Last Known Eruption
1h 11m ago

Latest Eruptions

EruptionDurationInterval
24 Nov 2017 @ 1607 wc1h 30m
24 Nov 2017 @ 1437 wc ini11h 44m
24 Nov 2017 @ 0253 wc1h 2m
24 Nov 2017 @ 0151 wc1h 17m
24 Nov 2017 @ 0034 wc10h 59m
23 Nov 2017 @ 1335 wc1h 7m
23 Nov 2017 @ 1228 wc49m
23 Nov 2017 @ 1139 wc1h 3m
23 Nov 2017 @ 1036 wc1h 9m
23 Nov 2017 @ 0927 wc1h 9m
23 Nov 2017 @ 0818 ie wc ini11h 17m
22 Nov 2017 @ 2101 wc1h 13m
22 Nov 2017 @ 1948 wc1h 6m
22 Nov 2017 @ 1842 wc59m
22 Nov 2017 @ 1743 wc1h 18m
22 Nov 2017 @ 1625 wc ini11h 0m
22 Nov 2017 @ 0525 wc1h 9m
22 Nov 2017 @ 0416 wc1h 7m
22 Nov 2017 @ 0309 wc1h 42m
22 Nov 2017 @ 0127 wc8h 30m
21 Nov 2017 @ 1657 wc1h 10m
21 Nov 2017 @ 1547 wc1h 22m
21 Nov 2017 @ 1425 wc ini7h 48m
21 Nov 2017 @ 0637 wc min1h 47m
21 Nov 2017 @ 0450 wc1h 23m
21 Nov 2017 @ 0327 wc ini9h 44m
20 Nov 2017 @ 1743 wc12m
20 Nov 2017 @ 1731 wc min1h 14m
20 Nov 2017 @ 1617 wc3m 1h 13m
20 Nov 2017 @ 1504 wc ini8h 1m
20 Nov 2017 @ 0703 wc1h 10m
20 Nov 2017 @ 0553 wc1h 15m
20 Nov 2017 @ 0438 wc ini9h 0m
19 Nov 2017 @ 1938 wc min2h 7m
19 Nov 2017 @ 1731 wc1h 4m
19 Nov 2017 @ 1627 wc1h 17m
19 Nov 2017 @ 1510 wc ini18h 48m
18 Nov 2017 @ 2022 ie wc1h 16m
18 Nov 2017 @ 1906 wc maj24m
18 Nov 2017 @ 1842 wc min1h 9m
18 Nov 2017 @ 1733 wc1h 18m
18 Nov 2017 @ 1615 wc ini12h 9m
18 Nov 2017 @ 0406 wc1h 17m
18 Nov 2017 @ 0249 wc ini14h 50m
17 Nov 2017 @ 1159 wc1h 16m
17 Nov 2017 @ 1043 wc1h 17m
17 Nov 2017 @ 0926 wc ini10h 35m
16 Nov 2017 @ 2251 wc ini4h 52m
16 Nov 2017 @ 1759 wc min1h 7m
16 Nov 2017 @ 1652 wc1h 14m
16 Nov 2017 @ 1538 wc1h 25m
16 Nov 2017 @ 1413 wc ini6h 56m
16 Nov 2017 @ 0717 wc min1h 17m
16 Nov 2017 @ 0600 wc20m
16 Nov 2017 @ 0540 wc min±½m1h 12m
16 Nov 2017 @ 0428 wc1h 24m
16 Nov 2017 @ 0304 wc ini7h 12m
15 Nov 2017 @ 1952 wc1h 16m
15 Nov 2017 @ 1836 wc ini7h 25m
15 Nov 2017 @ 1111 ns wc1h 15m
15 Nov 2017 @ 0956 wc ini11h 59m
14 Nov 2017 @ 2157 wc1h 14m
14 Nov 2017 @ 2043 wc1h 4m
14 Nov 2017 @ 1939 A wc1h 5m
14 Nov 2017 @ 1834 wc1h 6m
14 Nov 2017 @ 1728 wc1h 8m
14 Nov 2017 @ 1620 wc1h 19m
14 Nov 2017 @ 1501 wc ini9h 2m
14 Nov 2017 @ 0559 wc ini7h 46m
13 Nov 2017 @ 2213 wc1h 7m
13 Nov 2017 @ 2106 wc1h 19m
13 Nov 2017 @ 1947 wc ini15h 41m
13 Nov 2017 @ 0406 wc1h 14m
13 Nov 2017 @ 0252 wc1h 13m
13 Nov 2017 @ 0139 wc58m
13 Nov 2017 @ 0041 wc1h 4m
12 Nov 2017 @ 2337 wc1h 21m
12 Nov 2017 @ 2216 wc ini11h 8m
12 Nov 2017 @ 1108 wc2h 48m
12 Nov 2017 @ 0820 wc ini12h 42m
11 Nov 2017 @ 1938 wc1h 7m
11 Nov 2017 @ 1831 wc1h 30m
11 Nov 2017 @ 1701 wc ini9h 53m
