Last Known Eruption
187d 5h 44m ago

Latest Eruptions

Eruption DurationInterval
16 Oct 2023 @ 17043m
16 Oct 2023 @ 17013m
16 Oct 2023 @ 16581d 41m
15 Oct 2023 @ 16175d 23h 19m
09 Oct 2023 @ 16584m
09 Oct 2023 @ 16546m
09 Oct 2023 @ 1648 ini23h 21m
08 Oct 2023 @ 17274m
08 Oct 2023 @ 1723 ini4h 37m
08 Oct 2023 @ 12464m
08 Oct 2023 @ 1242 ini1d 17h 25m
06 Oct 2023 @ 19174m
06 Oct 2023 @ 1913 ini4h 35m
06 Oct 2023 @ 1438 ini19h 47m
05 Oct 2023 @ 18514h 37m
05 Oct 2023 @ 1414 ns4m
05 Oct 2023 @ 141021m
05 Oct 2023 @ 1349~1.5m 21m
05 Oct 2023 @ 132819m
05 Oct 2023 @ 130923m
05 Oct 2023 @ 124623m
05 Oct 2023 @ 122330m
05 Oct 2023 @ 115323h 38m
04 Oct 2023 @ 12153m
04 Oct 2023 @ 1212 ns1d 1h 43m
03 Oct 2023 @ 10293m
03 Oct 2023 @ 10262d 16h 30m
30 Sep 2023 @ 17564m
30 Sep 2023 @ 1752 ini3h 10m
30 Sep 2023 @ 14421h 4m
30 Sep 2023 @ 1338 ini19h 0m
29 Sep 2023 @ 18386m
29 Sep 2023 @ 1832 ini1d 6h 22m
28 Sep 2023 @ 12103m
28 Sep 2023 @ 1207 ini4h 29m
28 Sep 2023 @ 07384m
28 Sep 2023 @ 07348m
28 Sep 2023 @ 07261d 12h 54m
26 Sep 2023 @ 18324m
26 Sep 2023 @ 18288h 33m
26 Sep 2023 @ 09554m
26 Sep 2023 @ 0951 ini22h 38m
25 Sep 2023 @ 11138m
25 Sep 2023 @ 11051d 23m
24 Sep 2023 @ 10427m
24 Sep 2023 @ 1035 ini1d 1h 6m
23 Sep 2023 @ 09292m
23 Sep 2023 @ 0927 ini1d 15h 47m
21 Sep 2023 @ 1740:003m
21 Sep 2023 @ 17371d 2h 33m
20 Sep 2023 @ 1504 ns19h 38m
19 Sep 2023 @ 19264h 48m
19 Sep 2023 @ 1438 ini4h 31m
19 Sep 2023 @ 10074m
19 Sep 2023 @ 1003 ini15h 18m
18 Sep 2023 @ 18453m
18 Sep 2023 @ 184221h 42m
17 Sep 2023 @ 21002m
17 Sep 2023 @ 2058 ini4h 27m
17 Sep 2023 @ 16315m
17 Sep 2023 @ 16267m
17 Sep 2023 @ 1619 ini9h 8m
17 Sep 2023 @ 07113m
17 Sep 2023 @ 070814h 43m
16 Sep 2023 @ 16252m
16 Sep 2023 @ 1623 ini1d 1h 3m
15 Sep 2023 @ 15203m
15 Sep 2023 @ 1517 ini4h 33m
15 Sep 2023 @ 10445m
15 Sep 2023 @ 10396m
15 Sep 2023 @ 1033 ini3h 0m
15 Sep 2023 @ 07332d 23h 56m
12 Sep 2023 @ 07373m
12 Sep 2023 @ 0734 ini1d 15h 9m
10 Sep 2023 @ 16253m
10 Sep 2023 @ 1622 ini4h 27m
10 Sep 2023 @ 11554m
10 Sep 2023 @ 11513m
10 Sep 2023 @ 1148 ini4h 34m
10 Sep 2023 @ 07143m
10 Sep 2023 @ 071111h 23m
09 Sep 2023 @ 19483m
09 Sep 2023 @ 19454h 37m
09 Sep 2023 @ 1508 ini2d 23h 21m
06 Sep 2023 @ 15473m
06 Sep 2023 @ 1544 ini5h 27m
06 Sep 2023 @ 10173m
06 Sep 2023 @ 1014 ini19h 45m
05 Sep 2023 @ 1429 ?3m
05 Sep 2023 @ 14268m
05 Sep 2023 @ 14181d 2h 42m
04 Sep 2023 @ 113621h 52m
03 Sep 2023 @ 13444m
03 Sep 2023 @ 13401d 2h 59m
02 Sep 2023 @ 10412d 44m
31 Aug 2023 @ 09574m
31 Aug 2023 @ 09531d 2h 55m
30 Aug 2023 @ 065813m
30 Aug 2023 @ 064514h 12m
29 Aug 2023 @ 163314m

Interval Statistics

Interval Count100
Min2m
Max5d 23h 19m
Mean11h 31m
Median26m
Initial-to-Initial
Interval Count24
Min4h 14m
Max5d 20h 46m
Mean1d 9h 16m
Median1d 31m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
29146 24 Sep 2023 @ 1048 --- Tara Possible third Morning's Thief eruption but hard to tell due to steam.
