Last Known Eruption
1y 31d 11h 10m ago

Latest Eruptions

Eruption DurationInterval
16 Jul 2018 @ 183217y 338d 9h 42m
16 Aug 2000 @ 08502m 5d 15h 50m
10 Aug 2000 @ 17008h 10m
10 Aug 2000 @ 08502m 6d 0m
04 Aug 2000 @ 0850 ie9d 18h 8m
25 Jul 2000 @ 144217y 34d 18h 10m
25 Jun 1983 @ 2031:474m 3s 9m 5s
25 Jun 1983 @ 2022:424m 21s 17m 14s
25 Jun 1983 @ 2005:284m 39s 7m 38s
25 Jun 1983 @ 1957:503m 31s 16m 40s
25 Jun 1983 @ 1941:103m 44s 16m 12s
25 Jun 1983 @ 1924:584m 4s 16m 28s
25 Jun 1983 @ 1908:30~3m 59s 22m
25 Jun 1983 @ 18464m 11s 11m
25 Jun 1983 @ 1834:084m 4s

Interval Statistics

Interval Count14
Min7m
Max17y 338d 9h 42m
Mean2y 184d 15h 25m
Median19m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
13256 14 Aug 2019 @ 1629 --- cb pool is back up to typical water level. (is there such a thing at Norris?) Water is just under the "nose" on the East edge by about 2.5". It is clear with boiling on the North edge, some by the nose. nothing in the alcove.
13123 09 Aug 2019 @ 0810 --- cb water level has come up quite a bit. Rocks in the pool on the south end are almost covered. 10 - 12" below the peninsula rock on the east rim. Vigorous boil on the north edge. Alcove has 2" of water covering the shelves with occasional 2" bubble breaking the surface. color is emerald green and clear.
13087 07 Aug 2019 @ 0747 --- bbev Boiling vigorously in far side of pool. 2-3' below edge of pool. Root pool low and boiling.
13077 06 Aug 2019 @ 1735 --- cb Very VERY low. 3 - 4' below the hight water mark and a vigorous boil to 3' from the north end of the pool. No water observed in the alcove (behind the broken crater rim) until walking back from Tantalus. Water was filling the alcove and erupting to 1'.
13015 04 Aug 2019 @ 0741 --- cb pool is crazy low! down 3' from high water mark and a foot below the peninsula rock. Rocks in the pool to the NE & S ends of the pool are completely exposed. Vigorous boil to 2' on north end and the alcove has little water but has a 6" boil coming up from behind the broken chunks of rim.
12993 03 Aug 2019 @ 0821 --- cb Water level is down 6" from the tip of the peninsula on the west end
12963 02 Aug 2019 @ 1745 --- bbev Pool has dropped another 2-3" from this morning. Still boiling and clear.
12976 02 Aug 2019 @ 0931 --- MAB per cb not as full as yesterday. 3 areas of boil. At this time Root Pool was 2 connected pools with light boil in the northern one
12951 02 Aug 2019 @ 0806 --- bbev Still clear and boiling in several areas. Water level has dropped to expose back shelf, maybe 4" lower than yesterday evening.
12930 01 Aug 2019 @ 1748 --- bbev Vigorously boiling in east, north, and west areas of spring
12922 01 Aug 2019 @ 1020 --- cb pool has dropped 4". Vigorously boiling in the alcove, the N edge and the E peninsule areas.
12887 31 Jul 2019 @ 0834 --- cb pool is high with boiling on the south end by the pointed rock reaching 6". Boiling on the north end of the pool (toward SB runoff channel) is vigorous and has a 4 point boil. Small bubbles in the pool, alcove behind the broken off crater rim.
12846 28 Jul 2019 @ 0733 --- ypcaribou Full, no splashing, has a yellow tinge below water.
12809 26 Jul 2019 @ 1015 --- cb pool is high and covers the point on the south end
12097 03 Jul 2019 @ 0950 --- cb water level in the pool has risen 3".
11856 17 Jun 2019 @ 0900 --- udo Clear. Water level is above rim within the crater, higher than I've seen before.
11820 16 Jun 2019 @ 0830 --- cb water level remains high, just reaching the sandy berms on the north and south rims. Some areas boiling on the north end.
11354 26 May 2019 @ 0647 --- ypcaribou Quite full, just below top of scalloped rim on right side, water surrounding rock on left from collapsed edge
11310 22 May 2019 @ 1614 --- cb Pool is VERY high. Water is covering the ledge on the S end of the pool by 2" of water.
11235 13 May 2019 @ 1106 --- MAB Higher water level than May 02 - about 6 inches up the west rock with the cracks. Good bubbling from east and north vents.
11145 02 May 2019 @ 1034 --- MAB almost full - water at bottom of west rock. south rock submerged
11056 23 Apr 2019 @ 1045 --- MAB water level up 8 in since 20th
11021 20 Apr 2019 @ 1036 --- MAB Low water, vigorous splashing from the north vent.
9971 31 Aug 2018 @ 1019 --- MAB Water level is up, now covering the south-center rock. Water also visible in west vent area below the collapsed crater shelf.
9834 22 Aug 2018 @ 1839 --- cb water level is almost covering the center rocks and is high and boiling in the side feature.
9619 10 Aug 2018 @ 1328 --- MAB Low clear water, up a few inches since last sighting. Vigorous splashes from north vent.
9384 01 Aug 2018 @ 0943 --- MAB More water than my last visit - east side maybe 8-10" at its deepest; no water over the south-center rock; no water on west side. North vent splashing 1-2', grumbles and water noises from west vent but no water visible.
9303 26 Jul 2018 @ 1535 --- MAB LOW water. Water only present in the lower reaches of north and east side of the entire basin. West side is entirely dry. Clear water splashing 12-18" from the northerly vent.
9129 11 Jul 2018 @ 0912 --- Tara Down about 3 feet from rim and boiling and bursting to about 1 foor in north end of crater.
4783 04 Aug 2000 @ 0850 04 Aug 2000 @ 1000 research-mab 08/04/2000 Crater Spring 0850-1000 3’-6’ eruptions
4788 02 Aug 1987 @ 1800 --- research-mab 8/2/1987 Crater Spring on the trail past Echinus – is erupting 2-3 feet high, not continually.
4841 02 Aug 1983 @ 1800 --- research-mab 8/2/1983 Marker at Crater Spring still in place so definitely dormant. Yellow Funnel still clear and overflowing. Blue drained.
4978 13 Oct 1979 @ 1800 --- research-mab 10/13/1979 Crater Spring was periodically throwing grey water across the trail this afternoon. Bursts were hitting out 6 to 8 feet. I moved the logs marking the trail back 5 feet. The water level in the pool itself was the lowest I have seen.
No attachments for this geyser.
Baseline does not exist.


All data is shown in US/Mountain timezone unless specified otherwise.

GeyserTimes.org is not affiliated with the National Park Service, but it is "for the benefit and enjoyment of the people".

If you have any questions or comments please contact: webmaster@geysertimes.org

Support open geyser data: Patreon Page

© Copyright 2011-2019

Facebook Page Telegram Channel Get it on Google Play Download on the App Store

Google Play and the Google Play logo are trademarks of Google LLC.

Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc., registered in the U.S. and other countries.