Last Known Eruption
6d 21h 48m ago

Latest Eruptions

Eruption DurationInterval
15 Jun 2018 @ 0657 ie15h 51m
14 Jun 2018 @ 1506 ie1d 14m
13 Jun 2018 @ 145225m 21h 19m
12 Jun 2018 @ 17332d 4h 9m
10 Jun 2018 @ 1324 ie1d 16h 14m
08 Jun 2018 @ 2110 ie1d 10h 50m
07 Jun 2018 @ 102023m 19h 52m
06 Jun 2018 @ 142823m 20h 52m
05 Jun 2018 @ 173623m 3d 7h 19m
02 Jun 2018 @ 1017 ie3d 21h 50m
29 May 2018 @ 122727m 23h 28m
28 May 2018 @ 125924m 6d 3h 2m
22 May 2018 @ 0957 ns5d 23h 10m
16 May 2018 @ 1047 ie20h 47m
15 May 2018 @ 1400 ns25m 20h 35m
14 May 2018 @ 1725 ie1d 6h 14m
13 May 2018 @ 1111 ie1d 20h 2m
11 May 2018 @ 1509 ie2d 22h 22m
08 May 2018 @ 1647 ie10d 8h 20m
28 Apr 2018 @ 08275d 18h 7m
22 Apr 2018 @ 1420 ie14h 20m
22 Apr 2018 @ 0000 A64d 14h 20m
16 Feb 2018 @ 0840 ie16d 21h 39m
30 Jan 2018 @ 1101 ie103d 20m
19 Oct 2017 @ 1141 ie14d 7m
05 Oct 2017 @ 1134 ie1d 17h 28m
03 Oct 2017 @ 1806 ns1d 3h 56m
02 Oct 2017 @ 1410 ie2d 57m
30 Sep 2017 @ 1313 ie19h 38m
29 Sep 2017 @ 1735 ie4d 8h 6m
25 Sep 2017 @ 0929 ie21h 4m
24 Sep 2017 @ 1225 ie1d 17h 41m
22 Sep 2017 @ 1844 ie7d 33m
15 Sep 2017 @ 1811 ie1d 59m
14 Sep 2017 @ 1712 ie17h 12m
14 Sep 2017 @ 0000 A20h 30m
13 Sep 2017 @ 0330 A1d 1h 30m
12 Sep 2017 @ 0200 A1d 2h 0m
11 Sep 2017 @ 0000 A1d 0m
10 Sep 2017 @ 0000 A1d 0m
09 Sep 2017 @ 0000 A17h 0m
08 Sep 2017 @ 0700 A20h 38m
07 Sep 2017 @ 102223m 25s 22h 33m
06 Sep 2017 @ 114921m 30s 1d 6h 49m
05 Sep 2017 @ 0500 A1d 2h 30m
04 Sep 2017 @ 0230 A17h 41m
03 Sep 2017 @ 0849 ie14h 31m
02 Sep 2017 @ 1818 ie12h 48m
02 Sep 2017 @ 0530 A20h 46m
01 Sep 2017 @ 084425m 15s 1d 35m
31 Aug 2017 @ 080925m 35s 22h 36m
30 Aug 2017 @ 093322m 22h 2m
29 Aug 2017 @ 113133m 1d 1h 1m
28 Aug 2017 @ 1030 ie22h 1m
27 Aug 2017 @ 12291d 18h 9m
25 Aug 2017 @ 182016m 1d 8h 41m
24 Aug 2017 @ 093922m 1d 32m
23 Aug 2017 @ 0907 ie21h 45m
22 Aug 2017 @ 1122 ie2d 16h 50m
19 Aug 2017 @ 1832 ie2d 9h 21m
17 Aug 2017 @ 0911 ie23h 29m
16 Aug 2017 @ 0942 ie3d 1h 51m
13 Aug 2017 @ 0751 ie21h 52m
12 Aug 2017 @ 0959 ie17h 42m
11 Aug 2017 @ 1617 ie2d 5h 30m
09 Aug 2017 @ 1047 ie19h 58m
08 Aug 2017 @ 14491d 37m
07 Aug 2017 @ 1412 ns22h 20m
06 Aug 2017 @ 155221m 2d 17h 36m
03 Aug 2017 @ 22163d 12h 38m
31 Jul 2017 @ 093822m 30s 22h 7m
30 Jul 2017 @ 113121m 30s 21h 7m
29 Jul 2017 @ 142424m 1d 2h 27m
28 Jul 2017 @ 115720h 30m
27 Jul 2017 @ 152721m 54s 20h 52m
26 Jul 2017 @ 183525m 1d 15m
25 Jul 2017 @ 1820 ns1d 12h 4m
24 Jul 2017 @ 0616 ie1d 13h 22m
22 Jul 2017 @ 165422m 22h 31m
21 Jul 2017 @ 182322m 2d 8h 45m
19 Jul 2017 @ 0938 ie13h 58m
18 Jul 2017 @ 194024m 1d 19h 39m
17 Jul 2017 @ 0001 A17h 31m
16 Jul 2017 @ 0630 A20h 17m
15 Jul 2017 @ 101324m 30s 1d 3h 10m
14 Jul 2017 @ 0703 ie1d 12h 11m
12 Jul 2017 @ 185225m 1d 3h 6m
11 Jul 2017 @ 154617h 46m
10 Jul 2017 @ 220023m 21h 30m
10 Jul 2017 @ 0030 A14h 31m
09 Jul 2017 @ 095922h 2m
08 Jul 2017 @ 115724m 23h 51m
07 Jul 2017 @ 120625m 1d 28m
06 Jul 2017 @ 1138 ie20h 42m
05 Jul 2017 @ 145625m 1d 45m
04 Jul 2017 @ 141124m 1d 4h 13m
03 Jul 2017 @ 0958 ns1d 3h 58m
02 Jul 2017 @ 0600 A18h 32m
01 Jul 2017 @ 112823h 31m
30 Jun 2017 @ 115727m 3d 6h 57m