11 Nov 2017 @ 0708 wc min1h 12m
11 Nov 2017 @ 0556 wc1h 8m
11 Nov 2017 @ 0448 wc1h 9m
11 Nov 2017 @ 0339 wc1h 31m
11 Nov 2017 @ 0208 wc1h 22m
11 Nov 2017 @ 0046 wc ini12h 1m
10 Nov 2017 @ 1245 wc1h 20m
10 Nov 2017 @ 1125 wc ini8h 41m
10 Nov 2017 @ 0244 wc16m
10 Nov 2017 @ 0228 wc min16m
10 Nov 2017 @ 0212 wc min1h 8m
10 Nov 2017 @ 0104 wc1h 17m
09 Nov 2017 @ 2347 wc ini6h 49m
09 Nov 2017 @ 1658 wc1h 12m
09 Nov 2017 @ 1546 ie wc ini10h 5m
09 Nov 2017 @ 0541 wc1h 8m
09 Nov 2017 @ 0433 wc18m

Interval Statistics

Interval Count100
Min12m
Max18h 48m
Mean3h 43m
Median1h 17m
Initial-to-Initial
Interval Count25
Min8h 1m
Max1d 6h 19m
Mean14h 21m
Median13h 21m

Latest Notes

Note IDStart TimeEnd TimeEntrantNote
7837 22 Nov 2017 @ 0235 --- jh23487 There was a bit of steam from Lion from 0235 to 0236, possibly a minor?
7816 05 Nov 2017 @ 0415 --- DGInc Appeared to be in a post-eruptive steam phase.
6327 12 Sep 2017 @ 1604 --- Joe & Mary Not a major. Sorry.
6207 09 Sep 2017 @ 1148 09 Sep 2017 @ 1223 udo 6 roars, 3 with splashes, series ended.
5668 03 Sep 2017 @ 0955 --- udo Last reported eruption was 0608. Bubblers are drooling less than 4 hours afterwards.
5286 23 Aug 2017 @ 0449 23 Aug 2017 @ 0454 JSJ Decent drifting steam plumes, but no proper eruption column.
4500 19 Jul 2017 @ 1120 --- udo Water is flowing from both bubblers bit not bursting to any significant height yet.
4335 19 Jun 2017 @ 0818 --- DGInc Have not seen a (potential) Lion eruption on the overnight captures.
4121 23 May 2017 @ 0314 --- DGInc POSSIBLE eruption. Too dark for me to be certain, even for a questionable entry.
4122 23 May 2017 @ 0143 --- DGInc POSSIBLE initial of series. Too dark for me to be certain, even for a questionable entry.
3964 01 Apr 2017 @ 1310 --- Betty chat visitor report it is ie. Maybe the initial
3956 20 Feb 2017 @ 0351 20 Feb 2017 @ 0515 DGInc A set of minors ended the series. The larger minors have occured at the following times: 0351, 0404, 0417, 0435 and 0449. Each of these had a duration of ~30 seconds to ~1 minute.
3909 14 Jan 2017 @ 0954 --- DaveM Either Lion or Beehive at 0820
3907 09 Jan 2017 @ 0058 --- Betty Maybe erupting, but it could be Beehive as well. Lasted about 6 min, so it was possibly initial
3874 16 Nov 2016 @ 1824 16 Nov 2016 @ 1849 DGInc Might've erupted or tried to erupt. I cannot tell if it actually DID erupt, since it was quite foggy at 1824 and wasn't able to see any further than Old Faithful at 1849. Series continued till at least 2156.
