Last Known Eruption
88d 15h 57m ago

Latest Eruptions

Eruption DurationInterval
08 Jul 2022 @ 1518 ie1d 23h 44m
06 Jul 2022 @ 1534 ie2h 41m
06 Jul 2022 @ 12531d 5h 11m
05 Jul 2022 @ 0742 ie wc12h 22m
04 Jul 2022 @ 1920 ns2d 13h 26m
02 Jul 2022 @ 05544m 13h 59m
01 Jul 2022 @ 1555~7.5m 7h 16m
01 Jul 2022 @ 0839 ie wc1d 2h 3m
30 Jun 2022 @ 0636 ie wc16h 14m
29 Jun 2022 @ 1422 ie16h 55m
28 Jun 2022 @ 2127 ie13h 12m
28 Jun 2022 @ 08151d 1h 45m
27 Jun 2022 @ 0630 ie wc1d 11h 0m
25 Jun 2022 @ 1930 ns4h 14m
25 Jun 2022 @ 15161h 53m
25 Jun 2022 @ 132316h 18m
24 Jun 2022 @ 21052d 2h 29m
22 Jun 2022 @ 1836~1m 2d 10h 31m
20 Jun 2022 @ 0805 ie wc18h 31m
19 Jun 2022 @ 1334 ie wc41m
19 Jun 2022 @ 1253 ie wc2d 5h 58m
17 Jun 2022 @ 0655 ie wc1d 10h 53m
15 Jun 2022 @ 2002 ns1d 47m
14 Jun 2022 @ 1915 ie wc1d 7h 31m
13 Jun 2022 @ 1144 ie3h 21m
13 Jun 2022 @ 0823 ns wc38m
13 Jun 2022 @ 0745 ie wc2d 21m
11 Jun 2022 @ 0724 ie wc21h 27m
10 Jun 2022 @ 0957 ie3h 1m
10 Jun 2022 @ 0656 ie wc1d 16h 17m
08 Jun 2022 @ 143947m
08 Jun 2022 @ 1352 ie1d 5h 31m
07 Jun 2022 @ 0821 ie wc18h 46m
06 Jun 2022 @ 133542m
06 Jun 2022 @ 1253<1m 22h 14m
05 Jun 2022 @ 1439 ie1h 6m
05 Jun 2022 @ 13335m 45m
05 Jun 2022 @ 12482m 15h 41m
04 Jun 2022 @ 2107 ns6h 23m
04 Jun 2022 @ 1444 ie18h 55m
03 Jun 2022 @ 1949 ie wc8h 59m
03 Jun 2022 @ 1050 ie4h 15m
03 Jun 2022 @ 0635 ie wc4d 15h 22m
29 May 2022 @ 1513 ie wc39m
29 May 2022 @ 14345m 2h 58m
29 May 2022 @ 1136 ie2h 57m
29 May 2022 @ 0839 ie18h 31m
28 May 2022 @ 14081m 2d 14h 39m
25 May 2022 @ 232939m
25 May 2022 @ 2250 ns1h 9m
25 May 2022 @ 2141 ns44m
25 May 2022 @ 20571m 32m
25 May 2022 @ 2025 ns56m
25 May 2022 @ 19291h 20m
25 May 2022 @ 1809 ns1d 23h 15m
23 May 2022 @ 18541m 5h 7m
23 May 2022 @ 13472m 2d 6h 50m
21 May 2022 @ 0657 ie wc21h 35m
20 May 2022 @ 09225m 19h 47m
19 May 2022 @ 13359m 1h 19m
19 May 2022 @ 12165m 33m
19 May 2022 @ 114334m
19 May 2022 @ 11093m 4h 57m
19 May 2022 @ 0612 ie16h 37m
18 May 2022 @ 133518h 53m
17 May 2022 @ 18425m 48m
17 May 2022 @ 17544m 17m
17 May 2022 @ 17373m 20s 7m
17 May 2022 @ 17301m 6m
17 May 2022 @ 1724 ns<1m 5d 6h 57m
12 May 2022 @ 1027 ie1d 1h 3m
11 May 2022 @ 0924 ie4d 1h 31m
07 May 2022 @ 0753 wc58m
07 May 2022 @ 0655 ie wc23h 12m
06 May 2022 @ 0743 ie wc24m
06 May 2022 @ 0719 ie wc2d 21h 40m
03 May 2022 @ 0939 ie wc1d 44m
02 May 2022 @ 0855 ie wc1d 14h 28m
30 Apr 2022 @ 1827 ns7h 38m
30 Apr 2022 @ 1049 ie wc4d 2h 14m
26 Apr 2022 @ 0835 ie1d 16h 14m
24 Apr 2022 @ 16215d 20h 40m
18 Apr 2022 @ 1941 ie wc3d 5h 31m
15 Apr 2022 @ 1410 ie wc3d 21h 19m
11 Apr 2022 @ 1651 ie wc2d 5h 46m
09 Apr 2022 @ 1105 ie wc22h 50m
08 Apr 2022 @ 1215 ie wc3h 37m
08 Apr 2022 @ 0838 ie wc51m
08 Apr 2022 @ 0747 ie wc3d 23h 43m
04 Apr 2022 @ 0804 wc10m
04 Apr 2022 @ 0754 ns wc3d 17h 28m
31 Mar 2022 @ 1426 ie wc20h 53m
30 Mar 2022 @ 1732:34 wc5m 18s 11d 4h 5m 39s
19 Mar 2022 @ 1326:55 wc5m 9s 6d 3h 51m
13 Mar 2022 @ 093514d 17h 43m
26 Feb 2022 @ 1452 ie wc1d 20h 31m
24 Feb 2022 @ 1821 ie wc27m
24 Feb 2022 @ 1754 wc5d 3h 5m
19 Feb 2022 @ 1448:29 wc1m 2s 1d 21h 57m
17 Feb 2022 @ 1651 ie wc3d 2h 18m

Interval Statistics

Interval Count100
Min6m
Max14d 17h 43m
Mean1d 10h 33m
Median18h 38m

Latest Notes

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