Last Known Eruption
21d 3m ago

Latest Eruptions

Eruption DurationInterval
26 May 2019 @ 0448 ?26d 18h 42m
29 Apr 2019 @ 1006 A long1h 27m
29 Apr 2019 @ 0839 long3m 43s 1h 37m
29 Apr 2019 @ 0702 wc long11h 14m
28 Apr 2019 @ 1948 ie wc1h 37m
28 Apr 2019 @ 1811 ns wc1h 40m
28 Apr 2019 @ 16311h 33m
28 Apr 2019 @ 1458 ns wc long1h 35m
28 Apr 2019 @ 1323 ns wc1h 41m
28 Apr 2019 @ 11421h 38m
28 Apr 2019 @ 1004 ie wc1h 31m
28 Apr 2019 @ 0833 ie wc1h 40m
28 Apr 2019 @ 0653 ie wc11h 5m
27 Apr 2019 @ 1948 ie wc1h 38m
27 Apr 2019 @ 1810 ie wc1h 33m
27 Apr 2019 @ 1637 ie wc1h 42m
27 Apr 2019 @ 1455 ns wc long1h 37m
27 Apr 2019 @ 1318 ns wc long1h 39m
27 Apr 2019 @ 1139 ns wc long1h 36m
27 Apr 2019 @ 1003 wc long1h 31m
27 Apr 2019 @ 0832 long1h 34m
27 Apr 2019 @ 0658 wc long6h 25m
27 Apr 2019 @ 0033 ie wc1h 17m
26 Apr 2019 @ 23161h 49m
26 Apr 2019 @ 2127 ie wc1h 29m
26 Apr 2019 @ 1958 wc long1h 40m
26 Apr 2019 @ 1818 A wc long1h 33m
26 Apr 2019 @ 1645 wc short3m 18s 1h 38m
26 Apr 2019 @ 1507 ie wc long1h 32m
26 Apr 2019 @ 1335 ns wc long1h 36m
26 Apr 2019 @ 1159 wc long~3m 59s 1h 41m
26 Apr 2019 @ 1018 ns wc long1h 33m
26 Apr 2019 @ 0845 wc long1h 32m
26 Apr 2019 @ 0713 ns wc long11h 6m
25 Apr 2019 @ 2007 wc long1h 39m
25 Apr 2019 @ 1828 long4m 15s 1h 33m
25 Apr 2019 @ 1655 wc long1h 27m
25 Apr 2019 @ 1528 wc long1h 27m
25 Apr 2019 @ 1401 wc long1h 43m
25 Apr 2019 @ 1218 wc long1h 27m
25 Apr 2019 @ 1051 ns wc long1h 36m
25 Apr 2019 @ 0915 wc long1h 38m
25 Apr 2019 @ 0737 wc long1h 36m
25 Apr 2019 @ 0601 wc long9h 27m
24 Apr 2019 @ 2034 wc long1h 32m
24 Apr 2019 @ 1902 wc long1h 33m
24 Apr 2019 @ 1729 long4m 4s 1h 35m
24 Apr 2019 @ 1554 wc long1h 32m
24 Apr 2019 @ 1422 wc long1h 40m
24 Apr 2019 @ 12421h 19m
24 Apr 2019 @ 1123 ns wc1h 49m
24 Apr 2019 @ 0934 ns wc long1h 33m
24 Apr 2019 @ 0801 ns wc long1h 48m
24 Apr 2019 @ 0613 ns wc long9h 32m
23 Apr 2019 @ 2041 wc1h 41m
23 Apr 2019 @ 1900 ns wc long1h 38m
23 Apr 2019 @ 1722 ns wc long1h 22m
23 Apr 2019 @ 1600 ns wc long1h 36m
23 Apr 2019 @ 1424 ie wc1h 35m
23 Apr 2019 @ 1249 ie wc1h 47m
23 Apr 2019 @ 1102 wc long1h 28m
23 Apr 2019 @ 0934 wc long1h 37m
23 Apr 2019 @ 0757 wc long1h 38m
23 Apr 2019 @ 0619 wc long1h 30m
23 Apr 2019 @ 0449 wc long1h 36m
23 Apr 2019 @ 0313 wc long6h 8m
22 Apr 2019 @ 2105 wc long1h 29m
22 Apr 2019 @ 1936 wc long1h 43m
22 Apr 2019 @ 1753 wc long1h 33m
22 Apr 2019 @ 1620 ns wc1h 36m
22 Apr 2019 @ 1444 ie wc long1h 18m
22 Apr 2019 @ 1326 ns wc1h 46m
22 Apr 2019 @ 1140 ie wc1h 30m
22 Apr 2019 @ 1010 ie wc1h 39m
22 Apr 2019 @ 0831 wc long1h 29m
22 Apr 2019 @ 0702 wc long1h 33m
22 Apr 2019 @ 0529 wc long1h 43m
22 Apr 2019 @ 0346 wc1h 31m
22 Apr 2019 @ 0215 ie wc long3h 9m
21 Apr 2019 @ 2306 wc long1h 30m
21 Apr 2019 @ 2136 wc long1h 22m
21 Apr 2019 @ 2014 wc long1h 41m
21 Apr 2019 @ 1833 wc long1h 44m
21 Apr 2019 @ 1649 ie wc long1h 23m
21 Apr 2019 @ 1526 wc1h 37m
21 Apr 2019 @ 1349 wc long1h 35m
21 Apr 2019 @ 1214 wc long~4m 17s 1h 33m
21 Apr 2019 @ 1041 ns wc long1h 27m
21 Apr 2019 @ 0914 wc long1h 44m
21 Apr 2019 @ 0730 wc long1h 28m
21 Apr 2019 @ 0602 wc long1h 49m
21 Apr 2019 @ 0413 wc long6h 8m
20 Apr 2019 @ 2205 wc long1h 44m
20 Apr 2019 @ 2021 wc long1h 36m
20 Apr 2019 @ 1845 wc long1h 27m
20 Apr 2019 @ 1718 wc long1h 34m
20 Apr 2019 @ 1544 wc long1h 43m
20 Apr 2019 @ 1401 wc long1h 25m
20 Apr 2019 @ 1236 wc long1h 35m
20 Apr 2019 @ 1101 A long1h 38m

