in steam phase at 1015; steam column no longer visible from road by 1315 on my return trip.
25147 11 Apr 2023 @ 0930 --- mhreed SV has a healthy runoff. Some concerted jetting.
25059 27 Feb 2023 @ 1540 --- MAB in 5min stop saw one NV lazy spray & SV toss a bit - did not make it down to inspect the trough
24938 21 Jan 2023 @ 1530 --- ypcaribou Time approximate. Seen southbound from pullout on the long, downhill stretch of road between Norris Overlook & Norris Campground. "Ledge area was a lot more steamy than Steamboat. (Ledge area steam very tall.) But Steamboat had a few bursts of steam. No water bursts seen from either."
24835 06 Jan 2023 @ 1000 --- ypcaribou As seen from platform area which was very icy. Spitting water to about 50 feet "every so often." Time approximate. Relayed to me by a West YVT Guide.
24658 08 Nov 2022 @ 0934 --- mhreed Healthy plume visible from the road; still in steam phase.
24643 05 Nov 2022 @ 1545 --- mhreed In full throated steam phase. ~5% liquid water in NV. Wind toward the road into the parking lot. No wash over the bridge (probably because of the wind).
24607 31 Oct 2022 @ 1700 --- mhreed From a quick five minutes of observation: NV led play with angled but substantial jetting. Occasional runoff sent down the SV channel.
24595 30 Oct 2022 @ 1755 --- ypcaribou Angled splashing. Some concerted. Some not. 1 babbling brook audible in obs period. ET still there. Jabba is a faceless mound. Boardwalk empty of people. I almost burst out singing Memories.
24530 29 Oct 2022 @ 1410 --- MAB trough full of mostly small gravels - also a VR of a 60ft SV around 1340 - they said NV wasn't doing more than 10ft - I saw a few concerted from the trough but south was dominant - another VR reported at Vixen saw only NV in 10m
24471 21 Oct 2022 @ 0830 --- MAB 3 minute visit with NV & SV alternating lazily tossing sprays
24341 11 Oct 2022 @ 1009 --- bbev 22D,19hrs PE: Both vents active, mostly NV jetting to 20', with an occasional SV heard. Only a trickle of water in SV runoff. NV bubbler active with trickle of water in runoff channel. Mudpot between channels gurgling. CS barely overflowing on the sides, lightly boiling inclear pool. ES clear and overflowing. Farewell for now, see you in the spring!
24294 07 Oct 2022 @ 0950 --- DanS A little water has returned to the system. Occasional splashing from NV, nothing but steam from SV.
24281 06 Oct 2022 @ 1323 --- cb no change. Emerald spring is still calm, clear and more turquoise blue than green. Cistern Spring is overflowing in all directions; more so out the established channel than toward Veteran.
24271 05 Oct 2022 @ 1136 --- cb No change
24223 04 Oct 2022 @ 1657 --- cb 16D.. NV> very weak, wispy, occational 5' spray. Nothing from SV. Cistern Spring is overflowing out the established channel and into the muddy pool. Its filling the catch basins toward Veteran but not overflowing yet. Typical boil. Emerald Spring is very steamy and overflowing, pool looks more turquoise blue than greenish. Calm
24209 03 Oct 2022 @ 1809 --- Csiegel Steamboat has no water jetting. CS in overflow strong boil in center
24198 03 Oct 2022 @ 1133 --- WillBoekel still no water in the system. runoff channel is damp but that may be from the rain.
24162 29 Sep 2022 @ 1230 --- bbev 10D, 21hrs PE: Quietly steaming, no water from either vent or in runoff other than a trickle coming from the north runoff bubbler, which is loudly gurgling. CS is overflowing out the back channel. Pool is opalescent blue with very, very light boil. ES is clear, flat, and overflowing.
