Last Known Eruption
1d 10h 30m ago

Latest Eruptions

Eruption DurationInterval
08 Dec 2024 @ 0820 ie wc2d 17m
06 Dec 2024 @ 0803 ie wc23h 58m
05 Dec 2024 @ 0805 ie wc12d 20h 54m
22 Nov 2024 @ 1111 wc13m
22 Nov 2024 @ 1058 ns wc4d 3h 36m
18 Nov 2024 @ 0722 ns wc22h 30m
17 Nov 2024 @ 0852 wc maj1d 22h 50m
15 Nov 2024 @ 1002 ns wc2h 49m
15 Nov 2024 @ 0713 ie wc1d 21h 55m
13 Nov 2024 @ 0918 ie wc17h 9m
12 Nov 2024 @ 1609 wc maj4m 3d 9m
09 Nov 2024 @ 1600 ie wc2h 23m
09 Nov 2024 @ 1337 ns wc13m
09 Nov 2024 @ 1324 ns wc1h 31m
09 Nov 2024 @ 1153 ie wc3d 22h 31m
05 Nov 2024 @ 1322 wc6d 6h 53m
30 Oct 2024 @ 0729 ie wc3d 16h 7m
26 Oct 2024 @ 1522 ns wc1h 17m
26 Oct 2024 @ 1405 wc23h 21m
25 Oct 2024 @ 1444 wc5m 7s 1h 11m
25 Oct 2024 @ 1333 ie wc1d 3h 56m
24 Oct 2024 @ 0937 wc maj4m 28m
24 Oct 2024 @ 0909 wc maj5m 51m
24 Oct 2024 @ 0818 ie wc24m
24 Oct 2024 @ 0754 ie wc22h 23m
23 Oct 2024 @ 0931 ie1d 48m
22 Oct 2024 @ 0843 ie wc4d 19h 47m
17 Oct 2024 @ 1256 ie wc18h 37m
16 Oct 2024 @ 1819 wc maj1d 4h 29m
15 Oct 2024 @ 13502d 1h 57m
13 Oct 2024 @ 1153 ie1d 20h 43m
11 Oct 2024 @ 1510 ie3h 22m
11 Oct 2024 @ 11482d 21h 15m
08 Oct 2024 @ 1433 ie19h 30m
07 Oct 2024 @ 1903 ie wc1h 23m
07 Oct 2024 @ 1740 wc7h 53m
07 Oct 2024 @ 0947 ns maj2d 16h 38m
04 Oct 2024 @ 1709 wc maj4m 37m
04 Oct 2024 @ 1632 maj5m 1d 9h 24m
03 Oct 2024 @ 0708 min1d 11h 35m
01 Oct 2024 @ 193325m
01 Oct 2024 @ 1908 ie9h 25m
01 Oct 2024 @ 0943 wc maj6m 15h 46m
30 Sep 2024 @ 1757 ns2d 2h 42m
28 Sep 2024 @ 1515 ns wc1d 1h 25m
27 Sep 2024 @ 1350 ns wc1h 13m
27 Sep 2024 @ 1237 ns wc1d 18h 28m
25 Sep 2024 @ 1809 ie26m
25 Sep 2024 @ 1743 ie wc10m
25 Sep 2024 @ 1733 ie8h 13m
25 Sep 2024 @ 092016h 27m
24 Sep 2024 @ 1653 ie1d 4h 1m
23 Sep 2024 @ 1252 ns2d 41m
21 Sep 2024 @ 1211 ie wc maj19h 45m
20 Sep 2024 @ 1626 ie wc1d 7h 47m
19 Sep 2024 @ 0839 maj5m 1d 19h 36m
17 Sep 2024 @ 1303 min16m
17 Sep 2024 @ 1247 min11m
17 Sep 2024 @ 1236 min3m
17 Sep 2024 @ 1233 min9m
17 Sep 2024 @ 1224 min10m
17 Sep 2024 @ 1214 min11m
17 Sep 2024 @ 1203 min7m
17 Sep 2024 @ 1156 min9m
17 Sep 2024 @ 1147 min8m
17 Sep 2024 @ 1139 min6m
17 Sep 2024 @ 1133 min10m
17 Sep 2024 @ 1123 min6m
17 Sep 2024 @ 1117 min10m
17 Sep 2024 @ 1107 min5m
17 Sep 2024 @ 1102 min8m
17 Sep 2024 @ 1054 ns min1d 16h 27m
15 Sep 2024 @ 1827 wc maj4m 1h 31m
15 Sep 2024 @ 1656 ie wc41m
15 Sep 2024 @ 1615 ie wc2h 51m
15 Sep 2024 @ 132438m
15 Sep 2024 @ 12463m 6m
15 Sep 2024 @ 1240 min19m
