Last Known Eruption
1d 13h 50m ago

Latest Eruptions

Eruption DurationInterval
21 Jul 2018 @ 2200 ie maj2d 8h 33m
19 Jul 2018 @ 13271h 21m 18h 57m
18 Jul 2018 @ 18301d 10h 15m
17 Jul 2018 @ 08151h 10m 21h 56m
16 Jul 2018 @ 1019 ie4d 2h 13m
12 Jul 2018 @ 080612h 23m
11 Jul 2018 @ 19435d 5h 50m
06 Jul 2018 @ 13535h 37m
06 Jul 2018 @ 081627d 17h 56m
08 Jun 2018 @ 1420 ie2d 1h 52m
06 Jun 2018 @ 1228 maj6d 17h 14m
30 May 2018 @ 1914 ie255d 4h 23m
17 Sep 2017 @ 14511d 2h 18m
16 Sep 2017 @ 12331d 1h 32m
15 Sep 2017 @ 11012h 27m
15 Sep 2017 @ 083420h 33m
14 Sep 2017 @ 120121m
14 Sep 2017 @ 114017h 26m
13 Sep 2017 @ 18141d 7h 58m
12 Sep 2017 @ 101617h 22m
11 Sep 2017 @ 16545d 6h 46m
06 Sep 2017 @ 1008 maj5d 15h 8m
31 Aug 2017 @ 1900 maj1d 9h 8m
30 Aug 2017 @ 095216h 33m
29 Aug 2017 @ 17197h 47m
29 Aug 2017 @ 09326d 20h 37m
22 Aug 2017 @ 1255 maj3h 25m
22 Aug 2017 @ 093015h 32m
21 Aug 2017 @ 175810h 3m
21 Aug 2017 @ 0755 ie21h 39m
20 Aug 2017 @ 10163h 12m
20 Aug 2017 @ 070416h 7m
19 Aug 2017 @ 14571d 37m
18 Aug 2017 @ 14201d 17h 26m
16 Aug 2017 @ 20544d 8h 58m
12 Aug 2017 @ 1156 maj23h 1m
11 Aug 2017 @ 1255 ie2h 26m
11 Aug 2017 @ 10294h 1m
11 Aug 2017 @ 062810h 11m
10 Aug 2017 @ 201710h 43m
10 Aug 2017 @ 09342d 20h 56m
07 Aug 2017 @ 12382d 4h 36m
05 Aug 2017 @ 08022d 12h 13m
02 Aug 2017 @ 1949 ie maj2d 14h 24m
31 Jul 2017 @ 0525 maj1d 9h 46m
29 Jul 2017 @ 19393h 36m
29 Jul 2017 @ 160310h 15m
29 Jul 2017 @ 054815h 54m
28 Jul 2017 @ 135458m 19h 49m
27 Jul 2017 @ 18054h 36m
27 Jul 2017 @ 132953m 5h 8m
27 Jul 2017 @ 08211h 20m 1d 1h 35m
26 Jul 2017 @ 06461d 20h 21m
24 Jul 2017 @ 102516h 54m
23 Jul 2017 @ 17316d 23h 7m
16 Jul 2017 @ 18247d 13h 16m
09 Jul 2017 @ 0508 maj1d 18h 27m
07 Jul 2017 @ 104117h 31m
06 Jul 2017 @ 17109h 47m
06 Jul 2017 @ 07231d 32m
05 Jul 2017 @ 065110h 59m
04 Jul 2017 @ 19522h 30m
04 Jul 2017 @ 17225h 4m
04 Jul 2017 @ 12185h 28m
04 Jul 2017 @ 065012h 15m
03 Jul 2017 @ 1835 ie4h 3m
03 Jul 2017 @ 14326h 35m
03 Jul 2017 @ 07573d 18h 46m
29 Jun 2017 @ 13111d 15m
28 Jun 2017 @ 12561d 34m
27 Jun 2017 @ 12223h 24m
27 Jun 2017 @ 085814h 57m
26 Jun 2017 @ 180123h 31m
25 Jun 2017 @ 18302h 6m
25 Jun 2017 @ 16243h 59m
25 Jun 2017 @ 12252h 56m
25 Jun 2017 @ 09299d 18h 26m
15 Jun 2017 @ 150310d 6h 37m
05 Jun 2017 @ 082617h 55m
04 Jun 2017 @ 1431259d 19h 13m
17 Sep 2016 @ 191811h 20m
17 Sep 2016 @ 075819h 23m
16 Sep 2016 @ 12352h 44m
16 Sep 2016 @ 095116h 30m
15 Sep 2016 @ 17215h 13m
15 Sep 2016 @ 12084d 21h 34m
10 Sep 2016 @ 14345h 18m
10 Sep 2016 @ 091613h 42m
09 Sep 2016 @ 19347h 20m
09 Sep 2016 @ 121423h 25m
08 Sep 2016 @ 12491d 1h 45m
07 Sep 2016 @ 11044d 1h 39m
03 Sep 2016 @ 0925 maj14h 44m
02 Sep 2016 @ 18415d 22h 43m
27 Aug 2016 @ 19581d 9h 21m
26 Aug 2016 @ 10371h 33m 4h 5m
26 Aug 2016 @ 0632 ie3d 18h 30m
22 Aug 2016 @ 1202 maj9d 4h 10m
13 Aug 2016 @ 075210d 11h 45m
02 Aug 2016 @ 20071h 54m