28060 06 Sep 2023 @ 1009 --- Graham Boiled up.
27572 13 Aug 2023 @ 1900 --- minissa Full and bubbling
27569 13 Aug 2023 @ 1712 --- minissa Water just becoming visible
27350 30 Jul 2023 @ 2309 --- Tara boiled up with no eruption
27051 13 Jul 2023 @ 0752 13 Jul 2023 @ 0756 LynnS Boiled up 1 to 2 meters high but did not erupt in bursts
27059 12 Jul 2023 @ 2106 --- Tara visible splashes, continued until initial eruption at 2113
26990 10 Jul 2023 @ 1458 --- minissa This was one of up to 5 independent solo eruptions; the thief's pool, which been full and boiling remained high till the series ended
26648 24 Jun 2023 @ 1803 --- Graham Full and bubbling.
26625 23 Jun 2023 @ 1128 --- Graham Small splash above the rim. Also 1131, 1134, 1144
26573 21 Jun 2023 @ 1633 --- JSJ Steam from Fountain's eruption obscured Morning's Thief for most of the time. Visible low to moderately low spouting at 1633. Surging of moderate height at 1634 (twice).
26519 20 Jun 2023 @ 1437 20 Jun 2023 @ 1627 Craigmon99 Boiling constantly
26035 03 Jun 2023 @ 2007 03 Jun 2023 @ 2027 Tara Fountain started at 2001 but water was not immediately visible in Morning's Thief. It rose with boiling at 2007 and gradually filled its basin over the next 5 minutes. Starting 17 minutes into Fountain, MT had a series of boils at 2018, 2019, and 2020 that reached a few feet high but did not lead to an eruption. After that the pool stayed high until just as Fountain was ending at 2027.
25758 24 May 2023 @ 1450 --- bbev Water level high and boiling
25731 23 May 2023 @ 1854 23 May 2023 @ 1915 Tara Low boiling appeared at 1854. There were several small domes but not really a full boil up. Then the boiling gradually lessened and the water level gradually rose until it was near the top of the inner crater at 1906. The water stayed high with slight fluctuations and light bubbling until 1915, right before Fountain ended.
25307 30 Apr 2023 @ 2011 --- SantaFe108 After Fountain. Boiled up but didn't erupt.
24707 17 Oct 2022 @ 1908 --- Tara boil up, no eruption
24424 16 Oct 2022 @ 1454 --- Tara boil up, no eruption
24275 05 Oct 2022 @ 1839 --- steve Boil no eruption
24159 29 Sep 2022 @ 0934 --- ThomasR Attempted to erupt
24637 16 Sep 2022 @ 1617 --- Tara low, weak boil up
24638 16 Sep 2022 @ 1557 --- Tara water became visible rising in crater with boiling
23751 11 Sep 2022 @ 1354 --- steve Boiled
23750 11 Sep 2022 @ 1350 --- steve Boiled
23709 10 Sep 2022 @ 1340 --- ThomasR Boil in Morning’s Thief
23680 09 Sep 2022 @ 1633 --- Stephen_Gemar Boiled up, no eruption.
23685 09 Sep 2022 @ 1621 --- steve Low boiling
23665 08 Sep 2022 @ 2004 --- Tara long boil up, no eruption
23590 05 Sep 2022 @ 1423 --- Dave W Filled but did not erupt
23453 27 Aug 2022 @ 1805 27 Aug 2022 @ 2011 Tara No water visible in MT from 1805 until 3 minutes into Fountain at 1947. The basin filled at about 1950 and the water remained at that level with gentle boiling until the end of Fountain. The water level began to drop at 2011.