Interval Statistics

Interval Count100
Min1h 17m
Max26d 18h 42m
Mean8h 35m
Median1h 36m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
10739 16 Nov 2018 @ 1845 --- STS Steam post-eruption filling entire viewing area.
10615 16 Oct 2018 @ 0417 --- JarnoO Large preplay for ~30s.
9554 08 Aug 2018 @ 1947 --- c.barwin This eruption was featured live on the final evening of National Geographic's Live show.
9536 08 Aug 2018 @ 0705 --- JarnoO ~30s sustained pre-eruption preplay.
9498 06 Aug 2018 @ 1939 --- c.barwin This eruption was covered on the 8/6/18 National Geographic's Yellowstone Live show.
8712 16 Jun 2018 @ 0912 --- JarnoO Large, sustained preplay made me think OF was going to start. It didn't.
7964 02 Apr 2018 @ 1140 --- Kevin L Snow was so heavy OF area was totally a whiteout on both streaming and static cam
7955 08 Mar 2018 @ 0643 --- DaveM This eruption was a long duration 3m10s
7817 09 Nov 2017 @ 0632 --- JarnoO Appears to be post-eruptive. Runoff channels steamy. Temperature as of writing 23°F.
7798 30 Oct 2017 @ 1017 30 Oct 2017 @ 1018 JarnoO Strong preplay, which could've resulted in an eruption.
7283 25 Sep 2017 @ 0924 --- Kitt B preplay, so previous eruption was a short
6996 23 Sep 2017 @ 0632 --- JarnoO ~45s strong preplay which usually results in an eruption. No eruption followed.
5071 19 Aug 2017 @ 1817 --- Graham Really big and long preplay that would normally start the eruption.
4503 19 Jul 2017 @ 1500 --- SteveO VC in now predicting Old Faithful 98 minutes + or - 10 minutes
4120 23 May 2017 @ 0513 --- JarnoO Was pre-eruptive spouting. Likely went before 0530.
3270 09 Jul 2016 @ 0246 --- JarnoO Looked like it was in a post-eruptive phase. Definitely went during nightly reset.
3220 06 Jul 2016 @ 0207 --- smousley This is my first time on the site. I live in Dubai, hence the odd time of this note. I was looking at the ABC News Live cam, which is not so live, and came here to find out when the next eruption of OF might be. Then is seem strange that there is no reported eruption for over 4 hours. Is it because no one reported one?
3141 27 Jun 2016 @ 0216 --- JarnoO May have erupted during early (0216-0225) nightly reset of the webcam. A lot of pre-eruptive spouting just before the interuption.
2935 01 Jun 2016 @ 2017 --- MikeG Forgot to write down eruption time. It might have been 20:17, and short duration.
315 22 Jun 2012 @ 0546 22 Jun 2012 @ 0552 Loisb I have OF starting at 0546 per the UB cam and it was a long. I also have Lion starting at 0552 which would make it an initial
111 17 Feb 2012 @ 1011 --- BB OF was 10:11 ie wc (time stamp UGB cam)
88 24 Jan 2012 @ 1250 --- ofcarolyn Park employees are downloading Old Faithful\'s temperature logger near 12:50 p.m. today.
727 19 Jan 2012 @ 1200 19 Jan 2012 @ 2359 WillBoekel Electronic temperature trace for the afternoon/evening has no spikes. Probably caused by an ice dam diverting the runoff.
1020 29 Sep 2008 @ 0000 29 Sep 2008 @ 2359 BoekelUpload
1010 09 Sep 2008 @ 1100 09 Sep 2008 @ 1109 BoekelUpload 11:0x 120 ft
970 20 Jun 2008 @ 0550 20 Jun 2008 @ 0559 BoekelUpload 5:5x
1365 27 Jul 2007 @ 0000 27 Jul 2007 @ 2359 BoekelUpload Old Faithful 90 minute long interval reimplemented.
1364 16 Jul 2007 @ 0000 16 Jul 2007 @ 2359 BoekelUpload Old Faithful long changed back to 92 minutes
1363 14 Jul 2007 @ 0000 14 Jul 2007 @ 2359 BoekelUpload Old Faithful prediction long interval changed to 90 minutes.
1362 11 Jun 2007 @ 0000 11 Jun 2007 @ 2359 BoekelUpload time missing