3781 13 Oct 2016 @ 1409 13 Oct 2016 @ 1429 udo Roars 1409, 1414, 1416, 1417, 1419, 1423,
3741 03 Oct 2016 @ 0252 --- Betty Possible eruption behind OF steam
3681 17 Sep 2016 @ 1639 --- Graham Big splash out of Lion but not enough to call a minor. Looks like a series of 1 unless it can come back from that splash and erupt.
3600 04 Sep 2016 @ 0940 --- BobInSLC Almost erupted, strongest try without going I've seen. lasted 2 minutes.
3564 28 Aug 2016 @ 1431 --- Betty One tall burst, lasted ~20 sec
3506 18 Aug 2016 @ 1505 18 Aug 2016 @ 1513 Casey Two powerful seconds-long surges at 1505 and 1513 observed on webcam. There was debate as to whether they qualified as minor eruptions or not.
3125 23 Jun 2016 @ 1113 --- udo Roar 1113. Roarlet 1114 & 1123 & 1126 & 1128
3058 12 Jun 2016 @ 0043 --- DGInc MAY have erupted. It was suddenly in the background very steamy while OF erupted and I'm pretty sure it wasn't the steam of OF.
2960 03 Jun 2016 @ 1516 03 Jun 2016 @ 1628 JSJ Noticed Lion spits at 1516, 1525, 1530, 1542, 1543, 1605, and 1628.
2877 22 May 2016 @ 0321 --- DaveM Lion erupted. I hope there is a reliable observer around somewhere.
2874 22 May 2016 @ 0150 --- DaveM Lion erupted. But since "eyes in the basin are most often more reliable than eyes through the webcam" I hope someone in the basin saw the eruption.
2872 22 May 2016 @ 0032 --- DaveM Lion had an initial eruption. But since "eyes in the basin are most often more reliable than eyes through the webcam" I hope someone in the basin saw the eruption.
2764 20 Apr 2016 @ 1213 --- udo 1st roar 1213, 2nd 1217, 3rd 1219, 4th 1222, burp 1228, weak 1233. DNE
2744 16 Apr 2016 @ 1840 --- User34 New "drinking fountain" vent a couple feet to the right and in front of the old one
2722 09 Apr 2016 @ 1058 09 Apr 2016 @ 1059 JSJ Low, brief spouting at 1058 and 1059.
2718 26 Mar 2016 @ 2017 --- Graham Still no Lion since this morning.
2709 12 Mar 2016 @ 1307 12 Mar 2016 @ 1322 JSJ Several seconds of moderately low spouting at 1307 (webcam observation). Also a couple seconds of low spouting at near-latest 1319. Spitting at late 1321 and early 1322.
2669 06 Feb 2016 @ 1259 06 Feb 2016 @ 1300 JSJ Brief, moderately low spouting from 1259 to early 1300.
2653 17 Jan 2016 @ 1529 17 Jan 2016 @ 1541 JSJ Eruption # 2 in Lion Geyser's series very likely occurred while webcam was focused on Grand Geyser's 1529 to 1541 eruption.
2649 17 Jan 2016 @ 0745 --- Graham Doing terminal roars, no more eruptions in series.
2644 15 Jan 2016 @ 1700 15 Jan 2016 @ 1715 JSJ Brief eruptive spouting from late 1700 to early 1701 & at 1714.
2424 26 Sep 2015 @ 1327 --- JSJ ~1 to 2 seconds of moderately low spouting at 1327 (webcam observation).
2286 07 Sep 2015 @ 1146 --- BobInSLC Lion minors at 11:46 and 11:48
2146 15 Aug 2015 @ 1123 15 Aug 2015 @ 1124 JSJ Occasional spitting at 1123 to 1124.
2066 09 Aug 2015 @ 0600 --- Jake splashing above cone. working towards initial
2039 07 Aug 2015 @ 0550 --- RyanMaurer huffing and puffing but no eruption. must have ended a series.
1847 06 Jul 2015 @ 2004 --- BobInSLC big sustained splash, almost erupted
731 12 Jan 2013 @ 0755 --- Graham Probably a Lion eruption at 0755ie based on stean clouds but not sure. Matches up with the 0905 time reported later.