24097 25 Sep 2022 @ 1136 --- cb 6D 22.5H. gently steaming. no water. lots of gurgling mud pots can be heard but not visable from the platform. ** Cistern Spring has no visable water. lite steam. no sounds. **Emerald Spring is more turquoise blue than green, clear & calm
24091 25 Sep 2022 @ 1033 --- bbev 6D, 20hrs PE: Quietly steaming, runoff dry. CS is empty, steaming, no water to be heard or seen.
24001 22 Sep 2022 @ 1553 --- cb 4D45M.. NV is rhythmically huffing forceful steam, no jets of water. SV forceful steam. SV Channel is dry from the vent down about 15', damp from there onward. NV channel has a thin stream of water most likely from the bubbler up by the confluence. ** Cistern Spring pool is just at the edge of the inner rim tube with a small string of bubbles occationally breaking the surface. It's clear and blue. **Emerald Spring is a green/blueish color, clear and calm. 3Trees feature has a 3" blooper.
23984 21 Sep 2022 @ 1210 21 Sep 2022 @ 1305 bbev 2D,19hrs PSBE: Energizer Bunny mode: Just keeps going, and going, and going... Both vents cycling between wispy mix for several minutes, then transition into continous NV jetting 25-30' and SV fountaining 6-8'. Post eruption behavior similar to activity in May/June 2018 (see notes), only much weaker. CS is down only 1-2"(maybe) from yesterday. Still well above rim of inner tube.
23972 20 Sep 2022 @ 1923 --- ypcaribou Still jetting forcefully out of both vents. Same heights as earlier. Hole between 2 channels sounds like a gurgling, backed up toilet.
23945 20 Sep 2022 @ 1725 20 Sep 2022 @ 1750 annelies8 Both vents continuous, like the earlier note from today
23963 20 Sep 2022 @ 1659 --- ypcaribou NV splashes visible from just right of YFS. Spouting to just shy of tree tops behind SB. Still angled and constant.
23955 20 Sep 2022 @ 1604 --- ypcaribou As seen from Crater Spring, it's still putting out forceful jetting.
23950 20 Sep 2022 @ 1535 20 Sep 2022 @ 1548 ypcaribou Continuous, forceful, angled spouting out of both vents. N to well above trees. S to base of trees.
23952 20 Sep 2022 @ 1548 --- ypcaribou NV channel has steady trickle of water. SV channel has steady flow blanketing about 4ft in width of hill Pooling at steerage with cloudy opaque water with a smidge of blue. Kinda looks like dirty bathwater. Flow out other side branched into several separate channels.
23932 20 Sep 2022 @ 1005 20 Sep 2022 @ 1130 bbev 1D,19hrs PSBE, Mixed water and steam from both vents, NV, bursting 25-30'. Significant steady runoff in SV channel that does not appear to be coming directly out of SV. About the same volume as yesterday, when there was no visible water other than steam, coming from either vent. 1051 water in SV channel has slowed to trickle. Both vents still mixed steam and wispy water. CS is 24-26" below overflow, about half way down to the inner tube.Occasional bubbles rising to surface, would not call it a boil. 1102, increase in steady jetting from NV, 20-30'. SV still mixed with wispy spray. 11:11 significant increase of water in both vents. SV fountaining 8-10'. NV spiking 40+'. 1123 NV becoming thickk, erupting out of the vertical area. Still continuous and spiking well over 40'.
EntrySourceLinkComment
25 Aug 2023 @ 1801 JSJ https://www.flickr.com/photos/jsjgeology/53142287065 Tantalus Creek discharge graph showing Steamboat Geyser's 6:01 PM major eruption on 25 August 2023.
25 Aug 2023 @ 1801 JSJ https://www.flickr.com/photos/jsjgeology/53142287090 Norris Junction seismogram showing Steamboat Geyser's 6:01 PM major eruption on 25 August 2023.
09 Jun 2023 @ 1322 JSJ https://www.flickr.com/photos/jsjgeology/52962615662 Norris Junction seismogram showing Steamboat Geyser's 1:22 PM major eruption on 9 June 2023.
