Last Known Eruption
48d 18h 18m ago

Latest Eruptions

Eruption DurationInterval
03 Apr 2024 @ 1804 E maj37d 12h 57m
26 Feb 2024 @ 0407 E maj57d 9h 4m
30 Dec 2023 @ 1903 E maj47d 12h 47m
13 Nov 2023 @ 0616 E maj35d 16h 30m
08 Oct 2023 @ 1446 maj15m 43d 20h 45m
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

Interval Statistics

Interval Count100
Min3d 9h 29m
Max89d 23h 45m
Mean16d 11h 5m
Median9d 9h 53m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
34633 21 May 2024 @ 0654 --- CraigC 0654 Concerted vertical minor with some sustain and good runoff. 0747 Real nice concerted vertical minor with decent sustain and high runoff. 0948 Huge concerted vertical minor with good sustain and very impressive runoff. 1027 Cv with sustain 1030 followup cv 1053 Massive cv with lengthy sustain with huge runoff.
34627 20 May 2024 @ 1400 20 May 2024 @ 1700 Dan A 1414 nice concerted vertical minor, 1452 nice concerted vertical minor, 1502 very nice south, 1539 concerted vertical minor, activity declined from 1600 on, the concerted vertical minors during this time while very nice were not quite as strong as two days ago.
34625 20 May 2024 @ 0644 --- CraigC 0644 Concerted vertical, decent runoff. 0945 Good concerted vertical with some sustain and good runoff.
34619 19 May 2024 @ 1700 19 May 2024 @ 1800 Dan A Activity declined from earlier in day, activity today as a whole was weaker than yesterday.
34615 19 May 2024 @ 0715 --- CraigC Very active minors upon arrival at 0715. A little bit of vertical. 0858 Very nice concerted vertical with big wall of water on North.
34612 18 May 2024 @ 1900 18 May 2024 @ 2030 Dan A 1942 concerted north/south vertical, 1943 follow up north/south vertical, 2004, north/south vertical north to 30’, 2015 concerted north/south vertical,
34611 18 May 2024 @ 1947 --- CraigC per Mike Poland, temp sensors were recalibrated. Updated data will show 15 degrees lower. Steamboat activity has not dropped suddenly. Unless Dan and Russ broke it after I left.
34610 18 May 2024 @ 0604 --- CraigC 0800 Huge concerted vertical, very lengthy sustain. Very surprised it didn't turn into eruption. 0920 Tall concerted vertical minor with large wall of water on North. Massive runoff. 1040 Good concerted vertical minor with big runoff. 1120 Good concerted vertical minor sustained well, but not as much runoff as prior. 1635 Concerted vertical with good sustain onSouth.
34596 17 May 2024 @ 1200 --- CraigC 1230 concerted vertical, not very tall. 1336 concert vertical with some sustain and good runoff. 1400 concerted vertical with good wall of water on North and good runoff but less sustain as 1336. 1511 concerted vertical and good runoff. 1532 good concerted vertical with some sustain
34585 16 May 2024 @ 1230 16 May 2024 @ 1800 Dan A 1353 concerted north south vertical north to 15’, another 1651 concerted north south vertical north to 15’, ~1730 nice vertical south, thick north but not vertical. There was no follow up to any of the vertical minors, Play looks very similar to the past few days not much has changed other than south willing to go vertical.
34567 15 May 2024 @ 1937 --- Dan A Activity is the same as yesterday and day before.
34557 14 May 2024 @ 1330 14 May 2024 @ 1630 Dan A 1411 nice minor with north vertical and angled south, play today was similar to yesterday no real change
34547 13 May 2024 @ 1400 13 May 2024 @ 1930 Dan A Both north and south were much improved from friday, north was thicker in general, south putting down more consistent water, more energetic play in general and more percussive, at 1730 strong minor with vertical north and angled south that put down a raging river, 1842 another strong minor with north vertical to about 35’ and angled south that put down a raging river, both of the vertical north’s were unsustained and there was no follow up to either of the minors.
34525 11 May 2024 @ 1800 11 May 2024 @ 1830 cb kinda meh! Angled play from both vents. SV had a few nice rivers & its whitening. Interesting how SV runoff channels have changed over the winter. It's nice to be home. Beautiful day! ** Cistern Spring is low and only runoff is out the back channel. **Emerald Spring is cloudy, milky turquoise in color, overflowing with occasional bubbles breaking the surface along the edges.
34514 10 May 2024 @ 0800 10 May 2024 @ 1730 RMichaels Steamboat activity overall weak today. Almost all angled play, nothing sustained, no notable events or attempts. Emerald is quite cloudy.
34411 04 May 2024 @ 0830 04 May 2024 @ 1915 RMichaels Steamboat was quite active overall today. Notable events occurred at: 1200 - series of concerted minors with impressive SV runoff. Baseball- and larger-sized rocks were washed down the runoff channel. 1600 - two concerted minors with sustained vertical from SV and a couple of 30-40' NV vertical bounces. 1800 - again, two concerted minors, this time with sustained vertical from both vents. No immediate follow-up, but energy remained high for approximately an hour afterward, with thick NV and occasional unsustained vertical.
