Last Known Eruption
1h 9m ago
Predicted Next Eruption
Today at 1107 ± 13 minutes

Latest Eruptions

EruptionDurationInterval
23 Jul 2017 @ 0931 ie wc1h 31m
23 Jul 2017 @ 0800 ie1h 42m
23 Jul 2017 @ 0618 ns long8h 13m
22 Jul 2017 @ 2205 ie3h 13m
22 Jul 2017 @ 1852 long6h 4m
22 Jul 2017 @ 1248 short1h 43m
22 Jul 2017 @ 1105 long4h 9m
22 Jul 2017 @ 0656 ns1h 30m
22 Jul 2017 @ 0526 long7h 48m
21 Jul 2017 @ 2138 ie1h 48m
21 Jul 2017 @ 1950 long1h 35m
21 Jul 2017 @ 1815 long1h 36m
21 Jul 2017 @ 1639 long1h 38m
21 Jul 2017 @ 1501 long1h 31m
21 Jul 2017 @ 13301h 36m
21 Jul 2017 @ 1154 long1h 49m
21 Jul 2017 @ 1005 long3h 9m
21 Jul 2017 @ 0656 ie1h 39m
21 Jul 2017 @ 0517 ns long6h 16m
20 Jul 2017 @ 23011h 38m
20 Jul 2017 @ 2123 long6h 19m
20 Jul 2017 @ 1504 ns wc1h 30m
20 Jul 2017 @ 1334 ns wc1h 45m
20 Jul 2017 @ 1149 ns wc3h 13m
20 Jul 2017 @ 0836 long1h 38m
20 Jul 2017 @ 0658 long1h 32m
20 Jul 2017 @ 0526 ie12h 37m
19 Jul 2017 @ 1649 ie wc1h 31m
19 Jul 2017 @ 1518 ie wc1h 52m
19 Jul 2017 @ 13261h 35m
19 Jul 2017 @ 1151 long1h 47m
19 Jul 2017 @ 1004 long1h 7m
19 Jul 2017 @ 0857 short1h 40m
19 Jul 2017 @ 0717 long1h 37m
19 Jul 2017 @ 0540 ns long1h 38m
19 Jul 2017 @ 0402 long8h 0m
18 Jul 2017 @ 2002 long1h 36m
18 Jul 2017 @ 1826 long1h 42m
18 Jul 2017 @ 1644 long1h 39m
18 Jul 2017 @ 1505 ns wc1h 36m
18 Jul 2017 @ 1329 long3h 17m
18 Jul 2017 @ 1012 ns long4h 31m
18 Jul 2017 @ 0541 ns long14h 23m
17 Jul 2017 @ 1518 ie wc1h 25m
17 Jul 2017 @ 1353 ns wc1h 44m
17 Jul 2017 @ 1209 ns wc1h 37m
17 Jul 2017 @ 1032 ns wc1h 41m
17 Jul 2017 @ 0851 long3h 6m
17 Jul 2017 @ 0545 ie8h 13m
16 Jul 2017 @ 2132 long3h 16m
16 Jul 2017 @ 1816 long3h 28m
16 Jul 2017 @ 1448 ns wc1h 45m
16 Jul 2017 @ 1303 ie wc1h 32m
16 Jul 2017 @ 1131 ns wc1h 40m
16 Jul 2017 @ 0951 ns wc1h 29m
16 Jul 2017 @ 0822 ie wc1h 49m
16 Jul 2017 @ 0633 ie9h 48m
15 Jul 2017 @ 2045 long1h 39m
15 Jul 2017 @ 1906 long1h 34m
15 Jul 2017 @ 1732 long6h 29m
15 Jul 2017 @ 1103 long1h 31m
15 Jul 2017 @ 0932 ns wc1h 37m
15 Jul 2017 @ 0755 ns wc1h 40m
15 Jul 2017 @ 0615 ie long9h 55m
14 Jul 2017 @ 2020 long1h 31m
14 Jul 2017 @ 1849 long3h 18m
14 Jul 2017 @ 1531 ie wc1h 39m
14 Jul 2017 @ 1352 ie wc5h 55m
14 Jul 2017 @ 0757 wc1h 38m
14 Jul 2017 @ 0619 wc11h 25m
13 Jul 2017 @ 1854 ie wc1h 43m
13 Jul 2017 @ 1711 long1h 35m
13 Jul 2017 @ 1536 ns1h 18m
13 Jul 2017 @ 1418 ie1h 23m
13 Jul 2017 @ 1255 ie1h 37m
13 Jul 2017 @ 1118 ie3h 21m
13 Jul 2017 @ 0757 long14h 27m
12 Jul 2017 @ 1730 ie1h 7m
12 Jul 2017 @ 1623 ie3h 26m
12 Jul 2017 @ 1257 ie3h 11m
12 Jul 2017 @ 0946 long1h 30m
12 Jul 2017 @ 0816 long1h 35m
12 Jul 2017 @ 0641 long13h 0m
11 Jul 2017 @ 1741 long1h 37m
11 Jul 2017 @ 1604 ie wc1h 45m
11 Jul 2017 @ 1419 ie wc3h 18m
11 Jul 2017 @ 1101 ie wc3h 18m
11 Jul 2017 @ 07431h 28m
11 Jul 2017 @ 0615 ie wc10h 1m
10 Jul 2017 @ 2014 long1h 34m
10 Jul 2017 @ 1840 long1h 44m
10 Jul 2017 @ 1656 ie wc1h 38m
10 Jul 2017 @ 1518 ns wc1h 42m
10 Jul 2017 @ 1336 long2h 2m
10 Jul 2017 @ 1134 ns wc2h 50m
10 Jul 2017 @ 0844 long1h 38m
10 Jul 2017 @ 0706 ns long10h 23m
09 Jul 2017 @ 2043 long5h 5m
09 Jul 2017 @ 1538 wc1h 43m
09 Jul 2017 @ 1355 long1h 38m

Interval Statistics

Interval Count100
Min1h 7m
Max14h 27m
Mean3h 19m
Median1h 42m

Latest Notes

Note IDStart TimeEnd TimeEntrantNote
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 --- Joethermop 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
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.
07 Feb 2016 @ 1456 JSJ https://www.flickr.com/photos/jsjgeology/24788829071 Webcam screen capture photo (1 of 3) of Old Faithful Geyser's 2:56 to 3:00 PM eruption on 7 February 2016.
Baseline does not exist.


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