Last Known Eruption
18m ago

Latest Eruptions

Eruption DurationInterval
05 Jun 2020 @ 2020 ie wc55m
05 Jun 2020 @ 1925 wc7h 5m
05 Jun 2020 @ 1220 ie wc2h 52m
05 Jun 2020 @ 092848m
05 Jun 2020 @ 0840 wc2h 26m
05 Jun 2020 @ 0614 ie wc12h 47m
04 Jun 2020 @ 1727 ie wc5h 47m
04 Jun 2020 @ 1140 ns1h 19m
04 Jun 2020 @ 1021 ie3h 48m
04 Jun 2020 @ 0633 ie wc10h 49m
03 Jun 2020 @ 1944 wc1h 1m
03 Jun 2020 @ 1843 wc1h 40m
03 Jun 2020 @ 1703 ie wc2h 33m
03 Jun 2020 @ 14301h 23m
03 Jun 2020 @ 1307 ie wc4h 32m
03 Jun 2020 @ 0835 ie wc13h 49m
02 Jun 2020 @ 1846 ns wc1h 33m
02 Jun 2020 @ 1713 ie wc20h 35m
01 Jun 2020 @ 2038 wc1h 30m
01 Jun 2020 @ 1908 wc1h 55m
01 Jun 2020 @ 1713 ie1h 39m
01 Jun 2020 @ 1534 ns6h 26m
01 Jun 2020 @ 0908 ie wc1h 34m
01 Jun 2020 @ 0734 ie wc2h 14m
01 Jun 2020 @ 0520 ie wc10h 35m
31 May 2020 @ 1845 wc3h 17m
31 May 2020 @ 1528 ie wc9h 6m
31 May 2020 @ 0622 ie wc11h 38m
30 May 2020 @ 1844 wc1h 14m
30 May 2020 @ 1730 ie wc1h 17m
30 May 2020 @ 1613 wc2h 10m
30 May 2020 @ 1403 wc1h 45m
30 May 2020 @ 1218 wc4h 37m
30 May 2020 @ 0741 wc12h 49m
29 May 2020 @ 1852 wc1h 26m
29 May 2020 @ 1726 ie wc7h 1m
29 May 2020 @ 1025 ie wc2h 17m
29 May 2020 @ 0808 ie wc15h 30m
28 May 2020 @ 1638 ie wc1h 31m
28 May 2020 @ 1507 wc6h 59m
28 May 2020 @ 0808 ie wc11h 56m
27 May 2020 @ 2012 wc3h 13m
27 May 2020 @ 1659 wc4m 6h 35m
27 May 2020 @ 1024 ie wc1d 36m
26 May 2020 @ 0948 ie wc1h 36m
26 May 2020 @ 0812 wc1h 37m
26 May 2020 @ 0635 ie wc11h 53m
25 May 2020 @ 1842 ie wc1h 53m
25 May 2020 @ 1649 ns wc2h 22m
25 May 2020 @ 1427 ns wc5h 28m
25 May 2020 @ 0859 ns wc17h 57m
24 May 2020 @ 1502 ie wc8h 3m
24 May 2020 @ 0659 ie wc1d 11h 56m
22 May 2020 @ 1902:181h 27m
22 May 2020 @ 1735 ie wc3h 31m
22 May 2020 @ 1404 ie wc1h 57m
22 May 2020 @ 1207 ie wc2h 3m
22 May 2020 @ 1004 ns wc2h 15m
22 May 2020 @ 0749 wc12h 48m
21 May 2020 @ 1901 wc2h 45m
21 May 2020 @ 1616 ie wc1h 4m
21 May 2020 @ 1512 wc5h 38m
21 May 2020 @ 0934 ie wc2h 29m
21 May 2020 @ 0705 wc14h 16m
20 May 2020 @ 1649 ie wc5h 0m
20 May 2020 @ 1149 ie wc5h 2m
20 May 2020 @ 0647 ie wc10h 32m
19 May 2020 @ 2015 wc3h 19m
19 May 2020 @ 1656 ie wc56m
19 May 2020 @ 1600 wc1h 19m
19 May 2020 @ 1441 ie wc4h 8m
19 May 2020 @ 1033 ie1h 47m
19 May 2020 @ 0846 ie1h 20m
19 May 2020 @ 0726 ie wc11h 42m
18 May 2020 @ 1944 wc2h 20m
18 May 2020 @ 1724 ns wc1h 22m
18 May 2020 @ 1602 ie wc1h 52m
18 May 2020 @ 1410 ie wc1h 37m
18 May 2020 @ 1233 ie1h 53m
18 May 2020 @ 1040 wc1h 40m
18 May 2020 @ 0900 wc1h 3m
18 May 2020 @ 0757 wc1h 33m
18 May 2020 @ 0624 wc12h 1m
17 May 2020 @ 1823 ns wc1h 5m
17 May 2020 @ 1718 ie wc1h 48m
17 May 2020 @ 1530 wc3h 0m
17 May 2020 @ 1230 ie wc2h 36m
17 May 2020 @ 0954 wc13h 54m
16 May 2020 @ 2000 ns wc3h 19m
16 May 2020 @ 1641 wc1h 39m
16 May 2020 @ 1502 ie wc2h 2m
16 May 2020 @ 1300 ie wc2h 56m
16 May 2020 @ 1004 ie wc2h 2m
16 May 2020 @ 0802 ie wc1h 9m
16 May 2020 @ 0653 wc15h 20m
15 May 2020 @ 1533 ie wc5h 32m
15 May 2020 @ 1001 wc1h 39m
15 May 2020 @ 0822 ns wc2h 6m
15 May 2020 @ 0616 ie wc13h 41m
14 May 2020 @ 1635 wc1h 31m

Interval Statistics

Interval Count100
Min48m
Max1d 11h 56m
Mean5h 19m
Median2h 27m

Latest Notes

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


All data is shown in US/Mountain timezone unless specified otherwise.

GeyserTimes.org is not affiliated with the National Park Service, but it is "for the benefit and enjoyment of the people".

If you have any questions or comments please contact: support@geysertimes.org

Support open geyser data: Patreon Page

© Copyright 2011-2020

Facebook Page Telegram Channel Get it on Google Play Download on the App Store

Google Play and the Google Play logo are trademarks of Google LLC.

Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc., registered in the U.S. and other countries.