15 Sep 2024 @ 12211h 7m
15 Sep 2024 @ 1114 maj5m 1d 2h 15m
14 Sep 2024 @ 0859 ie maj18h 6m
13 Sep 2024 @ 1453 ie maj22h 37m
12 Sep 2024 @ 1616 ie maj21h 17m
11 Sep 2024 @ 1859 wc4m 16s 30m
11 Sep 2024 @ 1829 wc4m 58s 39m
11 Sep 2024 @ 1750 wc2½m15m
11 Sep 2024 @ 1735 wc50s 6m
11 Sep 2024 @ 1729 wc27s 1h 26m
11 Sep 2024 @ 1603 maj1h 40m
11 Sep 2024 @ 1423 wc min2m 10m
11 Sep 2024 @ 1413 wc min1m 9m
11 Sep 2024 @ 1404 wc min1m 8m
11 Sep 2024 @ 1356 wc min2m 4h 37m
11 Sep 2024 @ 0919 ie wc1h 45m
11 Sep 2024 @ 07343d 12h 37m
07 Sep 2024 @ 1857 wc1h 9m
07 Sep 2024 @ 1748 wc maj5m 1h 44m
07 Sep 2024 @ 1604 wc1d 2h 18m
06 Sep 2024 @ 1346 maj6m 1h 30m
06 Sep 2024 @ 1216 ns1d 53m

Interval Statistics

Interval Count100
Min3m
Max12d 20h 54m
Mean22h 32m
Median2h 50m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
36201 01 Aug 2024 @ 0837 --- mhreed Low pool splashing
35326 19 Jun 2024 @ 0926 --- Forestbewithyou Failed eruption
35325 19 Jun 2024 @ 0922 --- Forestbewithyou I forgot to note down the exact time that it had a fail but it was around this time.
35324 19 Jun 2024 @ 0915 --- Forestbewithyou Attempted an eruption but was not successful
35275 17 Jun 2024 @ 0827 --- Forestbewithyou Attempted to erupt. Had several decent splashes but never filled its vent with water
35234 15 Jun 2024 @ 1613 --- Joe   finished
34905 05 Jun 2024 @ 1036 --- SantaFe108 Low splashing within vent.
26613 23 Jun 2023 @ 0951 --- Forestbewithyou Failed eruption. Filled splashed a bit then drained after 20sec
24816 01 Jan 2023 @ 1345 --- mhreed Low pool bursting. Fun noises that would be easier to hear if Slurp used its inside voice.
21307 16 May 2022 @ 1032 --- Brando gurgling deep within
21151 02 May 2022 @ 0948 --- aferrara Weak splashing, rarely higher than vent rim
20628 23 Dec 2021 @ 1303 --- mhvogel Old Tardy stopped a few seconds after adding eruption.
18397 12 Jul 2021 @ 1914 12 Jul 2021 @ 1917 JarnoO (wc) Steamy 1914:17 - 1914:35. 1916:53 - 1917:16 erupted water to very low height.
17889 18 Jun 2021 @ 1743 --- Craigmon99 Someone has thrown a chunk of boardwalk in Old Tardy C. Rangers said they will deal with it tomorrow as there are too many bison.
17531 07 Jun 2021 @ 0740 07 Jun 2021 @ 1640 Graham No eruption seen during this period. I was watching from Tilts Baby so may have missed one.
13998 02 Nov 2019 @ 1657 --- steve Euupting deep in the vent with occasional droplets making it to the surface.
