Last Known Eruption
103d 0m ago

Latest Eruptions

Eruption DurationInterval
14 May 2019 @ 1319 ie1y 249d 48m
07 Sep 2017 @ 1231< than a minute10d 23h 20m
27 Aug 2017 @ 13113d 6m
24 Aug 2017 @ 130511d 23h 31m
12 Aug 2017 @ 133458d 19h 46m
14 Jun 2017 @ 17482d 7h 58m
12 Jun 2017 @ 095011d 38m
01 Jun 2017 @ 09121d 23h 43m
30 May 2017 @ 0929237d 23h 12m
04 Oct 2016 @ 10171d 18h 0m
02 Oct 2016 @ 161729m
02 Oct 2016 @ 15482d 2h 49m
30 Sep 2016 @ 125935m
30 Sep 2016 @ 122431m
30 Sep 2016 @ 115328m
30 Sep 2016 @ 112531m
30 Sep 2016 @ 105430m
30 Sep 2016 @ 102415h 12m
29 Sep 2016 @ 191232m
29 Sep 2016 @ 184026m
29 Sep 2016 @ 18145d 6h 23m
24 Sep 2016 @ 115134m
24 Sep 2016 @ 111725m
24 Sep 2016 @ 105235m
24 Sep 2016 @ 101714h 59m
23 Sep 2016 @ 191835m
23 Sep 2016 @ 184329m
23 Sep 2016 @ 181438m
23 Sep 2016 @ 17362h 19m
23 Sep 2016 @ 151725m
23 Sep 2016 @ 145233m
23 Sep 2016 @ 141929m
23 Sep 2016 @ 135034m
23 Sep 2016 @ 131654m
23 Sep 2016 @ 122221h 6m
22 Sep 2016 @ 151657m
22 Sep 2016 @ 141932m
22 Sep 2016 @ 13474d 19h 3m
17 Sep 2016 @ 18442d 1h 6m
15 Sep 2016 @ 173829m
15 Sep 2016 @ 17091h 33m
15 Sep 2016 @ 15361h 1m
15 Sep 2016 @ 14354d 28m
11 Sep 2016 @ 140735s 3d 18h 31m
07 Sep 2016 @ 193659m
07 Sep 2016 @ 183735m
07 Sep 2016 @ 18026h 34m
07 Sep 2016 @ 112832m
07 Sep 2016 @ 10561h 2m
07 Sep 2016 @ 09543d 14h 4m
03 Sep 2016 @ 195031m
03 Sep 2016 @ 191928m
03 Sep 2016 @ 18511h 33m
03 Sep 2016 @ 171828m
03 Sep 2016 @ 16502d 5h 23m
01 Sep 2016 @ 112716h 32m
31 Aug 2016 @ 185528m
31 Aug 2016 @ 18276h 59m
31 Aug 2016 @ 112837m
31 Aug 2016 @ 1051 ie21h 37m
30 Aug 2016 @ 131427m
30 Aug 2016 @ 124726m
30 Aug 2016 @ 12212d 1h 1m
28 Aug 2016 @ 11201d 43m
27 Aug 2016 @ 103737m
27 Aug 2016 @ 100017d 15h 0m
09 Aug 2016 @ 19001d 22h 34m
07 Aug 2016 @ 2026Ml1d 4h 8m
06 Aug 2016 @ 16187d 4h 44m
30 Jul 2016 @ 113438m
30 Jul 2016 @ 105628m
30 Jul 2016 @ 102831m
30 Jul 2016 @ 095729m
30 Jul 2016 @ 092828m
30 Jul 2016 @ 090010d 23h 10m
19 Jul 2016 @ 09506d 12h 56m
12 Jul 2016 @ 205427m
12 Jul 2016 @ 202737m
12 Jul 2016 @ 195022h 39m
11 Jul 2016 @ 211130m
11 Jul 2016 @ 20411h 3m
11 Jul 2016 @ 193827m
11 Jul 2016 @ 19112d 1h 50m
09 Jul 2016 @ 1721<2m 13d 20h 8m
25 Jun 2016 @ 21132d 10h 7m
23 Jun 2016 @ 11062d 22h 41m
20 Jun 2016 @ 122535m
20 Jun 2016 @ 115031m
20 Jun 2016 @ 11191d 16h 53m
18 Jun 2016 @ 18267d 22h 26m
10 Jun 2016 @ 200035m
10 Jun 2016 @ 19252h 59m
10 Jun 2016 @ 16261d 22h 49m
08 Jun 2016 @ 173730m
08 Jun 2016 @ 17071h 1m
08 Jun 2016 @ 16064d 2h 38m
04 Jun 2016 @ 132816h 16m
03 Jun 2016 @ 211232m
03 Jun 2016 @ 204027m
03 Jun 2016 @ 201326m

Interval Statistics

Interval Count100
Min25m
Max1y 249d 48m
Mean10d 17h 56m
Median1h 1m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
10616 16 Oct 2018 @ 1510 --- Tara No signs of reactivation, still inactive.
9048 06 Jul 2018 @ 1305 --- minissa During 3 hours of watching Lone Pine, including a full eruption of LP, the pool of Occasional visible from road did nothing more than intermittently fluctuate as if it might erupt, then quit. It sat for the entire duration at just below the high water mark visible in crater, perhaps 8" below rim of formation. Not sure if this represents dormancy or just severely changed behavior. Pool is still hot based on pretty blue color of water, but orange cyanobacteria easily visible in right-hand runoff channel (seen legally from road)
9033 05 Jul 2018 @ 0708 05 Jul 2018 @ 0715 bhoppe Overflowing from the vents next to the formation for the entire time. In past years, I would typically see it pulsate and erupt from the same level. Lone Pine was full, overflowing, and bubbling.
5890 07 Sep 2017 @ 1608 --- cb leaving the area. hoped to get a closed interval for Occasional but it didn't erupt again. just a bit of boiling around the rim.
4312 14 Jun 2017 @ 1655 14 Jun 2017 @ 1747 Art No eruption for close to an hour of observation
12735 06 Sep 1994 @ 0000 06 Sep 1994 @ 2359 JarnoO ~28m intervals
EntrySourceLinkComment
01 Jun 2016 @ 1808 JSJ https://www.youtube.com/watch?v=33AKP9tI2N4#t=4m10s Clip 7 of this video compilation (time stamp 4:10 to the end) shows Occasional Geyser's 6:08 to 6:09 PM eruption on 1 June 2016.
01 Jun 2016 @ 1732 JSJ https://www.youtube.com/watch?v=33AKP9tI2N4#t=2m18s Clip 6 of this video compilation (time stamp 2:18 to time stamp 4:10) shows Occasional Geyser's 5:32 to 5:34 PM eruption on 1 June 2016.
01 Jun 2016 @ 1706 JSJ https://www.youtube.com/watch?v=33AKP9tI2N4 Clip 1 of this video compilation (beginning to time stamp 0:42) shows Occasional Geyser's 5:06 to 5:07 PM eruption on 1 June 2016.
Baseline does not exist.


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