Last Known Eruption
1d 16h 26m ago

Latest Eruptions

Eruption DurationInterval
16 Aug 2018 @ 0842 wc long2m 42s 6h 0m
16 Aug 2018 @ 0242 ?2d 30m
14 Aug 2018 @ 0212 ?1h 30m
14 Aug 2018 @ 0042 ?34d 14h 0m
10 Jul 2018 @ 1042 ? wc2m 42s 81d 22h 37m
19 Apr 2018 @ 1205 wc3h 0m
19 Apr 2018 @ 0905 ? wc1h 45m
19 Apr 2018 @ 0720 ? wc2h 5m
19 Apr 2018 @ 05153d 1h 15m
16 Apr 2018 @ 0400 ? ie wc5d 16h 15m
10 Apr 2018 @ 1145 ? ie wc2d 7h 25m
08 Apr 2018 @ 0420 wc long1d 22h 18m
06 Apr 2018 @ 0602 wc2h 22m
06 Apr 2018 @ 0340 wc1d 18h 35m
04 Apr 2018 @ 09051d 12h 23m
02 Apr 2018 @ 20421h 0m
02 Apr 2018 @ 19421h 0m
02 Apr 2018 @ 18424d 22h 56m
28 Mar 2018 @ 1946 long12h 51m
28 Mar 2018 @ 0655 ?1h 55m
28 Mar 2018 @ 0500 ?1h 18m
28 Mar 2018 @ 0342 ?1h 0m
28 Mar 2018 @ 0242 ?1h 12m
28 Mar 2018 @ 0130 ?2h 55m
27 Mar 2018 @ 2235 ?2h 46m
27 Mar 2018 @ 1949 ?1d 10h 39m
26 Mar 2018 @ 0910 wc1h 37m
26 Mar 2018 @ 0733 wc1h 24m
26 Mar 2018 @ 0609 wc1h 44m
26 Mar 2018 @ 0425 wc1h 26m
26 Mar 2018 @ 0259 wc1h 26m
26 Mar 2018 @ 0133 wc1h 32m
26 Mar 2018 @ 0001 wc1h 5m
25 Mar 2018 @ 2256 wc1h 49m
25 Mar 2018 @ 2107 wc1h 34m
25 Mar 2018 @ 1933 wc1h 32m
25 Mar 2018 @ 1801 wc1h 36m
25 Mar 2018 @ 1625 wc long1h 27m
25 Mar 2018 @ 1458 wc long1h 36m
25 Mar 2018 @ 1322 wc long1h 35m
25 Mar 2018 @ 1147 wc long54m
25 Mar 2018 @ 1053 wc short1h 43m
25 Mar 2018 @ 0910 wc long1h 0m
25 Mar 2018 @ 0810 wc short1h 35m
25 Mar 2018 @ 0635 wc long1h 39m
25 Mar 2018 @ 0456 wc1h 26m
25 Mar 2018 @ 0330 wc1h 39m
25 Mar 2018 @ 0151 wc long1h 27m
25 Mar 2018 @ 0024 wc1h 35m
24 Mar 2018 @ 2249 wc1h 32m
24 Mar 2018 @ 2117 wc1h 31m
24 Mar 2018 @ 1946 ie wc1h 31m
24 Mar 2018 @ 1815 wc long1h 37m
24 Mar 2018 @ 1638 wc long1h 25m
24 Mar 2018 @ 1513 wc long1h 35m
24 Mar 2018 @ 1338 wc long1h 45m
24 Mar 2018 @ 1153 ie wc long1h 27m
24 Mar 2018 @ 1026 ie wc1h 40m
24 Mar 2018 @ 0846 wc1h 16m
24 Mar 2018 @ 0730 wc long1h 37m
24 Mar 2018 @ 0553 wc1h 33m
24 Mar 2018 @ 0420 wc1h 42m
24 Mar 2018 @ 0238 wc1h 26m
24 Mar 2018 @ 0112 wc1h 31m
23 Mar 2018 @ 2341 wc1h 43m
23 Mar 2018 @ 2158 wc1h 33m
23 Mar 2018 @ 2025 wc1h 33m
23 Mar 2018 @ 1852 wc long1h 32m
23 Mar 2018 @ 1720 wc long1h 25m
23 Mar 2018 @ 1555 wc short1h 34m
23 Mar 2018 @ 1421 wc long1h 34m
23 Mar 2018 @ 1247 wc long1h 31m
23 Mar 2018 @ 1116 wc long1h 41m
23 Mar 2018 @ 0935 wc long1h 2m
23 Mar 2018 @ 0833 wc short1h 36m
23 Mar 2018 @ 0657 wc long1h 33m
23 Mar 2018 @ 0524 wc long1h 29m
23 Mar 2018 @ 0355 wc long1h 37m
23 Mar 2018 @ 0218 wc long1h 47m
23 Mar 2018 @ 0031 wc1h 19m
22 Mar 2018 @ 2312 wc1h 36m
22 Mar 2018 @ 2136 wc1h 35m
22 Mar 2018 @ 2001 wc long1h 38m
22 Mar 2018 @ 1823 wc long1h 41m
22 Mar 2018 @ 1642 wc long1h 26m
22 Mar 2018 @ 1516 wc long1h 27m
22 Mar 2018 @ 1349 wc long1h 41m
22 Mar 2018 @ 1208 wc long1h 21m
22 Mar 2018 @ 1047 wc long1h 40m
22 Mar 2018 @ 0907 wc long1h 38m
22 Mar 2018 @ 0729 wc1h 30m
22 Mar 2018 @ 0559 wc1h 29m
22 Mar 2018 @ 0430 wc1h 39m
22 Mar 2018 @ 0251 wc long1h 40m
22 Mar 2018 @ 0111 wc long1h 28m
21 Mar 2018 @ 2343 wc1h 34m
21 Mar 2018 @ 2209 wc1h 31m
21 Mar 2018 @ 2038 wc1h 42m
21 Mar 2018 @ 1856 ns wc long1h 33m
21 Mar 2018 @ 1723 wc1h 31m

Interval Statistics

Interval Count100
Min54m
Max81d 22h 37m
Mean1d 11h 26m
Median1h 35m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
7979 17 Apr 2018 @ 0930 --- ThomasR Test Note!
7962 28 Mar 2018 @ 0630 --- ThomasR Test note
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
16 Aug 2018 @ 0842 ThomasR https://www.flickr.com/photos/yellowstonenps/43316965314/ An adorable pika to go with the geyser!
19 Apr 2018 @ 1205 Michael https://www.wikipedia.org Test attachment. 🌐
02 May 2018 @ 0042 ThomasR https://youtube.com/watch?id=uv65rtez Test attachment.
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.
Baseline does not exist.


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