13116 08 Aug 2019 @ 1317 08 Aug 2019 @ 1703 JSJ Closed intervals.
13113 08 Aug 2019 @ 1317 08 Aug 2019 @ 1329 JSJ Inclinometer reading: highest water about 20 vertical feet (but highest spouts were angled).
13102 07 Aug 2019 @ 1252 07 Aug 2019 @ 1614 JSJ Closed intervals (1252 eruption to 1438A eruption to 1614 eruption).
11580 04 Jun 2019 @ 1141 04 Jun 2019 @ 1808 JSJ All posted Old Tardy eruptions are closed intervals.
5779 04 Sep 2017 @ 1628 --- Janet Jones Heard a gurgle at depth. Crystal Spring had overflowed enough to flow into it and might have been part of that gurgle.
3202 22 Jun 2016 @ 1503 --- David Water seen draining in to crater, and water in drainage from 14:59 eruption. See photo: https://www.flickr.com/photos/ujelang/27979999542/in/photolist-JCuP4d-HRiX6u-hhGHcZ
2148 14 Aug 2015 @ 1215 --- JSJ Old Tardy Geyser & Old Tardy C Geyser were both spitting at 1215.
1591 15 May 2015 @ 1051 15 May 2015 @ 1652 JSJ No eruptions from 1051 to 1652.
749 23 Jan 2013 @ 0000 23 Jan 2013 @ 2359 Graham Note that GeyserTimes has associated multiple eruption times incorectly, they were all different eruptons.
12711 06 Aug 1994 @ 0000 06 Aug 1994 @ 2359 JarnoO a string of times and durations entered; too faint to read in Xerox copy
440 17 Jul 1975 @ 1930 --- BoekelUpload between 1930-2015
EntrySourceLinkComment
06 Aug 2020 @ 1735 JSJ https://www.youtube.com/watch?v=XaQC2lQxZNg#t=3m28s Clips 7-9 of this video compilation (= time stamp 3:28 to the end) show Old Tardy Geyser's 5:35 to 5:42 PM eruption on 6 August 2020.
04 Aug 2020 @ 1709 JSJ https://www.youtube.com/watch?v=XaQC2lQxZNg Clips 1-6 of this video compilation (= beginning to time stamp 3:27) show Old Tardy Geyser's 5:09 to 5:20 PM eruption on 4 August 2020.
04 Aug 2020 @ 1709 JSJ https://www.flickr.com/photos/jsjgeology/50200898197 Photo (out of 8) of Old Tardy Geyser's 5:09 to 5:20 PM eruption on 4 August 2020.
04 Jun 2019 @ 1436 JSJ https://www.youtube.com/watch?v=GUelIDygZKQ#t=1m27s Clips 6-12 of this video compilation (= time stamp 1:27 to the end) show Old Tardy Geyser's 2:36 to 2:45 PM eruption on 4 June 2019.
04 Jun 2019 @ 1331 JSJ https://www.youtube.com/watch?v=GUelIDygZKQ Clips 1-5 of this video compilation (= beginning to time stamp 1:26) show Old Tardy Geyser's 1:31 to 1:37 PM eruption on 4 June 2019.
01 Jun 2013 @ 1155 JSJ https://www.flickr.com/photos/jsjgeology/13787235753 Photo (1 of 7) of Old Tardy Geyser's 11:55 to 11:56 AM eruption on 1 June 2013.
02 Jun 2013 @ 1111 JSJ https://www.flickr.com/photos/jsjgeology/13787183985 Video clip of Old Tardy Geyser's 11:11 to 11:14 AM on 2 June 2013.
02 Jun 2013 @ 1111 JSJ https://www.flickr.com/photos/jsjgeology/13787186185 Photo (1 of many, plus video clips) of Old Tardy Geyser's 11:11 to 11:14 AM eruption on 2 June 2013.
09 Jul 2011 @ 1759 kcmule http://tinyurl.com/3o4j3vt
26 Jun 2011 @ 2012 kcmule http://tinyurl.com/63xxg53
Baseline does not exist.