Last Known Eruption
1d 10h 44m ago

Latest Eruptions

Eruption DurationInterval
11 Dec 2024 @ 1121 ie wc4d 23h 18m
06 Dec 2024 @ 1203 ie wc3d 6m
03 Dec 2024 @ 1157 ie wc2d 20h 32m
30 Nov 2024 @ 1525 ie wc1d 3h 12m
29 Nov 2024 @ 1213 ie wc2d 20m
27 Nov 2024 @ 1153 ie wc2d 18m
25 Nov 2024 @ 1135 ie wc9d 23h 39m
15 Nov 2024 @ 1156 ie wc19h 38m
14 Nov 2024 @ 1618 ns wc3d 7h 8m
11 Nov 2024 @ 0910 ie wc22h 19m
10 Nov 2024 @ 1051 ie wc2d 8m
08 Nov 2024 @ 1043 ie wc16h 27m
07 Nov 2024 @ 1816 ie wc1d 5h 27m
06 Nov 2024 @ 1249 ie wc1d 19m
05 Nov 2024 @ 1230 ie wc4d 33m
01 Nov 2024 @ 1257 ie wc1d 21h 51m
30 Oct 2024 @ 1506 ie wc4d 7h 31m
26 Oct 2024 @ 0735 ie wc5d 19h 18m
20 Oct 2024 @ 1217 ie wc1d 6h 47m
19 Oct 2024 @ 0530 A1d 19h 30m
17 Oct 2024 @ 1000 A23h 51m
16 Oct 2024 @ 1009 ie wc21h 22m
15 Oct 2024 @ 1247~27m 4d 22h 17m
10 Oct 2024 @ 1430 ie wc4d 11h 0m
06 Oct 2024 @ 0330 A1d 16h 31m
04 Oct 2024 @ 1059 ie18h 26m
03 Oct 2024 @ 163325m 35s 1d 0m
02 Oct 2024 @ 1633 ie1d 22h 48m
30 Sep 2024 @ 174524m 1d 2h 33m
29 Sep 2024 @ 151228m 0s 1d 3h 32m
28 Sep 2024 @ 114027m 55s 1d 8h 40m
27 Sep 2024 @ 0300 A1d 12h 52m
25 Sep 2024 @ 140828m 0s 1d 5h 8m
24 Sep 2024 @ 090024m 35s 23h 52m
23 Sep 2024 @ 090823m 30s 22h 31m
22 Sep 2024 @ 103722m 25s 20h 56m
21 Sep 2024 @ 134122m 25s 22h 53m
20 Sep 2024 @ 1448 ie1d 1h 27m
19 Sep 2024 @ 132126m 15s 1d 10h 39m
18 Sep 2024 @ 0242 ns wc1d 11h 4m
16 Sep 2024 @ 153830m 5s 1d 4h 39m
15 Sep 2024 @ 105919m 18h 52m
14 Sep 2024 @ 160728m 1d 10h 7m
13 Sep 2024 @ 0600 A1d 15h 7m
11 Sep 2024 @ 145318m 1d 3h 41m
10 Sep 2024 @ 1112 ie1d 1h 59m
09 Sep 2024 @ 0913 ie wc2d 21h 41m
06 Sep 2024 @ 113226m 23h 40m
05 Sep 2024 @ 1152 ie wc17h 9m
04 Sep 2024 @ 184327m 1d 8h 53m
03 Sep 2024 @ 0950 ie19h 24m
02 Sep 2024 @ 142623m 1d 2h 7m
01 Sep 2024 @ 121927m 23h 50m
31 Aug 2024 @ 1229~22.5m 1d 11m
30 Aug 2024 @ 121822m 1d 21h 50m
28 Aug 2024 @ 1428 ie wc3d 22m
25 Aug 2024 @ 140625m 27s 1d 5h 3m
24 Aug 2024 @ 090324m 5s 1d 59m
23 Aug 2024 @ 080427m 51s 23h 45m
22 Aug 2024 @ 081923m 47s 1d 21h 21m
20 Aug 2024 @ 105828m 6s 1d 14m
19 Aug 2024 @ 104422m 40s 21h 56m
18 Aug 2024 @ 124826m 1s 1d 3h 49m
17 Aug 2024 @ 085924m 20h 3m
16 Aug 2024 @ 125623m 59s 23h 11m
15 Aug 2024 @ 1345 ie18h 19m