Interval Statistics

Interval Count100
Min12h 48m
Max103d 20m
Mean3d 12h 44m
Median1d 33m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
8591 08 Jun 2018 @ 0555 08 Jun 2018 @ 1620 LynnS Artemisia overflow was audible in both channels and heavy steam in the runoff channel that goes over the brink of the hill when I arrived. Conditions were still the same when I left at 1620.
8387 01 Jun 2018 @ 1444 --- EricZ pool full, but not overflowing
8364 31 May 2018 @ 0848 --- donnielg Big steam cloud seen from Daisy at 08:48.
8356 30 May 2018 @ 1900 --- Mike C pool down about 4 feet
8346 30 May 2018 @ 0746 --- B**2 About 1 ft below overflow.
7982 21 Apr 2018 @ 1215 --- RMichaels Pool full and in overflow.
7976 20 Apr 2018 @ 1630 20 Apr 2018 @ 1700 RMichaels In overflow.
6330 13 Sep 2017 @ 0756 --- Mike C pool down about 1 foot
6288 12 Sep 2017 @ 0734 --- Mike C Just about to overflow
6247 09 Sep 2017 @ 2105 --- Dave W Still full and overflowing when I left at 2105. No eruption yet.
6174 09 Sep 2017 @ 1145 --- Dave W In overflow
5883 06 Sep 2017 @ 0655 --- RMichaels Artemisia is full and overflowing, but appears to have erupted sometime overnight.
5879 05 Sep 2017 @ 1835 --- RMichaels In overflow.
5797 05 Sep 2017 @ 0638 --- RMichaels Pool about 2.5 feet below overflow. Appears to have erupted recently.
5684 04 Sep 2017 @ 0654 --- RMichaels 6 inches below overflow.
5677 03 Sep 2017 @ 1541 --- JudyS full with overflow
5571 02 Sep 2017 @ 0918 --- c.barwin post eruptive... about a foot below the rim.
5455 27 Aug 2017 @ 1251 --- LotusBaker duration 22 minutes
5300 24 Aug 2017 @ 0814 --- Jake high water. strong audible upwelling of bubbles. all signs pointing to yes. didn't erupt
4591 01 Aug 2017 @ 0753 --- EmilyW Pool is down about 6 inches, erupted recently
4329 17 Jun 2017 @ 1131 --- B**2 Full & Overflow
4319 15 Jun 2017 @ 0710 --- B**2 Looks like inch or less from overflow.
4294 11 Jun 2017 @ 1036 --- B**2 About 1-2" below full.
4215 05 Jun 2017 @ 0725 --- B**2 Pool about 4" below full.
4200 04 Jun 2017 @ 0747 --- EmilyW Pool is full and overflowing
4174 02 Jun 2017 @ 1219 --- Stephen_Gemar Artemisia was in overflow when I arrived at 12:10
4166 01 Jun 2017 @ 0755 --- B**2 Very close, but not yet in overflow.
4159 31 May 2017 @ 1513 --- Archer 2-3 inches down.
4074 08 May 2017 @ 1427 --- Archer Recently post-eruptive. Down a little over a foot.
3808 25 Oct 2016 @ 1300 --- DanS Post eruptive. Pool down
3734 01 Oct 2016 @ 1455 --- Ajw Pool very full. Frequent bubbling.
3699 20 Sep 2016 @ 0830 20 Sep 2016 @ 1830 ThomasR No Artemisia eruption! Pool was in good overflow all the time. The only thing we saw was a bison, a coyote and Atomizer.
3688 19 Sep 2016 @ 0920 --- ThomasR Likely had an eruption overnight before 0130 A. Was in good overflow at 0920.
3676 16 Sep 2016 @ 0945 --- ThomasR Likely had an eruption overnight around 0200 A. Was in decent overflow at 0945.
3662 14 Sep 2016 @ 0930 --- ThomasR Likely had an eruption overnight around 0230 A. Was in early overflow at 0930.
3652 12 Sep 2016 @ 0945 --- ThomasR Likely had an eruption overnight before 0230 A. Was in good overflow at 0945.