07 May 2023 @ 0227 JSJ https://www.flickr.com/photos/jsjgeology/52877612092 Norris Museum seismogram showing Steamboat Geyser's 2:27 AM major eruption on 7 May 2023.
28 Jan 2023 @ 1648 JSJ https://www.flickr.com/photos/jsjgeology/52657626900 Tantalus Creek discharge graph showing Steamboat Geyser's mid-afternoon major eruption on 28 January 2023.
05 Jan 2023 @ 1326 JSJ https://www.flickr.com/photos/jsjgeology/52608860362 Norris Museum seismogram showing Steamboat Geyser's 1:26 PM major eruption on 5 January 2023.
06 Dec 2022 @ 2035 JSJ https://www.flickr.com/photos/jsjgeology/52547766627 Norris Museum seismogram showing Steamboat Geyser's 8:35 PM major eruption on 6 December 2022.
05 Nov 2022 @ 1313 JSJ https://www.flickr.com/photos/jsjgeology/52479437836 Norris Museum seismogram showing Steamboat Geyser's 1:13 PM major eruption on 5 November 2022.
18 Sep 2022 @ 1510 JSJ https://www.flickr.com/photos/jsjgeology/52368650296 Norris Museum seismogram showing Steamboat Geyser's 3:10 PM major eruption on 18 September 2022.
20 Jun 2022 @ 1525 JSJ https://www.flickr.com/photos/jsjgeology/52168106894 Norris Museum seismogram showing Steamboat Geyser's 3:25 PM major eruption on 20 June 2022.
10 Jun 2022 @ 1128 JSJ https://www.flickr.com/photos/jsjgeology/52139692121 Norris Museum seismogram showing Steamboat Geyser's 11:28 AM major eruption on 10 June 2022.
23 May 2022 @ 0845 JSJ https://www.flickr.com/photos/jsjgeology/52094875995 Tantalus Creek discharge graph showing Steamboat Geyser's 8:45 AM major eruption on 23 May 2022.
23 May 2022 @ 0845 JSJ https://www.flickr.com/photos/jsjgeology/52093285042 Norris Museum seismogram showing Steamboat Geyser's 8:45 AM major eruption on 23 May 2022.
04 May 2022 @ 0400 JSJ https://www.flickr.com/photos/jsjgeology/52049978441 Tantalus Creek discharge graph showing Steamboat Geyser's 4:00 AM major eruption on 4 May 2022.
04 May 2022 @ 0400 JSJ https://www.flickr.com/photos/jsjgeology/52050010683 Norris Museum seismogram showing Steamboat Geyser's 4:00 AM major eruption on 4 May 2022.
30 Mar 2022 @ 1714 JSJ https://www.flickr.com/photos/jsjgeology/51972309311 Norris Museum seismogram showing Steamboat Geyser's 5:14 PM major eruption on 30 March 2022.
04 Mar 2022 @ 0143 JSJ https://www.flickr.com/photos/jsjgeology/51918284960 Tantalus Creek discharge graph showing Steamboat Geyser's 1:43 AM major eruption on 4 March 2022.
04 Mar 2022 @ 0143 JSJ https://www.flickr.com/photos/jsjgeology/51918284935 Norris Museum seismogram showing Steamboat Geyser's 1:43 AM major eruption on 4 March 2022.
14 Feb 2022 @ 1556 JSJ https://www.flickr.com/photos/jsjgeology/51882938989 Norris Museum seismogram showing Steamboat Geyser's 3:56 PM major eruption on 14 February 2022.
17 Dec 2018 @ 1215 mhreed https://imgur.com/a/pS7scQ1 Illustration of power spectral density plots for each component of YNR. This is like a spectrogram, just visualized with intensity vs. frequency instead of a colormap showing frequency vs. time.
Baseline does not exist.