34396 02 May 2024 @ 1200 02 May 2024 @ 1600 Dan A 1338 Concerted north/south vertical with north briefly to about 30’, many strong babbling brooks also observed.
34372 28 Apr 2024 @ 0931 28 Apr 2024 @ 1010 DanS Some independent tall angled play from NV plus lower angled concerted play from N&S leading to babbling brook every few minutes.
34368 28 Apr 2024 @ 0730 --- rayceanderson Decent pushes from north vent, south vent splashing occasionally. Good consistent runoff.
34358 27 Apr 2024 @ 1000 27 Apr 2024 @ 1030 JR Strong play from both vents. 40'-50' height from NV. Consistent and audible water runoff down to Steerage.
34343 25 Apr 2024 @ 1300 25 Apr 2024 @ 1700 Dan A 1358 concerted vertical minor with north to 30’ ,1358 another concerted vertical minor north to 40’ launching rocks .Also it’s seems that ET has broken his nose, there’s a hole where ET’s nose used to be.
34325 24 Apr 2024 @ 0930 24 Apr 2024 @ 0951 DanS Modest angled play from NV, decent play from SV. Babbling brook at 0936, 0948. Runoff under steerage bridge has redirected into the trail side trees towards Echinus.
34280 20 Apr 2024 @ 1100 --- mhreed Minors during a brief 10 minute observation period appeared healthy—mostly concerted, not particularly tall, but with decent volume. Steady stream of water down the South Vent runoff channel.
34174 11 Apr 2024 @ 0930 --- JR Rumbling, huffing steam. Runoff bone dry.
34123 17 Mar 2024 @ 1410 17 Mar 2024 @ 1500 Mkeller Mostly weak and wispy North vent play with a couple of ok pushes from South with so-so overflow.
34078 01 Mar 2024 @ 0900 --- JR Quietly steaming. No signs of recent eruption.
34087 29 Feb 2024 @ 1852 --- steve It appeared from the seismograph YNM that Steamboat was erupting. No other seismograph showed an eruption and observation the next day showed it had not erupted. It appears the seismograph was giving false readings.
34054 20 Feb 2024 @ 1130 20 Feb 2024 @ 1230 aferrara many tall, energetic, minor eruptions. several with concerted vertical play. runoff frequent, with loud babbling brooks several times in the hour. overall minor eruptions are frequent and tall. Three times in this window, but especially at 1141, I thought I was about to see the major eruption. oh well.
34041 17 Feb 2024 @ 1135 --- JR Observed for about 25 minutes. Some nice minors overall: play from both vents, audible runoff, some booming heights out of NV of about 40', maybe 50' from a few over the observed time. Had good activity for about 15 seconds or so from one minor.
34029 13 Feb 2024 @ 1530 --- JR Observed for about 20 minutes. Some decent minors a few minutes apart. 30+ feet from nv, and play from both vents. No audible run off at any point.
33933 26 Jan 2024 @ 1405 --- JR Quiet..... very little run off, temp logger is low again....
33909 24 Jan 2024 @ 1320 --- JR Good minors, nothing too impressive but lots of gurgling, slight runoff. Temps are back up on logger.
33904 20 Jan 2024 @ 1445 --- JR Decent pumps of water out of both vents. Audible run-off. First observed (and obvious) increase in activity since post-eruption quiet period.
33819 16 Jan 2024 @ 1115 --- JR Huffing steam mostly. Small burst of water about 10-15' high out of both vents once in a 30-minute observed period.
33746 04 Jan 2024 @ 1549 --- Graham Light puffy steam. Cistern high but below overflow. Erosion in SV channel, a big rock has dislodged from the right side.
33730 02 Jan 2024 @ 1150 --- JR No water but slightly audible, forceful steam. Whole area is covered in ice, including boardwalk. Beautiful but use caution!
33477 27 Dec 2023 @ 1335 27 Dec 2023 @ 1415 JR Back to impressive minors. Approx 50'-60' burst out of North Vent. Intense water flow between both vents that held strongly for a few seconds. Strong run off, rushing and hot. Deep rumbling below, some gurgling from the mud pots.
33373 23 Dec 2023 @ 1045 --- JR Nice play from both vents. Decent, audible, creek-like runoffs a few minutes apart.
33300 21 Dec 2023 @ 1400 --- JR Minors are much less aggressive than a few days ago. Still reaching 25' from the North Vent but South Vent play is much less pronounced. Observed minors are not producing near the volume of water seen a few days ago.
33095 19 Dec 2023 @ 1000 --- JR Strong minors, strong flow. Approximately 5 minutes apart over an observed 30 minutes. 30-50'
32866 15 Dec 2023 @ 1110 --- JR A very strong minor from North and South in concert. Followed by a loud full runoff. Several nice minors this morning but that one in particular was stronger and longer than the others.
31721 29 Nov 2023 @ 1445 --- JR Steamboat had a few decent minors out of both the north and the south vent. Most observed activity since the eruption on the 13th. The runoff channel was flowing slightly, decent pool at steerage. Nothing overly impressive but the minors are just a few minutes apart.