715 14 Nov 2012 @ 1214 --- Pat Snyder 1214 Lion is an initial.
688 30 Oct 2012 @ 1417 --- BB I believe the 1417 Lion was a minor. Just visible in one frame.
505 22 Sep 2012 @ 2150 22 Sep 2012 @ 2215 Jake series end. Failed roars 2150 - 2215. I left. N Goggles continued regular fill/drop cycle.
393 30 Aug 2012 @ 1314 30 Aug 2012 @ 1317 vw Lion had a fairly short eruption at 1314 ns, followed by a minor at 1317. Appeared to be two distinct eruptions on the stream.\r\n
309 19 Jun 2012 @ 0000 19 Jun 2012 @ 2359 AndrewW Lion is and sjould be marked as an initial.
282 08 Jun 2012 @ 2124 --- BB It looked like Lion started another series right before dark. Not 100% sure but it looked like it started around 2124, heavy steam in about three or four captures before it got too dark to see anything
232 15 May 2012 @ 1711 --- WillBoekel Roar 17:11
233 15 May 2012 @ 1711 --- WillBoekel Roar 17:11wc
223 09 May 2012 @ 1641 --- WillBoekel 1641WC roar
222 09 May 2012 @ 1636 --- WillBoekel 1636 Roar
194 29 Apr 2012 @ 1120 --- WillBoekel roar 1120
151 02 Apr 2012 @ 0705 02 Apr 2012 @ 0715 AndrewW Some said they saw lion between 705 and 715. Well see
146 26 Mar 2012 @ 0000 26 Mar 2012 @ 2359 Graham Could not see Lion for a couple of hours so it probably erupted more.
107 16 Feb 2012 @ 0000 16 Feb 2012 @ 2359 AndrewW I\\\'d like to mention lion\\\'s interval because this one is exceptionally long even for series. Either its erupting at night or just a long interval. I guess we\\\'ll wait a long time before we use the d word though.
76 05 Jan 2012 @ 0228 --- BB There was something erupting at 0228. I was thinking Lion, in the chatroom there was a feeling it might have been BH, based on the interval from the last Lion eruption on 01/04.\r\n\r\nI finally compared captures, and I still feel it was rather Lion than BH. The location was too far right for BH.\r\n\r\nUnfortunately it was too dark later, so I don\'t know if there was another eruption later on.
728 26 Nov 2011 @ 1224 --- WillBoekel Electronic logger failed at 12:24
59 14 Oct 2011 @ 0217 14 Oct 2011 @ 0309 BB I have three nighttime eruptions in my captures that are hard to tell apart. After comparing them to daytime captures I think that BH probably erupted at 0217 and Lion at 0134 and 0309. These are all ie times as I only capture one frame every 30 seconds.
28 14 Sep 2011 @ 0320 --- BB One capture with heavy steam from Lion at 3:20... maybe a minor?
974 23 Jun 2008 @ 1100 23 Jun 2008 @ 1159 BoekelUpload 11:xx
962 24 May 2008 @ 1540 24 May 2008 @ 1549 BoekelUpload 15:4x
957 02 May 2008 @ 1010 02 May 2008 @ 1019 BoekelUpload 10:1x
1354 13 Jun 2007 @ 1240 13 Jun 2007 @ 1249 BoekelUpload 12:4x
6857 26 Sep 1992 @ 1620 26 Sep 1992 @ 1629 DGInc 16:2x
5563 14 Aug 1992 @ 2030 14 Aug 1992 @ 2039 DGInc 20:3x ie ?
5462 18 Jul 1992 @ 1205 --- DGInc roars
5453 13 Jul 1992 @ 2200 13 Jul 1992 @ 2209 DGInc 22:0x
5419 06 Jul 1992 @ 2210 06 Jul 1992 @ 2219 DGInc 22:1x
5278 26 May 1992 @ 1108 --- DGInc roar, no eruption
5039 26 Feb 1992 @ 1520 --- DGInc roar only
534 03 May 1977 @ 0857 --- BoekelUpload 0857 puffed
484 28 Oct 1975 @ 0000 28 Oct 1975 @ 1200 BoekelUpload active am
EntrySourceLinkComment
16 Aug 2015 @ 1110 JSJ https://www.flickr.com/photos/jsjgeology/21658915002 Photo (1 of 6) of Lion Geyser's 11:10 to 11:14 AM eruption on 16 August 2015.
