Last Known Eruption
18m ago
Predicted Next Eruption
Today at 0955 ± 13 minutes

Latest Eruptions

Eruption DurationInterval
19 Nov 2018 @ 0818 wc1h 23m
19 Nov 2018 @ 0655 wc long1h 44m
19 Nov 2018 @ 0511 wc long1h 30m
19 Nov 2018 @ 0341 wc long1h 39m
19 Nov 2018 @ 0202 wc long1h 22m
19 Nov 2018 @ 0040 wc long1h 37m
18 Nov 2018 @ 2303 wc long1h 33m
18 Nov 2018 @ 2130 wc long1h 32m
18 Nov 2018 @ 1958 wc long1h 33m
18 Nov 2018 @ 1825 wc long1h 25m
18 Nov 2018 @ 1700 wc long1h 36m
18 Nov 2018 @ 1524 wc long1h 31m
18 Nov 2018 @ 1353 wc long1h 34m
18 Nov 2018 @ 1219 wc1h 35m
18 Nov 2018 @ 1044 wc long1h 28m
18 Nov 2018 @ 0916 wc long1h 36m
18 Nov 2018 @ 0740 wc long1h 30m
18 Nov 2018 @ 0610 wc long1h 35m
18 Nov 2018 @ 0435 wc long1h 27m
18 Nov 2018 @ 0308 wc long1h 37m
18 Nov 2018 @ 0131 wc long1h 31m
18 Nov 2018 @ 0000 wc long1h 41m
17 Nov 2018 @ 2219 wc long1h 22m
17 Nov 2018 @ 2057 wc long1h 47m
17 Nov 2018 @ 1910 wc long1h 36m
17 Nov 2018 @ 1734 wc long1h 35m
17 Nov 2018 @ 1559 wc long1h 24m
17 Nov 2018 @ 1435 wc long1h 34m
17 Nov 2018 @ 1301 wc long1h 34m
17 Nov 2018 @ 1127 wc long1h 34m
17 Nov 2018 @ 0953 wc long1h 40m
17 Nov 2018 @ 0813 wc long1h 29m
17 Nov 2018 @ 0644 wc long1h 35m
17 Nov 2018 @ 0509 wc long1h 30m
17 Nov 2018 @ 0339 wc long1h 34m
17 Nov 2018 @ 0205 wc long1h 1m
17 Nov 2018 @ 0104 wc short1h 43m
16 Nov 2018 @ 2321 wc long1h 33m
16 Nov 2018 @ 2148 wc long1h 39m
16 Nov 2018 @ 2009 wc long1h 29m
16 Nov 2018 @ 1840 wc long1h 45m
16 Nov 2018 @ 1655 wc long1h 24m
16 Nov 2018 @ 1531 wc long1h 41m
16 Nov 2018 @ 1350 wc long1h 37m
16 Nov 2018 @ 1213 ns wc long1h 30m
16 Nov 2018 @ 1043 wc long1h 42m
16 Nov 2018 @ 0901 wc long1h 25m
16 Nov 2018 @ 0736 wc long1h 27m
16 Nov 2018 @ 0609 wc long1h 45m
16 Nov 2018 @ 0424 wc long1h 38m
16 Nov 2018 @ 0246 wc long1h 28m
16 Nov 2018 @ 0118 wc long1h 36m
15 Nov 2018 @ 2342 wc long1h 35m
15 Nov 2018 @ 2207 wc long1h 30m
15 Nov 2018 @ 2037 wc long1h 32m
15 Nov 2018 @ 1905 wc long1h 35m
15 Nov 2018 @ 1730 wc long1h 39m
15 Nov 2018 @ 1551 wc long1h 24m
15 Nov 2018 @ 1427 ie wc1h 38m
15 Nov 2018 @ 1249 wc long4m00s < d < 4m07s1h 34m
15 Nov 2018 @ 1115 wc long1h 34m
15 Nov 2018 @ 0941 wc long1h 34m
15 Nov 2018 @ 0807 wc long1h 29m
15 Nov 2018 @ 0638 wc long1h 30m
15 Nov 2018 @ 0508 wc long1h 41m
15 Nov 2018 @ 0327 wc long1h 28m
15 Nov 2018 @ 0159 wc long1h 34m
15 Nov 2018 @ 0025 wc long1h 37m
14 Nov 2018 @ 2248 wc long1h 26m
14 Nov 2018 @ 2122 wc long1h 33m
14 Nov 2018 @ 1949 wc long1h 43m
14 Nov 2018 @ 1806 wc long1h 31m
14 Nov 2018 @ 1635 wc long1h 42m
14 Nov 2018 @ 1453 wc long1h 31m
14 Nov 2018 @ 1322 wc long1h 30m
14 Nov 2018 @ 1152 wc long1h 34m
14 Nov 2018 @ 1018 wc long1h 33m
14 Nov 2018 @ 0845 wc1h 38m
14 Nov 2018 @ 0707 wc long1h 34m
14 Nov 2018 @ 0533 wc long1h 29m
14 Nov 2018 @ 0404 wc long1h 31m
14 Nov 2018 @ 0233 wc long1h 30m
14 Nov 2018 @ 0103 wc long1h 49m
13 Nov 2018 @ 2314 wc long1h 30m
13 Nov 2018 @ 2144 wc long1h 40m
13 Nov 2018 @ 2004 wc long1h 39m
13 Nov 2018 @ 1825 wc long1h 45m
13 Nov 2018 @ 1640 wc long46m
13 Nov 2018 @ 1554 wc short1h 53m
13 Nov 2018 @ 1401 ie wc long1h 30m
13 Nov 2018 @ 1231 wc long1h 42m
13 Nov 2018 @ 1049 wc long1h 44m
13 Nov 2018 @ 0905 wc long1h 30m
13 Nov 2018 @ 0735 wc long1h 31m
13 Nov 2018 @ 0604 wc long1h 25m
13 Nov 2018 @ 0439 wc long1h 29m
13 Nov 2018 @ 0310 wc long1h 37m
13 Nov 2018 @ 0133 wc long1h 39m
12 Nov 2018 @ 2354 wc long1h 33m
12 Nov 2018 @ 2221 wc long1h 46m

Interval Statistics

Interval Count100
Min46m
Max1h 53m
Mean1h 33m
Median1h 34m

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 --- DGInc 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 --- DGInc ~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 --- DGInc 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 --- DGInc Appears to be post-eruptive. Runoff channels steamy. Temperature as of writing 23°F.
7798 30 Oct 2017 @ 1017 30 Oct 2017 @ 1018 DGInc 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 --- DGInc ~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 --- DGInc Was pre-eruptive spouting. Likely went before 0530.
3270 09 Jul 2016 @ 0246 --- DGInc 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 --- DGInc 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
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,
07 Feb 2016 @ 1142 JSJ https://www.flickr.com/photos/jsjgeology/24511711269 Webcam screen capture photo (1 of 3) of Old Faithful Geyser's 11:42 to 11:46 AM eruption on 7 February 2016.
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: webmaster@geysertimes.org

Support open geyser data: Patreon Page

© Copyright 2011-2018

Facebook Page Telegram Channel Google+ Page 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.