14 Aug 2024 @ 1926 ie wc1d 5h 38m
13 Aug 2024 @ 1348 ie wc1d 1h 42m
12 Aug 2024 @ 1206 ie1d 10h 36m
11 Aug 2024 @ 0130 A19h 35m
10 Aug 2024 @ 0555 ie wc22h 42m
09 Aug 2024 @ 071328m 50s 6d 6h 13m
03 Aug 2024 @ 0100 A2d 8h 32m
31 Jul 2024 @ 1628 ie wc18h 53m
30 Jul 2024 @ 2135 ie wc1d 10h 52m
29 Jul 2024 @ 104323m 21h 11m
28 Jul 2024 @ 1332 ie wc17h 28m
27 Jul 2024 @ 2004 ie wc21h 30m
26 Jul 2024 @ 2234 ie20h 19m
26 Jul 2024 @ 0215 A17h 47m
25 Jul 2024 @ 082823.5m 23h 10m
24 Jul 2024 @ 091826m 1d 12h 4m
22 Jul 2024 @ 2114 ns1d 21h 49m
20 Jul 2024 @ 232520m 19h 55m
20 Jul 2024 @ 0330 A18h 8m
19 Jul 2024 @ 092222m 22h 4m
18 Jul 2024 @ 111822m 23h 8m
17 Jul 2024 @ 121023m 45s 23h 0m
16 Jul 2024 @ 131025m 1d 5h 0m
15 Jul 2024 @ 081024m 1d 2h 30m
14 Jul 2024 @ 0540 ie20h 29m
13 Jul 2024 @ 091121m 22h 34m
12 Jul 2024 @ 103726m 1d 4h 12m
11 Jul 2024 @ 0625 ie20h 55m
10 Jul 2024 @ 0930 A2d 9h 45m
07 Jul 2024 @ 23451d 6h 3m
06 Jul 2024 @ 174232m 1d 1h 5m
05 Jul 2024 @ 163727m 1d 4h 17m
04 Jul 2024 @ 1220 ie wc1d 24m
03 Jul 2024 @ 115625m 1d 8h 26m

Interval Statistics

Interval Count100
Min16h 27m
Max9d 23h 39m
Mean1d 14h 58m
Median1d 2h 52m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
37764 25 Oct 2024 @ 1745 --- Ajw A big push of water at 1745 but slowed down after a minute. Still no eruption as of 1757. Sun is setting and temp dropping. Giving it up. Maybe in 2025...
37593 16 Oct 2024 @ 1022 --- Lizzysa End of eruption
37529 12 Oct 2024 @ 1140 --- rwd03 In overflow with bubbles, no eruption yet while leaving at 1230.
37202 28 Sep 2024 @ 0904 --- ThomasR No eruption yet
37174 26 Sep 2024 @ 1829 --- CP Not eruption. Leaving area.
37170 26 Sep 2024 @ 1704 --- CP Still waiting.
37167 26 Sep 2024 @ 1410 --- CP Not yet.
37164 26 Sep 2024 @ 1128 --- CP No eruption yet.
37139 25 Sep 2024 @ 0834 --- ThomasR No eruption yet
37129 24 Sep 2024 @ 0858 --- ThomasR No eruption yet
37058 19 Sep 2024 @ 0859 --- ThomasR No eruption yet
37042 18 Sep 2024 @ 1040 --- ThomasR No overflow yet
37028 17 Sep 2024 @ 1715 --- ThomasR No Artemisia yet
37009 16 Sep 2024 @ 1147 --- ThomasR No Artemisia yet
36971 14 Sep 2024 @ 0854 --- ThomasR No Artemisia yet
36837 07 Sep 2024 @ 1905 --- CP No eruption. Left area.