16 Aug 2015 @ 0944 JSJ https://www.flickr.com/photos/jsjgeology/21679511491 Photo (1 of 2) of Lion Geyser's 9:44 AM-onward eruption on 16 August 2015.
15 Aug 2015 @ 1245 JSJ https://www.flickr.com/photos/jsjgeology/21316237110 Photo of Lion Geyser's 12:45 PM-onward eruption on 15 August 2015.
10 Aug 2015 @ 1736 JSJ https://www.flickr.com/photos/jsjgeology/21316396318 Photo of Lion Geyser's 5:36 to 5:41 PM eruption on 10 August 2015.
09 Aug 2015 @ 1422 JSJ https://www.flickr.com/photos/jsjgeology/21477913196 Photo (1 of 5) of Lion Geyser's 2:22 to 2:26 PM eruption on 9 August 2015.
09 Aug 2015 @ 1318 JSJ https://www.flickr.com/photos/jsjgeology/21316186678 Photo (1 of 3) of Lion Geyser's 1:18 to 1:22 PM eruption on 9 August 2015.
09 Aug 2015 @ 1300 JSJ https://www.flickr.com/photos/jsjgeology/20881167754 Photo (1 of 13) of Lion Geyser's 1:00 to 1:01 PM eruption on 9 August 2015.
09 Aug 2015 @ 1142 JSJ https://www.flickr.com/photos/jsjgeology/21512230241 Photo (1 of 8) of Lion Geyser's 11:42 to 11:46 AM eruption on 9 August 2015.
09 Aug 2015 @ 1035 JSJ https://www.flickr.com/photos/jsjgeology/21315549938 Photo (1 of 4) of Lion Geyser's 10:35 to 10:38 AM eruption on 9 August 2015.
03 Jun 2014 @ 1223 JSJ https://www.flickr.com/photos/jsjgeology/15097998831 Photo of Lion Geyser's 12:24 to 12:27 PM eruption on 3 June 2014.
01 Jul 2016 @ 1053 Biddle https://imgur.com/gallery/BzVsLOK/new Beginning of erpution
10 Apr 2016 @ 1450 JSJ https://www.youtube.com/watch?v=VttoHRno1mk Video (via webcam) of Lion Geyser's initial eruption from 2:50 to 2:56 PM on 10 April 2016.
01 Apr 2016 @ 1120 JSJ https://www.flickr.com/photos/jsjgeology/25900442600 Webcam screen capture photo (1 of 3) of Lion Geyser's 11:20 to 11:24 AM eruption on 1 April 2016.
31 Jan 2016 @ 1211 JSJ https://www.flickr.com/photos/jsjgeology/24108596953 Webcam screen capture photo (1 of 3) of the Lion Geyser-Old Faithful Geyser dual eruption from 12:11 to 12:15 PM on 31 January 2016.
24 Dec 2015 @ 1311 JSJ https://www.flickr.com/photos/jsjgeology/23924093756 Webcam screen capture photos (1 or 3) of Lion Geyser's 1:11 to 1:15 PM eruption on 24 December 2015.
08 Nov 2015 @ 1339 JSJ https://www.flickr.com/photos/jsjgeology/22462290807/in/photostream/ Webcam screen capture photo of Lion Geyser's 1:39 to 1:43 PM eruption on 8 November 2015.
09 May 2015 @ 1141 DaveM https://www.youtube.com/watch?v=zHeEI0QqiJA Capture showing the Lion did nto erupt at 1141. Note capture continues until Castle which started at 1210.
12 Mar 2014 @ 0343 lt http://imgur.com/1QfYneu screencap of static image
18 Dec 2013 @ 1154 Richlg96 http://youtu.be/wKIUPHHEGW0 Lion 1154 2013/12/18
07 Sep 2013 @ 1415 Richlg96 http://youtu.be/IzwV2p0HZh8
BaselineDistance (ft)Description
South side 100North edge of the walk near Heart Spring
North side 100North edge of the walk near North Goggles Geyser


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