Last Known Eruption
1h 14m ago
Predicted Next Eruption
Today at 0915 ± 13 minutes

Latest Eruptions

EruptionDurationInterval
26 May 2017 @ 0738 wc long1h 44m
26 May 2017 @ 0554 wc long~4m 0s 1h 31m
26 May 2017 @ 0423 wc long~4m 13s 1h 41m
26 May 2017 @ 0242 wc1h 44m
26 May 2017 @ 0058 wc1h 42m
25 May 2017 @ 2316 wc1h 34m
25 May 2017 @ 2142 wc1h 32m
25 May 2017 @ 2010 wc1h 52m
25 May 2017 @ 1818 wc long1h 47m
25 May 2017 @ 1631 wc long1h 24m
25 May 2017 @ 1507 wc long1h 36m
25 May 2017 @ 1331 wc long1h 51m
25 May 2017 @ 1140 wc long1h 30m
25 May 2017 @ 1010 wc long1h 54m
25 May 2017 @ 0816 wc long1h 35m
25 May 2017 @ 0641 wc long1h 41m
25 May 2017 @ 0500 wc long1h 38m
25 May 2017 @ 0322 wc1h 42m
25 May 2017 @ 0140 wc1h 29m
25 May 2017 @ 0011 wc1h 43m
24 May 2017 @ 2228 wc1h 27m
24 May 2017 @ 2101 wc1h 38m
24 May 2017 @ 1923 wc1h 36m
24 May 2017 @ 1747 wc1h 44m
24 May 2017 @ 1603 wc1h 40m
24 May 2017 @ 1423 long1h 40m
24 May 2017 @ 1243 wc1h 41m
24 May 2017 @ 1102 wc1h 36m
24 May 2017 @ 0926 wc long1h 38m
24 May 2017 @ 0748 wc long~4m 25s 1h 45m
24 May 2017 @ 0603 wc long1h 43m
24 May 2017 @ 0420 wc1h 41m
24 May 2017 @ 0239 wc1h 49m
24 May 2017 @ 0050 wc long2h 0m
23 May 2017 @ 2250 wc1h 35m
23 May 2017 @ 2115 wc1h 45m
23 May 2017 @ 1930 wc1h 39m
23 May 2017 @ 1751 wc1h 45m
23 May 2017 @ 1606 wc long1h 35m
23 May 2017 @ 1431 wc long1h 16m
23 May 2017 @ 1315 wc long1h 45m
23 May 2017 @ 1130 wc long59m
23 May 2017 @ 1031 wc short2h 1m
23 May 2017 @ 0830 long1h 37m
23 May 2017 @ 0653 wc long1h 35m
23 May 2017 @ 0518 wc1h 34m
23 May 2017 @ 0344 wc1h 40m
23 May 2017 @ 0204 wc1h 30m
23 May 2017 @ 0034 wc1h 39m
22 May 2017 @ 2255 wc1h 36m
22 May 2017 @ 2119 wc1h 56m
22 May 2017 @ 1923 wc1h 29m
22 May 2017 @ 1754 wc1h 41m
22 May 2017 @ 1613 wc1h 34m
22 May 2017 @ 1439 wc long1h 43m
22 May 2017 @ 1256 wc long1h 1m
22 May 2017 @ 1155 wc long1h 48m
22 May 2017 @ 1007 wc long1h 41m
22 May 2017 @ 0826 wc long1h 45m
22 May 2017 @ 0641 wc long1h 26m
22 May 2017 @ 0515 wc1h 40m
22 May 2017 @ 0335 wc1h 40m
22 May 2017 @ 0155 wc1h 36m
22 May 2017 @ 0019 wc1h 35m
21 May 2017 @ 2244 wc1h 40m
21 May 2017 @ 2104 wc1h 30m
21 May 2017 @ 1934 wc long1h 46m
21 May 2017 @ 1748 wc long1h 36m
21 May 2017 @ 1612 wc long1h 32m
21 May 2017 @ 1440 wc long1h 42m
21 May 2017 @ 1258 wc1h 38m
21 May 2017 @ 1120 wc1h 42m
21 May 2017 @ 0938 long1h 28m
21 May 2017 @ 0810 long1h 46m
21 May 2017 @ 0624 wc long1h 38m
21 May 2017 @ 0446 wc long1h 45m
21 May 2017 @ 0301 long1h 34m
21 May 2017 @ 0127 wc1h 36m
20 May 2017 @ 2351 wc1h 38m
20 May 2017 @ 2213 wc1h 40m
20 May 2017 @ 2033 long1h 47m
20 May 2017 @ 1846 wc long1h 44m
20 May 2017 @ 1702 wc long1h 44m
20 May 2017 @ 1518 long1h 36m
20 May 2017 @ 1342 long1h 50m
20 May 2017 @ 1152 wc1h 31m
20 May 2017 @ 1021 wc long1h 40m
20 May 2017 @ 0841 wc1h 13m
20 May 2017 @ 0728 wc1h 36m
20 May 2017 @ 0552 wc1h 38m
20 May 2017 @ 0414 wc1h 26m
20 May 2017 @ 0248 wc1h 36m
20 May 2017 @ 0112 wc1h 41m
19 May 2017 @ 2331 wc1h 36m
19 May 2017 @ 2155 wc1h 33m
19 May 2017 @ 2022 wc long1h 49m
19 May 2017 @ 1833 wc long1h 27m
19 May 2017 @ 1706 wc long3m 41s 1h 43m
19 May 2017 @ 1523 wc long1h 36m
19 May 2017 @ 1347 wc long1h 31m

Interval Statistics

Interval Count100
Min59m
Max2h 1m
Mean1h 38m
Median1h 38m

Latest Notes

Note IDStart TimeEnd TimeEntrantNote
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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