1361 22 May 2007 @ 0949 22 May 2007 @ 1301 BoekelUpload missing time [between 09:49 and 13:01 eruptions]
221 02 Feb 1972 @ 0000 02 Feb 1972 @ 2359 BoekelUpload extcold;fog
220 31 Jan 1972 @ 0000 --- BoekelUpload Fog <10
EntrySourceLinkComment
07 Aug 2018 @ 1711 JSJ https://www.flickr.com/photos/jsjgeology/45609961595 Photo (out of 3) of Old Faithful Geyser's 5:11 to 5:15 PM eruption on 7 August 2018.
27 Jul 2017 @ 1544 JSJ https://www.flickr.com/photos/jsjgeology/36496639821 Photo (1 of 2) of Old Faithful Geyser's 3:44 PM-onward eruption on 27 July 2017.
16 Jan 2017 @ 1255 ZubenElGenubi https://www.youtube.com/watch?v=juEHWs0fTjo YouTube @ 4x. Eruption closer to 12:55:30
18 Dec 2016 @ 1044 JSJ https://www.youtube.com/watch?v=xrfIZZxrvoI Webcam capture video of Old Faithful Geyser's 10:44 to 10:47 AM eruption on 18 December 2016.
10 Aug 2016 @ 1826 JSJ https://www.flickr.com/photos/jsjgeology/29791560694 Thermal image of Old Faithful Geyser's 6:26 PM-onward eruption on 10 August 2016.
10 Aug 2016 @ 1826 JSJ https://www.flickr.com/photos/jsjgeology/30336105571 Photo (1 of 10) of Old Faithful Geyser's 6:26 PM-onward eruption on 10 August 2016.
03 Jun 2016 @ 1139 JSJ https://www.flickr.com/photos/jsjgeology/28195935180 Photo (1 of 3) of Old Faithful Geyser's 11:39 AM eruption on 3 June 2016.
29 Jun 2016 @ 1434 Biddle https://imgur.com/gallery/2OyAk54 Late in eruption. Still screenshotting too slow.
27 Jun 2016 @ 1508 Biddle https://imgur.com/gallery/njPonFv Yet again, i need to screenshot faster. I am planning on doing this more often.
24 Apr 2016 @ 1847 JSJ https://www.youtube.com/watch?v=D8-zSGXWdf0 Video (via webcam) of the Old Faithful Geyser-Beehive Geyser dual eruption in the early evening of 24 April 2016.
09 Apr 2016 @ 1934 JSJ https://www.flickr.com/photos/jsjgeology/26336846585 Webcam screen capture photo (1 of 3) of Old Faithful Geyser's 7:34 to 7:38 PM eruption on 9 April 2016.
26 Mar 2016 @ 1915 ZubenElGenubi https://youtu.be/vGGyzWt9QZQ YouTube video showing eruption before webcam is swung away.
26 Mar 2016 @ 1254 JSJ https://www.youtube.com/watch?v=MvQH1ALv3No Video (via webcam) of Old Faithful Geyser's 12:54 to 12:59 PM eruption on 26 March 2016.
20 Mar 2016 @ 1141 JSJ https://www.youtube.com/watch?v=2LiBLge2frg Video (via webcam) of Old Faithful Geyser's 11:41 to 11:45 AM eruption on 20 March 2016.
18 Mar 2016 @ 1542 ZubenElGenubi https://youtu.be/dVluo98bzgc YouTube upload with clock sync
18 Mar 2016 @ 1046 JSJ https://www.flickr.com/photos/jsjgeology/25860369156 Video (via webcam) of Old Faithful Geyser's 10:46 to 10:50 AM eruption on 18 March 2016.
14 Mar 2016 @ 1658 JSJ https://www.youtube.com/watch?v=285OZNxyjtk Video (via webcam) of most of Old Faithful Geyser's short eruption from 4:58 to 5:01 PM on 14 March 2016.
04 Mar 2016 @ 1551 JSJ https://www.flickr.com/photos/jsjgeology/25392240742 Webcam screen capture photo (1 of 3) of the Old Faithful Geyser-Beehive Geyser concerted eruption in the afternoon of 4 March 2016.
13 Feb 2016 @ 1442 JSJ https://www.flickr.com/photos/jsjgeology/24761378690 Webcam screen capture photo (1 of 3) of Old Faithful Geyser's 2:42 to 2:46 PM eruption on 13 February 2016.
09 Feb 2016 @ 0846 JSJ https://www.flickr.com/photos/jsjgeology/24800481482 Webcam screen capture photo (1 or 2) of Old Faithful Geyser's 8:46 to 8:49 AM eruption on 9 February 2016.
Baseline does not exist.


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