36831 07 Sep 2024 @ 1639 --- CP Pool very high for the last hour or so.
36824 07 Sep 2024 @ 1303 --- CP Overflow all the way to the little waterfall.
36821 07 Sep 2024 @ 0935 --- CP Pool level is low, but all thee surrounding sinter is dry, so no eruption recently.
36621 30 Aug 2024 @ 0926 --- BrandonC No overnight eruption
36620 29 Aug 2024 @ 1942 --- BrandonC Italy down 3” waterfall flowing Probably went early morning
36505 21 Aug 2024 @ 1933 --- grizzlygrover Was high water (swan's head half submerged) when I arrived at about 1800. Water level dropped slowly for the entire hour I was there with swan's neck over half an inch wide when I left.
36483 20 Aug 2024 @ 0824 --- RLJones Pool in light overflow with light convective bubbles on surface of pool
36305 06 Aug 2024 @ 1852 --- Dan A Erupted sometime today, water already in sundress but no waterfall yet.
36236 02 Aug 2024 @ 2230 --- Joel Pool full, can’t tell water level due to no light
36175 30 Jul 2024 @ 1105 --- EmilyW Pool crashed, unattended
36172 30 Jul 2024 @ 0624 --- EmilyW Pool high and not in recovery. Does not appear to have erupted overnight. In my opinion.
36154 29 Jul 2024 @ 0735 --- PamM Did not go overnight. Pool good but maybe still some time
36090 25 Jul 2024 @ 0642 --- PamM Water is up but Blinky has a smile Has not gone yet
36067 24 Jul 2024 @ 0855 --- deanl I don't think this thing erupted overnight. Joel, I hope I can find you to chat.
35937 17 Jul 2024 @ 1014 --- PamM Pool looks full Blinks has a smile
35909 16 Jul 2024 @ 0700 --- PamM Pool up but still low Didn’t go recently
35873 13 Jul 2024 @ 0851 --- PamM Pool full But Blinky has a smile But did not go overnight
35714 04 Jul 2024 @ 1447 --- PamM Steam cloud must have been Artemisia. Water 18” down. Post eruptive
34744 29 May 2024 @ 0753 --- Mike C ended at 0753
28864 18 Oct 2023 @ 1455 --- DanS In light overflow, looks like eruption was early this morning.
28615 03 Oct 2023 @ 1130 03 Oct 2023 @ 1400 ThomasR No eruption during this time. A halfhearted push ended at ~1400.
28602 01 Oct 2023 @ 0854 --- ThomasR No eruption yet
28521 27 Sep 2023 @ 1700 27 Sep 2023 @ 1830 ThomasR Arrived at 1700, pool in overflow, most likely hasn't erupted yet. Had a decent push at ~1800.
28406 21 Sep 2023 @ 1800 22 Sep 2023 @ 0200 ThomasR Most likely erupted in this timeframe. Pool in overflow at 0900.
28393 21 Sep 2023 @ 1655 --- ThomasR Still no eruption. Over 24h now.
28390 21 Sep 2023 @ 1345 --- ThomasR No eruption yet.
28108 08 Sep 2023 @ 0855 --- Dan A No eruption yet
28084 07 Sep 2023 @ 1029 --- Mike C ended at 1029
28030 05 Sep 2023 @ 0908 --- PamM Pool in overflow but Blinky has a huge smile
27878 31 Aug 2023 @ 0940 --- PamM Overnight eruption No time Pool filling
27871 30 Aug 2023 @ 1900 --- Dave W No eruption yet, as of 1900 when I left.
27867 30 Aug 2023 @ 1225 --- Darcie No eruption yet
27737 23 Aug 2023 @ 1633 --- Dan A Post eruptive, pool several feet down.
27603 14 Aug 2023 @ 2001 --- minissa About 6" below OF post 1710 eruption
27554 13 Aug 2023 @ 0834 --- MattV Pool full and in medium overflow when we arrived at 610. Italy full. Wu Tang and Apostrophe ~1/2” down. Pushed about 820, then the main pool crashed about 830 to well below overflow.
