| Interval Count | 100 |
| Min | 30m |
| Max | 59d 31m |
| Mean | 2d 4h 33m |
| Median | 5h 14m |
| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
|---|---|---|---|---|
| 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 |
| Entry | Source | Link | Comment |
|---|---|---|---|
| 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 |