Last Known Eruption
7m ago
Predicted Next Eruption
Today at 1428 ± 13 minutes

Latest Eruptions

EruptionDurationInterval
22 Sep 2017 @ 1251 wc long~4m 41s 59m
22 Sep 2017 @ 1152 wc short1h 44m
22 Sep 2017 @ 1008 wc1h 30m
22 Sep 2017 @ 0838 wc1h 52m
22 Sep 2017 @ 0646 wc1h 39m
22 Sep 2017 @ 0507 wc long1h 38m
22 Sep 2017 @ 0329 wc long1h 13m
22 Sep 2017 @ 0216 wc4h 35m
21 Sep 2017 @ 2141 wc1h 38m
21 Sep 2017 @ 2003 wc long1h 39m
21 Sep 2017 @ 1824 wc long1h 39m
21 Sep 2017 @ 1645 wc long1h 7m
21 Sep 2017 @ 1538 wc short1h 43m
21 Sep 2017 @ 1355 wc long1h 37m
21 Sep 2017 @ 1218 wc long1h 41m
21 Sep 2017 @ 1037 wc long1h 1m
21 Sep 2017 @ 0936 wc short1h 31m
21 Sep 2017 @ 0805 wc1h 38m
21 Sep 2017 @ 0627 wc1h 44m
21 Sep 2017 @ 0443 wc1h 4m
21 Sep 2017 @ 0339 wc short1h 36m
21 Sep 2017 @ 0203 wc long1h 40m
21 Sep 2017 @ 0023 wc long1h 26m
20 Sep 2017 @ 2257 wc1h 45m
20 Sep 2017 @ 2112 wc long1h 17m
20 Sep 2017 @ 1955 wc short1h 35m
20 Sep 2017 @ 1820 long1h 21m
20 Sep 2017 @ 1659 wc short1h 36m
20 Sep 2017 @ 1523 wc long1h 41m
20 Sep 2017 @ 1342 wc long1h 36m
20 Sep 2017 @ 1206 wc long1h 35m
20 Sep 2017 @ 1031 wc long~3m 58s 1h 32m
20 Sep 2017 @ 0859 wc long~4m 22s 1h 5m
20 Sep 2017 @ 0754 wc short1h 42m
20 Sep 2017 @ 0612 wc long1h 50m
20 Sep 2017 @ 0422 wc long1h 42m
20 Sep 2017 @ 0240 wc long1h 35m
20 Sep 2017 @ 0105 wc long1h 42m
19 Sep 2017 @ 2323 wc long1h 44m
19 Sep 2017 @ 2139 wc long1h 43m
19 Sep 2017 @ 1956 wc1h 29m
19 Sep 2017 @ 1827 wc long1h 35m
19 Sep 2017 @ 1652 wc1h 31m
19 Sep 2017 @ 1521 wc long1h 32m
19 Sep 2017 @ 1349 wc1h 56m
19 Sep 2017 @ 1153 wc long1h 14m
19 Sep 2017 @ 1039 wc short1h 35m
19 Sep 2017 @ 0904 wc1h 8m
19 Sep 2017 @ 0756 wc short1h 42m
19 Sep 2017 @ 0614 wc long1h 26m
19 Sep 2017 @ 0448 wc long1h 48m
19 Sep 2017 @ 0300 wc long1h 40m
19 Sep 2017 @ 0120 wc long1h 41m
18 Sep 2017 @ 2339 wc long1h 40m
18 Sep 2017 @ 2159 wc long1h 11m
18 Sep 2017 @ 2048 wc short1h 43m
18 Sep 2017 @ 1905 wc long1h 7m
18 Sep 2017 @ 1758 wc short1h 38m
18 Sep 2017 @ 1620 wc long1h 29m
18 Sep 2017 @ 1451 wc long1h 44m
18 Sep 2017 @ 1307 wc long1h 44m
18 Sep 2017 @ 1123 wc long1h 46m
18 Sep 2017 @ 0937 wc long1h 8m
18 Sep 2017 @ 0829 wc short1h 48m
18 Sep 2017 @ 0641 long1h 2m
18 Sep 2017 @ 0539 wc short1h 33m
18 Sep 2017 @ 0406 wc long1h 48m
18 Sep 2017 @ 0218 wc long1h 32m
18 Sep 2017 @ 0046 wc1h 36m
17 Sep 2017 @ 2310 wc1h 40m
17 Sep 2017 @ 2130 wc1h 28m
17 Sep 2017 @ 2002 wc long1h 39m
17 Sep 2017 @ 1823 long1h 55m
17 Sep 2017 @ 1628 wc long1h 3m
17 Sep 2017 @ 1525 wc short1h 41m
17 Sep 2017 @ 1344 wc long1h 12m
17 Sep 2017 @ 1232 wc short1h 40m
17 Sep 2017 @ 1052 wc long1h 12m
17 Sep 2017 @ 0940 wc1h 36m
17 Sep 2017 @ 0804 wc long1h 40m
17 Sep 2017 @ 0624 wc long1h 38m
17 Sep 2017 @ 0446 wc1h 34m
17 Sep 2017 @ 0312 wc long1h 37m
17 Sep 2017 @ 0135 wc long1h 17m
17 Sep 2017 @ 0018 wc1h 39m
16 Sep 2017 @ 2239 wc1h 32m
16 Sep 2017 @ 2107 wc1h 46m
16 Sep 2017 @ 1921 wc long1h 6m
16 Sep 2017 @ 1815 wc short1h 26m
16 Sep 2017 @ 1649 wc long1h 45m
16 Sep 2017 @ 1504 wc long1h 35m
16 Sep 2017 @ 1329 wc long~3m 50s 1h 47m
16 Sep 2017 @ 1142 wc long~4m 5s 1h 44m
16 Sep 2017 @ 0958 long1h 18m
16 Sep 2017 @ 0840 wc short1h 40m
16 Sep 2017 @ 0700 wc long~3m 49s 1h 27m
16 Sep 2017 @ 0533 wc long1h 37m
16 Sep 2017 @ 0356 wc1h 39m
16 Sep 2017 @ 0217 wc1h 43m
16 Sep 2017 @ 0034 wc1h 39m

Interval Statistics

Interval Count100
Min59m
Max4h 35m
Mean1h 34m
Median1h 37m

Latest Notes

Note IDStart TimeEnd TimeEntrantNote
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 --- 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
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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