27534 11 Aug 2023 @ 2012 --- MattV Great push at 1820. Water dropped a fair amount at 1901. Still overflowing. Left 2047
27516 11 Aug 2023 @ 1013 --- MattV In overflow. Water below horseshoe and goose. Italy and Wutang about 1-1.5” below rim.
27476 09 Aug 2023 @ 1253 --- MattV Post eruptive. Pool low, well below sundress. No overflow. Runoff pretty dry. Probably went this morning.
27455 07 Aug 2023 @ 1805 --- MattV Multiple pushes while we sat the afternoon. Water levels good, but we were forced out by weather. Wouldn’t be surprised if it goes in the next little while.
27240 25 Jul 2023 @ 2345 --- deanl left it - no eruption yet. GREAT push at 2030, none after really
26879 07 Jul 2023 @ 0744 --- Deborah Overflow last night around 21:15. No overflow this morning at 7:44.
26697 27 Jun 2023 @ 0846 --- Graham In overflow
26341 15 Jun 2023 @ 1230 15 Jun 2023 @ 1415 CrisG no eruption yet. pool remains in overflow.
26153 08 Jun 2023 @ 1115 --- SantaFe108 24 hour mark, no eruption yet.
26119 07 Jun 2023 @ 1020 --- SantaFe108 No eruption yet.
25950 01 Jun 2023 @ 2045 --- RMichaels No eruption as of 2045.
25898 29 May 2023 @ 1911 --- User34 No eruption yet. Has been sitting at the same exact middle level for 2½+ hours
25636 21 May 2023 @ 0823 --- Graham Pool down a couple of feet.
25172 12 Apr 2023 @ 0955 --- mhreed Pool is just a couple inches below overflow.
24983 06 Feb 2023 @ 1419 --- Colin_W Pool looking full.
24952 26 Jan 2023 @ 1015 --- Colin_W Pool looking full.
24906 15 Jan 2023 @ 1026 --- Colin_W Pool looking full or at least more so than when I normally get here.
24645 06 Nov 2022 @ 1155 --- mhreed No eruption yet. 15 m of cord.
24639 04 Nov 2022 @ 1417 --- mhreed No eruption yet.
24146 28 Sep 2022 @ 1430 --- ThomasR No eruption yet
24132 27 Sep 2022 @ 0830 --- ThomasR Likely had no overnight eruption.
24049 24 Sep 2022 @ 0820 --- ThomasR Had no overnight eruption. Last eruption 22h 21m ago.
23928 20 Sep 2022 @ 0809 --- RLJones It is currently in overflow
23479 29 Aug 2022 @ 1200 29 Aug 2022 @ 2030 TLH Various gazers observed from noon until 20:30. Pool levels were good when we left at 20:30.
22669 15 Jul 2022 @ 1419 --- hkoenig [In Overflow]
22483 11 Jul 2022 @ 0811 --- Dan A No overnight eruption, earlier wc post was incorrect
22224 30 Jun 2022 @ 0825 --- Dan A Erupted overnight, pool below overflow
22074 23 Jun 2022 @ 0842 --- Dan A Erupted overnight, Italy, wu tang, apostrophe all low, pool in overflow.
21130 29 Apr 2022 @ 0700 29 Apr 2022 @ 1230 RMichaels Artemisia had pushes at about 0800, 0900, and 1000. The pool crashed around 1030 and never really came back up again until I left at 1230. Prevalent north wind throughout most of the morning.
20744 21 Jan 2022 @ 1625 --- BrandonC No eruption yet
20737 20 Jan 2022 @ 1405 --- BrandonC No eruption yet
20223 30 Oct 2021 @ 1444 --- DanS Pool low. Must have erupted earlier today.
19316 05 Sep 2021 @ 1325 --- Graham Post erupted, already started recovery.
19083 26 Aug 2021 @ 1252 --- music_geek Pool low, post eruptive.
