Last Known Eruption
43m ago
Predicted Next Eruption
Today at 1606 ± 13 minutes

Latest Eruptions

Eruption DurationInterval
12 Nov 2018 @ 1429 wc long1h 28m
12 Nov 2018 @ 1301 wc long1h 35m
12 Nov 2018 @ 1126 wc long1h 27m
12 Nov 2018 @ 0959 wc long1h 0m
12 Nov 2018 @ 0859 wc short1h 42m
12 Nov 2018 @ 0717 wc long54m
12 Nov 2018 @ 0623 wc short1h 51m
12 Nov 2018 @ 0432 wc long50m
12 Nov 2018 @ 0342 wc short1h 44m
12 Nov 2018 @ 0158 wc long1h 32m
12 Nov 2018 @ 0026 wc long1h 27m
11 Nov 2018 @ 2259 wc long1h 29m
11 Nov 2018 @ 2130 wc long1h 33m
11 Nov 2018 @ 1957 wc1h 34m
11 Nov 2018 @ 1823 wc1h 12m
11 Nov 2018 @ 1711 wc short1h 40m
11 Nov 2018 @ 1531 wc long1h 25m
11 Nov 2018 @ 1406 wc long1h 36m
11 Nov 2018 @ 1230 wc long1h 31m
11 Nov 2018 @ 1059 wc long1h 35m
11 Nov 2018 @ 0924 wc long1h 36m
11 Nov 2018 @ 0748 wc long1h 26m
11 Nov 2018 @ 0622 wc long1h 32m
11 Nov 2018 @ 0450 wc long1h 37m
11 Nov 2018 @ 0313 wc long1h 37m
11 Nov 2018 @ 0136 wc long1h 21m
11 Nov 2018 @ 0015 wc long1h 37m
10 Nov 2018 @ 2238 wc long1h 38m
10 Nov 2018 @ 2100 wc1h 31m
10 Nov 2018 @ 1929 ie wc long1h 37m
10 Nov 2018 @ 1752 wc1h 40m
10 Nov 2018 @ 1612 wc long1h 32m
10 Nov 2018 @ 1440 wc long1h 37m
10 Nov 2018 @ 1303 wc long1h 38m
10 Nov 2018 @ 1125 ns wc long1h 33m
10 Nov 2018 @ 0952 wc long1h 39m
10 Nov 2018 @ 0813 wc long1h 22m
10 Nov 2018 @ 0651 wc long1h 36m
10 Nov 2018 @ 0515 wc long1h 40m
10 Nov 2018 @ 0335 wc long1h 36m
10 Nov 2018 @ 0159 wc long1h 32m
10 Nov 2018 @ 0027 wc long1h 37m
09 Nov 2018 @ 2250 wc1h 27m
09 Nov 2018 @ 2123 wc long1h 40m
09 Nov 2018 @ 1943 wc long1h 26m
09 Nov 2018 @ 1817 wc long1h 40m
09 Nov 2018 @ 1637 wc long1h 38m
09 Nov 2018 @ 1459 wc long~4m 6s 1h 29m
09 Nov 2018 @ 1330 ie wc1h 30m
09 Nov 2018 @ 1200 wc long1h 34m
09 Nov 2018 @ 1026 long1h 32m
09 Nov 2018 @ 0854 wc long1h 46m
09 Nov 2018 @ 0708 wc long1h 36m
09 Nov 2018 @ 0532 wc long1h 33m
09 Nov 2018 @ 0359 wc long1h 30m
09 Nov 2018 @ 0229 wc long1h 38m
09 Nov 2018 @ 0051 wc long1h 24m
08 Nov 2018 @ 2327 wc long1h 34m
08 Nov 2018 @ 2153 wc long1h 25m
08 Nov 2018 @ 2028 wc long1h 39m
08 Nov 2018 @ 1849 wc long1h 29m
08 Nov 2018 @ 1720 wc long1h 27m
08 Nov 2018 @ 1553 wc long1h 28m
08 Nov 2018 @ 1425 wc long1h 30m
08 Nov 2018 @ 1255 wc long1h 30m
08 Nov 2018 @ 1125 wc long1h 30m
08 Nov 2018 @ 0955 wc long1h 31m
08 Nov 2018 @ 0824 wc long1h 31m
08 Nov 2018 @ 0653 wc long1h 44m
08 Nov 2018 @ 0509 wc long1h 27m
08 Nov 2018 @ 0342 wc long1h 39m
08 Nov 2018 @ 0203 wc long1h 25m
08 Nov 2018 @ 0038 wc long1h 37m
07 Nov 2018 @ 2301 wc long1h 37m
07 Nov 2018 @ 2124 wc long1h 51m
07 Nov 2018 @ 1933 wc long1h 30m
07 Nov 2018 @ 1803 wc long1h 23m
07 Nov 2018 @ 1640 A wc1h 37m
07 Nov 2018 @ 1503 wc long1h 34m
07 Nov 2018 @ 1329 wc long1h 18m
07 Nov 2018 @ 1211 wc long1h 43m
07 Nov 2018 @ 1028 wc long1h 35m
07 Nov 2018 @ 0853 wc long1h 42m
07 Nov 2018 @ 0711 wc long1h 29m
07 Nov 2018 @ 0542 wc long1h 34m
07 Nov 2018 @ 0408 wc1h 34m
07 Nov 2018 @ 0234 wc long1h 37m
07 Nov 2018 @ 0057 wc long1h 34m
06 Nov 2018 @ 2323 wc long1h 25m
06 Nov 2018 @ 2158 wc long1h 34m
06 Nov 2018 @ 2024 wc long1h 36m
06 Nov 2018 @ 1848 wc long1h 34m
06 Nov 2018 @ 1714 ie wc long1h 27m
06 Nov 2018 @ 1547 wc long1h 37m
06 Nov 2018 @ 1410 wc long1h 32m
06 Nov 2018 @ 1238 wc long1h 31m
06 Nov 2018 @ 1107 long1h 26m
06 Nov 2018 @ 0941 wc long1h 29m
06 Nov 2018 @ 0812 wc long1h 35m
06 Nov 2018 @ 0637 wc long1h 35m

Interval Statistics

Interval Count100
Min50m
Max1h 51m
Mean1h 32m
Median1h 34m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
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.
9225 16 Jul 2018 @ 2100 --- STS Saw people leaving the area starting at 20:56 so an eruption probably between 20:50 - 20:55
9145 11 Jul 2018 @ 2154 --- STS Given the 3 hour interval between 18:29 and 21:30, it’s safe to assume there was an eruption sometime around 20:00.
9087 09 Jul 2018 @ 2014 --- STS NPS lists new prediction of 9:02 ± 10 minutes at about 7:35. OF probably erupted sometime around then.
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.


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