3626 08 Sep 2016 @ 1800 --- ThomasR Probably no eruption between 0930 and 1800. Still in a good overflow.
3625 08 Sep 2016 @ 0930 --- ThomasR Likely had an eruption overnight around 0230 A. Was in a decent overflow at 0930.
3620 07 Sep 2016 @ 1840 --- ThomasR Probably no eruption between 0915 and 1840. Still in a good overflow.
3618 07 Sep 2016 @ 0915 --- ThomasR Likely had an eruption overnight before 0115 A. Was in good overflow at 0915.
3617 06 Sep 2016 @ 1800 --- ThomasR No eruption between 1130 and 1800. Still in a good overflow.
3619 06 Sep 2016 @ 1130 --- ThomasR Likely had an eruption overnight before 0330 A. Was in good overflow at 1130.
3432 06 Aug 2016 @ 0916 --- EmilyW Post eruptive
3336 21 Jul 2016 @ 1010 --- Devin C. Pool is full and overflowing.
3134 25 Jun 2016 @ 0600 --- LynnS Artemisia was a few inches below overflow when I arrived at 0600; estimated eruption midnight to 3 am for 34-36 hour interval.
3098 20 Jun 2016 @ 0741 --- B**2 Pool about 1 foot below overflow.
3057 12 Jun 2016 @ 0910 12 Jun 2016 @ 0916 RLJones Pool in light overflow. water in runoff for entire length of both channels. no boils over vents.
3041 10 Jun 2016 @ 1041 10 Jun 2016 @ 1700 JSJ Artemisia Geyser in overflow from late morning to late afternoon. No eruption yet.
2391 20 Sep 2015 @ 1341 --- udo Post eruptive low pool. Still actively running off.
2346 14 Sep 2015 @ 1700 14 Sep 2015 @ 1721 Jake pull full, but not pushing
2256 04 Sep 2015 @ 1020 04 Sep 2015 @ 1101 RLJones Pool in overflow entire time.
2071 09 Aug 2015 @ 1006 --- RLJones Pool full & in overflow. Pool calm.
1598 16 May 2015 @ 1208 16 May 2015 @ 1906 JSJ Watched Artemisia's pool after its 1141 to 1208 eruption. By 1906, the platform was partially flooded, but no overflow into runoff channels yet.
1549 01 May 2015 @ 1527 --- RLJones Pool appr. 4ft below overflow.
1432 04 Oct 2014 @ 1452 --- WillBoekel full and overflowing at 1452
1234 14 Sep 2014 @ 0800 --- WillBoekel full and overflowing at 0800
1121 02 Aug 2014 @ 0727 --- c.barwin Artemisia was observed to be approximately 5-6 ft below the crater rim at 0727.
425 09 Sep 2012 @ 0715 --- Graham Low pool at 0715
422 03 Sep 2012 @ 1200 --- WillBoekel Was called some time around 1200 but missed the exact time called over the radio
343 27 Jun 2012 @ 1015 27 Jun 2012 @ 1315 WillBoekel \"The pool was full and\r\noverflowing from 1015-1315 today.\"
285 14 Jun 2012 @ 0900 --- colopho Erupted early am. Pool was low at 900 am\r\n
36 18 Sep 2011 @ 1712 --- Jake well below overflow @ 1712, erupted @ 1500?
1 15 Jul 2011 @ 1645 --- Jake pool very low @ 1645
1246 17 Jun 2007 @ 1011 17 Jun 2007 @ 1911 BoekelUpload 1x:11
6250 10 Sep 1992 @ 1130 --- DGInc pool down 9"; before one of these 2 sightings D.L.
6249 10 Sep 1992 @ 0610 --- DGInc pool 1.5' to 2' down; evidently there was a minor eruption
530 27 Apr 1977 @ 1500 --- BoekelUpload just full at 1500 (erupted ~1100?
EntrySourceLinkComment
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.


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