18862 08 Aug 2021 @ 0629 --- eh no eruption yet
18097 25 Jun 2021 @ 2245 --- William did not erupt prior to this time.
17934 19 Jun 2021 @ 2100 --- WillBoekel no eruption yet
17750 13 Jun 2021 @ 1717 --- Craigmon99 2 feet below overflow
17661 11 Jun 2021 @ 0904 --- TheHikingDude High water, low boiling across the entire pool, about 2 inches from overflow
17466 04 Jun 2021 @ 2025 --- William high water
17464 04 Jun 2021 @ 1928 04 Jun 2021 @ 1955 William high water on arrival, dropped at 19:55
17365 02 Jun 2021 @ 0655 --- Mike C below overflow about 1 foot
15946 04 Sep 2020 @ 0004 --- BrandonC No eruption as of 0004
15924 31 Aug 2020 @ 1916 --- William water starting to rise
15893 29 Aug 2020 @ 1900 --- deanl water level was about 18-24" below overflow, so my guess is an eruption between 15 & 16:00.
15105 25 Jul 2020 @ 1950 --- William 1st overflow of sundress
14987 15 Jul 2020 @ 0600 15 Jul 2020 @ 0800 William No Arte overnight. high water at 07:10, low at 07:52
14752 28 Jun 2020 @ 0735 --- LynnS About 6-8 inches below the rim of the crater.
14739 26 Jun 2020 @ 1826 --- RLE Klammer Goose neck submerged as of 18:26
EntrySourceLinkComment
05 Sep 2019 @ 0910 Michael https://darksky.net/details/44.4618,-110.8369/2019-9-05/us12/en Weather on 2019-09-05 at Old Faithful, WY according to Dark Sky Time Machine
27 Jul 2019 @ 0702 Michael https://darksky.net/details/44.4618,-110.8369/2019-7-27/us12/en Weather on 2019-07-27 at Old Faithful, WY according to Dark Sky Time Machine
10 Aug 2019 @ 0727 Michael https://darksky.net/details/44.4618,-110.8369/2019-8-10/us12/en Weather on 2019-08-10 at Old Faithful, WY according to Dark Sky Time Machine
05 Sep 2019 @ 0910 Michael https://youtu.be/N_1tIxoKIaU?t=1094 Old Faithful Geyser Streaming Webcam Capture of 2019-09-05 @ 0911:56
27 Jul 2019 @ 0702 Michael https://youtu.be/P7HwyIOtUpU?t=1522 Old Faithful Geyser Streaming Webcam Capture of 2019-07-27 @ 0654:00
10 Aug 2019 @ 0727 Michael https://youtu.be/NuegRYu7l1g?t=446 Old Faithful Geyser Streaming Webcam Capture of 2019-08-10 @ 0724:34
16 May 2015 @ 1141 JSJ https://www.flickr.com/photos/jsjgeology/18179663412 Photo (1 of 19) of Artemisia Geyser's 11:41 AM to 12:08 PM eruption on 16 May 2015.
14 Aug 2014 @ 1154 JSJ https://www.flickr.com/photos/jsjgeology/15465524472 Photo (1 of 6) of Artemisia Geyser's 11:54 to 12:18 PM eruption on 14 August 2014.
01 Sep 2012 @ 1453 JSJ https://www.youtube.com/watch?v=GM2_GU13R0w Video by Will Boekel of Artemisia Geyser's 2:53 to 3:21 PM eruption on 1 September 2012.
14 Aug 2014 @ 1154 JSJ https://www.youtube.com/watch?v=qAQZfQVyU98 Video of Artemisia Geyser's 11:54 AM to 12:18 PM eruption on 14 August 2014.
16 May 2015 @ 1141 JSJ https://www.youtube.com/watch?v=s-NNSHy25Qw Video of Artemisia Geyser's 11:41 AM to 12:08 PM eruption on 16 May 2015.
21 Aug 2014 @ 2033 kcmule http://www.coloradobills.com/yellowstone/ART2033.08212014.flv
Baseline does not exist.