24552 26 Aug 2022 @ 1833 --- Tara boil up with no eruption 3 minutes before the start of Fountain
23418 23 Aug 2022 @ 2208 --- Tara boiled up 4 minutes prior to Fountain
23245 18 Aug 2022 @ 1029 --- steve Boil, no eruption
23230 17 Aug 2022 @ 0906 --- steve One minute boil
23229 17 Aug 2022 @ 0851 --- steve Low boil
23214 16 Aug 2022 @ 0755 --- steve Low boiling
23200 15 Aug 2022 @ 1322 --- steve Boiled to 6 feet but that’s all
23199 15 Aug 2022 @ 1308 --- steve A second small boil.
23198 15 Aug 2022 @ 1304 --- steve Morning’s Thief boiled to a few feet.
23157 12 Aug 2022 @ 1631 --- minissa Just noting that MT again filled and boiled, remaining within an inch either way of OF and remained at this level till Fountain drained, at which point it also drained.
23155 12 Aug 2022 @ 1626 --- minissa Bubbled to 2-3 feet, then quit
23086 06 Aug 2022 @ 1702 --- Tara strong boil up with lots of runoff into Morning but did not fully erupt
23066 05 Aug 2022 @ 2027 --- Tara low boil up, water level never reached rim
23019 03 Aug 2022 @ 2025 --- Tara strong boil up, no eruption
22937 29 Jul 2022 @ 1603 --- LynnS Boiled up
22882 27 Jul 2022 @ 1348 --- LynnS Boiled up nut did not erupt
23020 26 Jul 2022 @ 2138 --- Tara low boil up
22817 23 Jul 2022 @ 1949 --- steve Good boil to maybe 6-10 feet high
22573 14 Jul 2022 @ 1246 --- LynnS Boiled again
22572 14 Jul 2022 @ 1241 --- LynnS Boiled
22478 11 Jul 2022 @ 0031 --- Tara noisy boil up, not a full eruption
22455 10 Jul 2022 @ 0106 --- Tara boiled up without erupting
22422 09 Jul 2022 @ 0937 --- steve Boiled, but only boiled.
22413 08 Jul 2022 @ 1833 --- Tara boiled up without erupting
22412 08 Jul 2022 @ 1825 --- Tara boiled up without erupting
22402 08 Jul 2022 @ 1252 --- steve Low boil to 1-2 feet, no eruption
22302 03 Jul 2022 @ 1945 --- steve Came up, boiled, but no boom.
22345 30 Jun 2022 @ 1902 --- Tara boiled up but did not erupt
22220 29 Jun 2022 @ 2020 --- Tara Boiled up but did not erupt. This was the only time I saw water.
22184 28 Jun 2022 @ 0947 --- LynnS Boiled up but did not erupt
22039 19 Jun 2022 @ 1823 --- Tara Saw water boil up, but could not see if there was an eruption. MT was obscured by Fountain's steam after that.
22038 19 Jun 2022 @ 1816 --- Tara Low boil-up just before Fountain rise.
22031 18 Jun 2022 @ 2013 --- Tara boiled up, no eruption
22030 18 Jun 2022 @ 1511 --- Tara boiled up but did not erupt
21878 09 Jun 2022 @ 1911 --- Tara Big boil up, not a full eruption
21814 07 Jun 2022 @ 1632 --- Graham Boiled up 4m before Fountain started.
21641 01 Jun 2022 @ 1529 --- Stephen_Gemar First water in Thief. Boiled up but no eruption. Nothing further observed from Morning’s Thief, but vision was obscured by steam.
21409 21 May 2022 @ 1715 --- Tara When I looked at MT late in Fountain's eruption, it was nearly full with somw bubbling. This continued for several minutes. It began to drop gradually out of sight at 1715, about 1 minute before Fountain ended.
21170 05 May 2022 @ 1421 --- Tara boiling visible
21127 29 Apr 2022 @ 1510 --- DanS Boiled up but did not erupt
20040 18 Oct 2021 @ 1557 18 Oct 2021 @ 1559 Tara variable boiling from a.few inches below overflow
20039 18 Oct 2021 @ 1547 --- Tara boiling at low water level
20353 15 Oct 2021 @ 1737 --- Tara boiled up but did not erupt
20354 05 Oct 2021 @ 1428 --- Tara boiled up but did not erupt
19719 24 Sep 2021 @ 1207 --- SteveO Boiled up, no eruption.
