Last Known Eruption
2d 4h 25m ago

Latest Eruptions

Eruption DurationInterval
16 Sep 2021 @ 0704 ie5d 11h 8m
10 Sep 2021 @ 1956 ie3d 13h 2m
07 Sep 2021 @ 0654 ie wc3d 21h 59m
03 Sep 2021 @ 0855 ie16h 10m
02 Sep 2021 @ 1645 ie1d 21h 35m
31 Aug 2021 @ 1910 ie wc1d 4h 14m
30 Aug 2021 @ 14565m 6h 44m
30 Aug 2021 @ 0812 ie wc13h 2m
29 Aug 2021 @ 1909:53 wc5m 38s 23h 47m
28 Aug 2021 @ 1922<5m 1d 4h 14m
27 Aug 2021 @ 15086m 3d 22h 16m
23 Aug 2021 @ 165230s 8m
23 Aug 2021 @ 1644<1m 2h 24m
23 Aug 2021 @ 1420 ie1d 22h 39m
21 Aug 2021 @ 1541 ns4d 20h 56m
16 Aug 2021 @ 1845 wc6d 9h 10m
10 Aug 2021 @ 0935 ie2d 18h 28m
07 Aug 2021 @ 15071h 29m
07 Aug 2021 @ 1338 ns wc3d 6h 40m
04 Aug 2021 @ 0658 ie wc10h 18m
03 Aug 2021 @ 20402d 6h 22m
01 Aug 2021 @ 14183m 41s 1d 4h 5m
31 Jul 2021 @ 1013 ns1h 13m
31 Jul 2021 @ 0900 ie13h 2m
30 Jul 2021 @ 1957:3021h 14m
29 Jul 2021 @ 2243 ie1d 13h 38m
28 Jul 2021 @ 0905 ie2d 1h 54m
26 Jul 2021 @ 0711 ie1d 22h 38m
24 Jul 2021 @ 08331h 6m
24 Jul 2021 @ 0727 ie21h 17m
23 Jul 2021 @ 1010 ie19h 32m
22 Jul 2021 @ 1438<30s 25m
22 Jul 2021 @ 14134.5m 1d 45m
21 Jul 2021 @ 1328 ie22h 44m
20 Jul 2021 @ 14448m
20 Jul 2021 @ 14361h 31m
20 Jul 2021 @ 13052h 28m
20 Jul 2021 @ 10372h 23m
20 Jul 2021 @ 08141h 17m
20 Jul 2021 @ 06571h 5m
20 Jul 2021 @ 0552brief19h 44m
19 Jul 2021 @ 1008 ie1h 34m
19 Jul 2021 @ 083422h 6m
18 Jul 2021 @ 102817h 38m
17 Jul 2021 @ 165028m
17 Jul 2021 @ 1622 ie20h 39m
16 Jul 2021 @ 1943 ie wc1h 0m
16 Jul 2021 @ 1842:57 wc4m 45s 33m
16 Jul 2021 @ 18092h 24m
16 Jul 2021 @ 15457h 2m
16 Jul 2021 @ 084330m
16 Jul 2021 @ 081317h 9m
15 Jul 2021 @ 15045m 34m
15 Jul 2021 @ 14306m 7h 42m
15 Jul 2021 @ 064834m
15 Jul 2021 @ 06149h 43m
14 Jul 2021 @ 20311h 15m
14 Jul 2021 @ 1916 ie wc7h 45m
14 Jul 2021 @ 11315m 22h 58m
13 Jul 2021 @ 12333m 20m
13 Jul 2021 @ 12131m 1h 3m
13 Jul 2021 @ 11101m 2h 30m
13 Jul 2021 @ 0840Very brief.11h 38m
12 Jul 2021 @ 2101:11 wc>3m 56s 22m 12s
12 Jul 2021 @ 2038:59 wc1m 51s 28m 13s
12 Jul 2021 @ 2010:46 wc1m 20s 10m 44s
12 Jul 2021 @ 2000:02 wc1m 31s 2m 51s
12 Jul 2021 @ 1957:11 wc25s 7m 20s
12 Jul 2021 @ 1949:51 wc51s 4m 10s
12 Jul 2021 @ 1945:41 wc35s 3m 6s
12 Jul 2021 @ 1942:35 wc19s 12m 31s
12 Jul 2021 @ 1930:04 wc33s 10m 26s
12 Jul 2021 @ 1919:38 wc39s 13m 5s
12 Jul 2021 @ 1906:33 wc42s 46m 15s
12 Jul 2021 @ 1820:18 wc2m 46s 24m 40s
12 Jul 2021 @ 1755:38 wc4m 6s 23m 2s
12 Jul 2021 @ 1732:36 wc1h 27m
12 Jul 2021 @ 160548m
12 Jul 2021 @ 15171h 14m
12 Jul 2021 @ 14031h 20m
12 Jul 2021 @ 1242:34 wc4m 31s 5h 7m
12 Jul 2021 @ 073519h 38m
11 Jul 2021 @ 11575m 2h 19m
11 Jul 2021 @ 093810m 1h 35m
11 Jul 2021 @ 080320h 23m
10 Jul 2021 @ 11406m 2h 34m
10 Jul 2021 @ 090653m
10 Jul 2021 @ 0813 ie1d 12h 21m
08 Jul 2021 @ 19522h 51m
08 Jul 2021 @ 1701 ie wc9h 27m
08 Jul 2021 @ 07345m 32s 34m
08 Jul 2021 @ 0700 ie wc1h 3m
08 Jul 2021 @ 0557 ie16h 21m
07 Jul 2021 @ 1336 ie4h 48m
07 Jul 2021 @ 08481d 2h 22m
06 Jul 2021 @ 0626 ie11h 33m
05 Jul 2021 @ 1853 ie wc7h 17m
05 Jul 2021 @ 11369m 40s 1d 3h 23m
04 Jul 2021 @ 0813 ie14h 11m
03 Jul 2021 @ 1802 ie wc9h 43m

Interval Statistics

Interval Count100
Min2m
Max6d 9h 10m
Mean17h 59m
Median5h 55m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
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.