Last Known Eruption
30m ago
Predicted Next Eruption
Today at 0800 ± 13 minutes

Latest Eruptions

Eruption DurationInterval
20 Jun 2018 @ 0623 wc1h 37m
20 Jun 2018 @ 0446 wc long1h 34m
20 Jun 2018 @ 0312 wc1h 39m
20 Jun 2018 @ 0133 wc long1h 31m
20 Jun 2018 @ 00021h 38m
19 Jun 2018 @ 2224 wc long1h 36m
19 Jun 2018 @ 2048 wc long1h 29m
19 Jun 2018 @ 1919 ie wc1h 19m
19 Jun 2018 @ 1800 ie wc1h 32m
19 Jun 2018 @ 1628 wc long1h 37m
19 Jun 2018 @ 1451 wc long±4m12s1h 33m
19 Jun 2018 @ 1318 wc long<3m42s1h 48m
19 Jun 2018 @ 1130 wc long1h 33m
19 Jun 2018 @ 0957 wc long1h 31m
19 Jun 2018 @ 0826 wc long1h 36m
19 Jun 2018 @ 0650 wc long1h 4m
19 Jun 2018 @ 0546 wc short1h 34m
19 Jun 2018 @ 0412 wc long1h 36m
19 Jun 2018 @ 0236 wc long1h 46m
19 Jun 2018 @ 0050 wc long1h 37m
18 Jun 2018 @ 2313 wc long1h 37m
18 Jun 2018 @ 2136 wc long1h 36m
18 Jun 2018 @ 2000 wc long1h 41m
18 Jun 2018 @ 1819 wc long1h 30m
18 Jun 2018 @ 1649 wc long1h 32m
18 Jun 2018 @ 1517 ie wc long1h 36m
18 Jun 2018 @ 1341 wc long1h 37m
18 Jun 2018 @ 1204 wc long1h 26m
18 Jun 2018 @ 1038 wc long1h 46m
18 Jun 2018 @ 0852 wc long1h 28m
18 Jun 2018 @ 0724 wc long1h 38m
18 Jun 2018 @ 0546 wc long1h 37m
18 Jun 2018 @ 0409 wc long1h 36m
18 Jun 2018 @ 0233 wc1h 34m
18 Jun 2018 @ 0059 wc1h 30m
17 Jun 2018 @ 2329 wc1h 37m
17 Jun 2018 @ 2152 wc long1h 37m
17 Jun 2018 @ 2015 wc long1h 41m
17 Jun 2018 @ 1834 wc long1h 36m
17 Jun 2018 @ 1658 wc long1h 32m
17 Jun 2018 @ 1526 wc long1h 43m
17 Jun 2018 @ 1343 wc long1h 26m
17 Jun 2018 @ 1217 wc long3m50s < d < 4m03s1h 34m
17 Jun 2018 @ 1043 wc long1h 38m
17 Jun 2018 @ 0905 wc long1h 30m
17 Jun 2018 @ 0735 wc long1h 38m
17 Jun 2018 @ 0557 wc long1h 35m
17 Jun 2018 @ 0422 wc long1h 36m
17 Jun 2018 @ 0246 wc long1h 37m
17 Jun 2018 @ 0109 wc long1h 36m
16 Jun 2018 @ 2333 long1h 34m
16 Jun 2018 @ 2159 wc long1h 31m
16 Jun 2018 @ 2028 wc long1h 37m
16 Jun 2018 @ 1851 wc1h 30m
16 Jun 2018 @ 1721 wc long1h 31m
16 Jun 2018 @ 1550 wc long>3m 33s 1h 39m
16 Jun 2018 @ 1411 wc long±4m13s1h 37m
16 Jun 2018 @ 1234 wc long±3m57s1h 29m
16 Jun 2018 @ 1105 wc long<4m10s1h 42m
16 Jun 2018 @ 0923 wc long±4m15s1h 37m
16 Jun 2018 @ 0746 wc long1h 44m
16 Jun 2018 @ 0602 wc long1h 29m
16 Jun 2018 @ 0433 wc long1h 37m
16 Jun 2018 @ 0256 wc long1h 32m
16 Jun 2018 @ 0124 wc long1h 31m
15 Jun 2018 @ 2353 wc long1h 33m
15 Jun 2018 @ 2220 wc long1h 42m
15 Jun 2018 @ 2038 wc long56m
15 Jun 2018 @ 1942 wc short1h 45m
15 Jun 2018 @ 1757 wc long1h 44m
15 Jun 2018 @ 1613 wc long1h 32m
15 Jun 2018 @ 1441 wc long<3m50s1h 43m
15 Jun 2018 @ 1258 wc long1h 0m
15 Jun 2018 @ 1158 wc short1h 48m
15 Jun 2018 @ 1010 wc long1h 29m
15 Jun 2018 @ 0841 wc long1h 41m
15 Jun 2018 @ 0700 wc long1h 27m
15 Jun 2018 @ 0533 wc long1h 39m
15 Jun 2018 @ 0354 wc long1h 33m
15 Jun 2018 @ 0221 wc long1h 33m
15 Jun 2018 @ 0048 wc long1h 33m
14 Jun 2018 @ 2315 wc long1h 36m
14 Jun 2018 @ 2139 wc long1h 37m
14 Jun 2018 @ 2002 wc long1h 29m
14 Jun 2018 @ 1833 wc long1h 35m
14 Jun 2018 @ 1658 wc long1h 36m
14 Jun 2018 @ 1522 wc long±4m04s1h 34m
14 Jun 2018 @ 1348 wc long±4m28s1h 27m
14 Jun 2018 @ 1221 wc long1h 47m
14 Jun 2018 @ 1034 wc long1h 27m
14 Jun 2018 @ 0907 wc long3m 45s 1h 41m
14 Jun 2018 @ 0726 wc long1h 31m
14 Jun 2018 @ 0555 wc long1h 40m
14 Jun 2018 @ 0415 wc long1h 52m
14 Jun 2018 @ 0223 wc long1h 38m
14 Jun 2018 @ 0045 wc1h 29m
13 Jun 2018 @ 2316 wc1h 39m
13 Jun 2018 @ 2137 wc1h 30m
13 Jun 2018 @ 2007 wc long1h 34m
13 Jun 2018 @ 1833 wc long1h 23m

Interval Statistics

Interval Count100
Min56m
Max1h 52m
Mean1h 34m
Median1h 36m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
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.
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.


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