Last Known Eruption
1h 0m ago
Predicted Next Eruption
Today at 0532 ± 13 minutes

Latest Eruptions

EruptionDurationInterval
23 Feb 2018 @ 0355 wc1h 33m
23 Feb 2018 @ 0222 wc long1h 26m
23 Feb 2018 @ 0056 wc long1h 40m
22 Feb 2018 @ 2316 wc long1h 37m
22 Feb 2018 @ 2139 wc long1h 7m
22 Feb 2018 @ 2032 wc short1h 35m
22 Feb 2018 @ 1857 wc long1h 34m
22 Feb 2018 @ 1723 wc long1h 32m
22 Feb 2018 @ 1551 wc long3m31s < d < 3m50s1h 44m
22 Feb 2018 @ 1407 wc1h 7m
22 Feb 2018 @ 1300 wc short1h 37m
22 Feb 2018 @ 1123 wc long1h 38m
22 Feb 2018 @ 0945 wc long1h 44m
22 Feb 2018 @ 0801 wc long1h 27m
22 Feb 2018 @ 0634 wc long1h 44m
22 Feb 2018 @ 0450 wc long1h 25m
22 Feb 2018 @ 0325 wc long1h 42m
22 Feb 2018 @ 0143 wc long1h 29m
22 Feb 2018 @ 0014 wc long1h 40m
21 Feb 2018 @ 2234 wc long1h 26m
21 Feb 2018 @ 2108 wc1h 42m
21 Feb 2018 @ 1926 wc long1h 30m
21 Feb 2018 @ 1756 wc long1h 30m
21 Feb 2018 @ 1626 wc long1h 26m
21 Feb 2018 @ 1500 wc long1h 48m
21 Feb 2018 @ 1312 wc long1h 39m
21 Feb 2018 @ 1133 wc long1h 30m
21 Feb 2018 @ 1003 wc long1h 34m
21 Feb 2018 @ 0829 wc long1h 42m
21 Feb 2018 @ 0647 wc long1h 30m
21 Feb 2018 @ 0517 wc long1h 41m
21 Feb 2018 @ 0336 wc long1h 33m
21 Feb 2018 @ 0203 wc long1h 32m
21 Feb 2018 @ 0031 wc long1h 30m
20 Feb 2018 @ 2301 wc long1h 34m
20 Feb 2018 @ 2127 wc long1h 41m
20 Feb 2018 @ 1946 wc long1h 25m
20 Feb 2018 @ 1821 wc1h 29m
20 Feb 2018 @ 1652 wc long1h 39m
20 Feb 2018 @ 1513 wc long1h 30m
20 Feb 2018 @ 1343 wc long1h 42m
20 Feb 2018 @ 1201 wc long1h 27m
20 Feb 2018 @ 1034 wc long1h 28m
20 Feb 2018 @ 0906 wc1h 36m
20 Feb 2018 @ 0730 wc long1h 29m
20 Feb 2018 @ 0601 wc1h 37m
20 Feb 2018 @ 0424 wc1h 51m
20 Feb 2018 @ 0233 wc long1h 41m
20 Feb 2018 @ 0052 wc long1h 30m
19 Feb 2018 @ 2322 wc long1h 40m
19 Feb 2018 @ 2142 wc long1h 38m
19 Feb 2018 @ 2004 wc long1h 27m
19 Feb 2018 @ 1837 wc1h 35m
19 Feb 2018 @ 1702 ie wc1h 31m
19 Feb 2018 @ 1531 wc long1h 34m
19 Feb 2018 @ 1357 wc1h 44m
19 Feb 2018 @ 1213 wc long±3m58s1h 33m
19 Feb 2018 @ 1040 wc1h 27m
19 Feb 2018 @ 0913 wc1h 38m
19 Feb 2018 @ 0735 wc1h 27m
19 Feb 2018 @ 0608 wc1h 43m
19 Feb 2018 @ 0425 wc1h 31m
19 Feb 2018 @ 0254 wc1h 40m
19 Feb 2018 @ 0114 wc1h 43m
18 Feb 2018 @ 2331 wc1h 32m
18 Feb 2018 @ 2159 wc1h 44m
18 Feb 2018 @ 2015 wc1h 33m
18 Feb 2018 @ 1842 wc1h 33m
18 Feb 2018 @ 1709 wc long1h 34m
18 Feb 2018 @ 1535 wc1h 43m
18 Feb 2018 @ 1352 wc long±4m29s1h 9m
18 Feb 2018 @ 1243 wc short1m 50s 1h 52m
18 Feb 2018 @ 1051 ? wc46m
18 Feb 2018 @ 1005 wc short1h 48m
18 Feb 2018 @ 0817 wc long1h 37m
18 Feb 2018 @ 0640 wc long1h 26m
18 Feb 2018 @ 0514 wc long1h 38m
18 Feb 2018 @ 0336 wc long1h 25m
18 Feb 2018 @ 0211 wc long1h 38m
18 Feb 2018 @ 0033 wc long1h 39m
17 Feb 2018 @ 2254 wc long1h 33m
17 Feb 2018 @ 2121 wc long1h 31m
17 Feb 2018 @ 1950 wc long1h 28m
17 Feb 2018 @ 1822 wc long1h 43m
17 Feb 2018 @ 1639 wc long3h 22m
17 Feb 2018 @ 1317 wc long1h 38m
17 Feb 2018 @ 1139 ie wc1h 33m
17 Feb 2018 @ 1006 wc long1h 42m
17 Feb 2018 @ 0824 wc long1h 31m
17 Feb 2018 @ 0653 wc1h 29m
17 Feb 2018 @ 0524 wc long1h 49m
17 Feb 2018 @ 0335 wc long1h 29m
17 Feb 2018 @ 0206 wc long1h 35m
17 Feb 2018 @ 0031 wc long1h 36m
16 Feb 2018 @ 2255 wc long1h 35m
16 Feb 2018 @ 2120 wc long57m
16 Feb 2018 @ 2023 wc short1h 39m
16 Feb 2018 @ 1844 wc long1h 35m
16 Feb 2018 @ 1709 wc long1h 34m
16 Feb 2018 @ 1535 wc long1h 38m

Interval Statistics

Interval Count100
Min46m
Max3h 22m
Mean1h 34m
Median1h 34m

Latest Notes

Note IDStart TimeEnd TimeEntrantNote
7817 09 Nov 2017 @ 0632 --- DGInc Appears to be post-eruptive. Runoff channels steamy. Temperature as of writing 23°F.
7814 03 Nov 2017 @ 1621 03 Nov 2017 @ 1622 DGInc Big preplay that would've started an eruption - didn't start
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.
2875 22 May 2016 @ 0205 --- DaveM Old Faithful erupted. Too bad that person watching it didn't report the time so we would have a reliable observation.
2870 21 May 2016 @ 2248 --- DaveM Old Faithful erupted. But since "eyes in the basin are most often more reliable than eyes through the webcam" I hope someone in the basin saw the eruption.
2643 02 Jan 2016 @ 0629 --- JoeN OF really fogged the area could not see eruption 0610-0615?
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.


Facebook Page Google+ Page Android app on Google Play

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

Questions/ Comments contact: webmaster@geysertimes.org

Support open geyser data: Patreon Page

Copyright 2011-2018