29036 22 Oct 2023 @ 0837 --- SantaFe108 Light huffing steam, did not see any water in the few minutes I stood there.
28963 21 Oct 2023 @ 1505 --- JR Steaming quietly. Dry runoff. Lots of gurgling in front from lower platform
28871 19 Oct 2023 @ 1111 --- DanS Huffing steam with a small amount of water splashing from NV.
28776 14 Oct 2023 @ 1100 --- Dan A Gently steaming
28739 12 Oct 2023 @ 1000 --- Dan A Steamboat is pretty quiet, North vent is gently huffing, no forced steam from south vent seen.
28728 10 Oct 2023 @ 0822 --- bbev 1D,17hrs PE: Skated down to mid deck on sheet of ice. SB still in mixed water. Steady, light flow down SV channel, that is not originating from SV, but possibly from crack below Jaba. Mudpot in front of mid deck is really active, spewing water and grey mud down to the SV runoff channel. CS down 18-20" below overflow, having dropped less than a foot overnight. Thanks for the farewell eruption! Maybe we will see you again next year?
28716 09 Oct 2023 @ 1120 09 Oct 2023 @ 1400 cb SB was in heavy mixed steam water when i got here about 1030 & changed to all steam at 1120 - 1215. Then back to thicck mixed steam/water from both vents (sometimes NV appeared to be all water.) through 1400. Occasionally SV will switch to roaring steam and NV tries to pause but neither actually does.
28701 07 Oct 2023 @ 1030 07 Oct 2023 @ 1930 bbev SB active, with strong, tall NV. Three events at approx 1030, 1340, and 1640 were strong enough events that could have led to an eruption, IMO. The last two events were Concerted minors, with water from both vents well over the trees, as seen at mid-deck.
28628 05 Oct 2023 @ 1116 --- cb occasional concerted angled play that will end in a V bounce, but mostly just independent angled minors. NV dominated, just one weak river from SV, mostly just a consistent trickle to steerage.
28547 29 Sep 2023 @ 1242 --- User34 One decent concerted minor with many vertical bursts from North and heavy angled play from South. Put out a solid babbling brook. Other minors barely had any South/runoff, but frequent NVV
28539 27 Sep 2023 @ 1155 29 Sep 2023 @ 1235 DanS Improving from last week. NV some vertical, SV more voluminous with 3 babbling brooks during this period.
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.
EntrySourceLinkComment
03 Apr 2024 @ 1804 JSJ https://www.flickr.com/photos/jsjgeology/53630765681 Tantalus Creek discharge graph showing Steamboat Geyser's 6:04 PM major eruption on 3 April 2024.
03 Apr 2024 @ 1804 JSJ https://www.flickr.com/photos/jsjgeology/53629874332 Norris Museum seismogram showing Steamboat Geyser's 6:04 PM major eruption on 3 April 2024.
26 Feb 2024 @ 0407 JSJ https://www.flickr.com/photos/jsjgeology/53553985523 Norris Museum seismogram showing Steamboat Geyser's 4:07 AM major eruption on 26 February 2024.
30 Dec 2023 @ 1903 Betty https://quake.utah.edu/station/heli/YNM.png?1704070210740 YNM seismo
30 Dec 2023 @ 1903 JSJ https://www.flickr.com/photos/jsjgeology/53432962380 Tantalus Creek discharge graph showing Steamboat Geyser's 7:03 PM major eruption on 30 December 2023.
30 Dec 2023 @ 1903 JSJ https://www.flickr.com/photos/jsjgeology/53431238352 Norris Museum seismogram showing Steamboat Geyser's 7:03 PM major eruption on 30 December 2023.
13 Nov 2023 @ 0616 JSJ https://www.flickr.com/photos/jsjgeology/53329176472 Tantalus Creek discharge graph showing Steamboat Geyser's 6:16 AM major eruption on 13 November 2023.
13 Nov 2023 @ 0616 JSJ https://www.flickr.com/photos/jsjgeology/53330506015 Norris Junction seismogram showing Steamboat Geyser's 6:16 AM major eruption on 13 November 2023.
08 Oct 2023 @ 1446 JSJ https://www.flickr.com/photos/jsjgeology/53245966898 Tantalus Creek discharge graph showing Steamboat Geyer's 2:46 PM major eruption on 8 October 2023.
08 Oct 2023 @ 1446 JSJ https://www.flickr.com/photos/jsjgeology/53246168970 Norris Junction seismogram showing Steamboat Geyser's 2:46 PM major eruption on 8 October 2023.
08 Oct 2023 @ 1446 JSJ https://www.flickr.com/photos/jsjgeology/53244930054 Tantalus Creek discharge graph showing Steamboat Geyser's 2:46 PM major eruption on 8 October 2023.
08 Oct 2023 @ 1446 JSJ https://www.flickr.com/photos/jsjgeology/53243476922 Norris Junction seismogram showing Steamboat Geyser's 2:46 PM major eruption on 8 October 2023.
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.
Baseline does not exist.