19665 20 Sep 2021 @ 1349 --- Graham Splashy boil.
19536 13 Sep 2021 @ 1053 --- Graham Big boil
19406 09 Sep 2021 @ 1425 09 Sep 2021 @ 1428 Graham Boiled up, 15m after Fountain. Looked more like a small vertical eruption rather than the rounded boil it usually does.
19405 09 Sep 2021 @ 1406 --- Graham Water visible in MT. Just moved to the overlook so it might have been visible earlier. 4min before Fountain erupted.
19264 03 Sep 2021 @ 2008 --- Tara boiled up, no eruption
19181 31 Aug 2021 @ 0815 --- Graham Boiled up before Fountain.
19023 23 Aug 2021 @ 1707 --- William boiled to the crater rim but did not erupt.
18989 22 Aug 2021 @ 1546 22 Aug 2021 @ 1555 minissa Maintained a full, bubbling pool for most of this time, but if there was a follow-up eruption, the steam from Fountain and Clepsydra obscured it.
18970 20 Aug 2021 @ 2018 --- minissa Bubbled up but did not erupt
18969 20 Aug 2021 @ 2006 --- minissa Bubbled up but did not erupt
18757 31 Jul 2021 @ 0639 --- LynnS Boiled up about 3 feet above ground but did not erupt
18658 25 Jul 2021 @ 1051 --- LynnS Boiled but did not erupt
18634 24 Jul 2021 @ 0929 --- LynnS Boiled but did not erupt
18554 20 Jul 2021 @ 2011 --- Tara Boiled up, no eruption
18534 19 Jul 2021 @ 1635 --- Tara boiled up but did not erupt
18523 19 Jul 2021 @ 1101 --- steve Boiled but did not erupt
18470 16 Jul 2021 @ 2124 --- steve Boiled to 3-4 feet
18398 12 Jul 2021 @ 2052 --- William boiled and tried pretty hard to erupt for ~30s but did not
18376 11 Jul 2021 @ 1919 --- Tara low boil up, no eruption
18301 06 Jul 2021 @ 2127 06 Jul 2021 @ 2130 Tara low boiling, did not really try to erupt
18267 04 Jul 2021 @ 2118 --- Tara Weak boil up.
18268 04 Jul 2021 @ 2105 --- Tara Approximate time of first boil up prior to Fountain.
18251 02 Jul 2021 @ 2202 --- Tara boiled up, no eruption
18250 02 Jul 2021 @ 2152 --- Tara boiled up from below overflow
18249 02 Jul 2021 @ 2148 --- Tara boiled up from below overflow
EntrySourceLinkComment
09 Aug 2018 @ 1223 JSJ https://www.flickr.com/photos/jsjgeology/45811573254 Photo (1 of 4) of Morning Thief's Geyser's 12:23 PM eruption on 9 August 2018.
09 Aug 2018 @ 1218 JSJ https://www.flickr.com/photos/jsjgeology/46483349132 Photo (1 of 2) of Morning Thief's Geyser's 12:18 PM eruption on 9 August 2018.
06 Aug 2017 @ 1304 JSJ https://www.flickr.com/photos/jsjgeology/36442715011 Photo (out of 6) of Morning's Thief Geyser's 1:04 PM eruption on 6 August 2017.
10 Aug 2017 @ 1700 JSJ https://www.flickr.com/photos/jsjgeology/36183820090 Photo (out of 3) of Morning's Thief Geyser's 5:00 PM eruption on 10 August 2017.
10 Aug 2017 @ 1703 JSJ https://www.flickr.com/photos/jsjgeology/36183816810 Photo (1 of 4) of Morning's Thief Geyser's 5:03 to 5:04 eruption on 10 August 2017.
14 May 2015 @ 1715 JSJ https://www.youtube.com/watch?v=NHF-LylA7UY Video of the 5:15 PM eruption of Morning Thief's Geyser on 14 May 2015.
08 Jul 2014 @ 0826 JSJ https://www.youtube.com/watch?v=7zuQk8JsNTQ Clip # 1 of this video compilation depicts the Morning's Thief-Fountain dual eruption.
12 Jul 2014 @ 1532 JSJ https://www.youtube.com/watch?v=RKmS2pgjyGw Clips # 1-2 and # 7-8 of this video compilation depict the Fountain-Morning's Thief dual eruptions at 1532-1533 and 1536-1537.
Baseline does not exist.