Interval Statistics

Interval Count100
Min21m
Max259d 19h 13m
Mean7d 4h 21m
Median19h 36m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
9149 12 Jul 2018 @ 0806 --- bhoppe River pause at 0818. Splashing in Main Vent.
8367 30 May 2018 @ 1344 --- Janet White River vent on and very small splashing from Fan’s vents. No time for more observations.
6270 11 Sep 2017 @ 0608 --- Graham Garbage this morning but a couple of big splashes from MV 0608 while river on when I returned after being gone for 35m. GV started 0616. AV 0619. Bottom Vent runoff to the river by 0608. Water levels were pretty good until 0629. RV off 0708 so it was on at least an hour.
4371 27 Jun 2017 @ 1937 --- Kitt B River off with at least 4 splashes in Main. Gold on at 2001. I relayed several calls, but didn't write anything until I (Kitt) got there. Water levels were variable to poor with Angle almost the biggest. (Will delete this when Chris puts his info in.)
3070 15 Jun 2016 @ 0717 --- JimS River off 0717. Splashing began 0732. River on 0745, Gold 0753, Angle 0756. Declared dead 0810.
1786 23 Jun 2015 @ 1630 23 Jun 2015 @ 1710 bhoppe Probably arrived during a River pause, runoff from minor vents was totally dry. Main Vent was splashing upon arrival. River pause at 1641 (d=5m). Water was visible in Upper Mortar throughout the pause. River on 1646, Gold on at 1656, Angle on at 1702. Water levels never really looked good.
776 21 Apr 2013 @ 1156 21 Apr 2013 @ 1325 WillBoekel
  • 11:56 Bottom spritzing
  • 11:58:10 light steam in main
  • 12:01 Upper Mortar steam -few sec
  • 12:02:20 small splashes in lower mortar
  • 12:02 River On
  • 12:03:50 High on
  • 12:08 Gold on
  • 12:09 Angle on
  • 12:27 Upper Mortar steam
  • 12:29 River off-Angle continue
  • 12:31 Bottom spritzing
  • 12:33 River on
  • 12:34 High on then Gold also
  • 12:35 Gold cough
  • 12:39 light steam in main
  • 12:40 small splashes in Lower Mortar
  • 12:41 River on
  • 12:41 High on
  • 12:42 light steam in main
  • 12:44:45 Gold on
  • 12:49 Angle on
  • 12:50 Bottom vent now quiet
  • 13:00 small grumble in Upper Mortar
  • 13:03 All vents in system off
  • 13:04 Angle blipping
  • 13:05 Angle increase in strength
  • 13:06 Bottom spritzing
  • 13:16 River on
  • 13:18:42 Gold and high on-Gold first by a second or two
  • 13:25 Angle on
  • 26 13 Sep 2011 @ 1300 --- Graham Approx 1300 river pause and splashing in Main vent
    EntrySourceLinkComment
    02 Jul 2016 @ 0951 JSJ https://www.youtube.com/watch?v=dqqb0EG5ODE#t=6m15s Clips 13-19 of this video compilation (time stamp 6:15 to time stamp 11:06) show Fan Geyser's 9:51 AM-onward event cycle on 2 July 2016.
    04 Jul 2016 @ 1315 JSJ https://www.youtube.com/watch?v=dqqb0EG5ODE#t=11m06s Clips 20-23 of this video compilation (time stamp 11:06 to time stamp 12:39) show Fan Geyser's 1:15 to 2:22 PM event cycle on 4 July 2016.
    Baseline does not exist.


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