Last Known Eruption
50d 2m ago

Latest Eruptions

Eruption DurationInterval
28 Apr 2024 @ 1132 ie3d 23h 34m
24 Apr 2024 @ 1158 ie110d 20h 17m
04 Jan 2024 @ 1441198d 3h 10m
20 Jun 2023 @ 12316m
20 Jun 2023 @ 12258m
20 Jun 2023 @ 121710m
20 Jun 2023 @ 120715m
20 Jun 2023 @ 11529m
20 Jun 2023 @ 1143 ie20m
20 Jun 2023 @ 11231m 23s 19m
20 Jun 2023 @ 1104~1m 30s 19m
20 Jun 2023 @ 1045~1m 32s 9m
20 Jun 2023 @ 1036~1m 30s 18m
20 Jun 2023 @ 10182m 10s 12m
20 Jun 2023 @ 10061m 42s 8m
20 Jun 2023 @ 0958<2m 12m
20 Jun 2023 @ 0946<2m 13m
20 Jun 2023 @ 09331m 50s 11m
20 Jun 2023 @ 09221m 56s 9m
20 Jun 2023 @ 09131m 39s 15m
20 Jun 2023 @ 0858~2m 14m
20 Jun 2023 @ 08441m 51s 10m
20 Jun 2023 @ 0834~1m 10m
20 Jun 2023 @ 0824~2m 10m
20 Jun 2023 @ 081427d 20h 42m
23 May 2023 @ 1132 ie16m
23 May 2023 @ 1116 ie8m
23 May 2023 @ 1108 ie32m
23 May 2023 @ 1036 ie1d 23h 23m
21 May 2023 @ 1113 ie290d 23h 41m
03 Aug 2022 @ 1132 ie44d 37m
20 Jun 2022 @ 1055 ie53d 1m
28 Apr 2022 @ 1054 ie178d 23h 13m
31 Oct 2021 @ 11411m 106d 23h 55m
16 Jul 2021 @ 114625m
16 Jul 2021 @ 112115m
16 Jul 2021 @ 1106 ie12m
16 Jul 2021 @ 1054 ie24m
16 Jul 2021 @ 1030 ie16m
16 Jul 2021 @ 1014 ie22m
16 Jul 2021 @ 0952 ie8m
16 Jul 2021 @ 094422m
16 Jul 2021 @ 092222m
16 Jul 2021 @ 090022m
16 Jul 2021 @ 08381d 15h 23m
14 Jul 2021 @ 17151d 23h 54m
12 Jul 2021 @ 1721 ie13m
12 Jul 2021 @ 1708 ie54m
12 Jul 2021 @ 161419m
12 Jul 2021 @ 1555 ie23m
12 Jul 2021 @ 1532 ie10m
12 Jul 2021 @ 1522 ie1h 33m
12 Jul 2021 @ 1349 ie1h 18m
12 Jul 2021 @ 1231 ns23m
12 Jul 2021 @ 1208 ns11m
12 Jul 2021 @ 1157 ie58m
12 Jul 2021 @ 1059 ns4d 20h 32m
07 Jul 2021 @ 1427 ns56m
07 Jul 2021 @ 1331 ns23m
07 Jul 2021 @ 130830m
07 Jul 2021 @ 1238 ie1h 23m
07 Jul 2021 @ 1115 ns11m
07 Jul 2021 @ 1104 ie24m
07 Jul 2021 @ 1040 ie33m
07 Jul 2021 @ 100710m
07 Jul 2021 @ 0957 ns21m
07 Jul 2021 @ 0936 ns16h 23m
06 Jul 2021 @ 1713 ie21m
06 Jul 2021 @ 1652 ie67d 3h 36m
30 Apr 2021 @ 131622h 50m
29 Apr 2021 @ 14268m
29 Apr 2021 @ 141848m
29 Apr 2021 @ 1330199d 3h 37m
12 Oct 2020 @ 0953 ie1d 19h 10m
10 Oct 2020 @ 144315m
10 Oct 2020 @ 142814m
10 Oct 2020 @ 1414 ns17m
10 Oct 2020 @ 1357 ie30m
10 Oct 2020 @ 1327 ie3d 22h 40m
06 Oct 2020 @ 1447 ie43m
06 Oct 2020 @ 1404 ie16m
06 Oct 2020 @ 1348 ns9d 22h 11m
26 Sep 2020 @ 1537 ie12m
26 Sep 2020 @ 152511m
26 Sep 2020 @ 151418m
26 Sep 2020 @ 14565m
26 Sep 2020 @ 1451 ie12m
26 Sep 2020 @ 143916m
26 Sep 2020 @ 14235m
26 Sep 2020 @ 1418 ie2d 20h 44m
23 Sep 2020 @ 17342d 1h 18m
21 Sep 2020 @ 1616 ie15m
21 Sep 2020 @ 160117m
21 Sep 2020 @ 1544 ie23h 51m
20 Sep 2020 @ 155313m
20 Sep 2020 @ 154010m
20 Sep 2020 @ 15309m
20 Sep 2020 @ 152112m
20 Sep 2020 @ 15098m
20 Sep 2020 @ 1501 ie6d 2h 6m

Interval Statistics

Interval Count100
Min5m
Max290d 23h 41m
Mean13d 5h 15m
Median19m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
33734 02 Jan 2024 @ 1320 --- JR Black Growler (area) has been thumping every few minutes for a few weeks. A deep bass thump can be heard as far away as at the museum. This thump is followed by a push of steam for a few seconds and usually a bump in activity with Ledge.
28339 17 Sep 2023 @ 0900 17 Sep 2023 @ 1200 SantaFe108 Erupting frequently with water.
26552 20 Jun 2023 @ 0814 20 Jun 2023 @ 1231 SantaFe108 All eruption intervals are closed during this period.
25721 23 May 2023 @ 1155 --- cb Continued throught my sit with frequent eruptions; short durations with very short intervals.
24509 28 Oct 2022 @ 1841 --- MAB splashy when I walked by
29069 15 Jun 2022 @ 1003 --- research-mab 6/15/2022 Black Growler 1003 (spitting water)
20275 03 Nov 2021 @ 0824 --- MAB hollow roar w no water - quieted to little noise and less ateam during the day with a few resurging episodes of heavy steam
18886 10 Aug 2021 @ 1049 --- cb I've seen Black Growler steaming a few times but no water seen from the vent.
18533 19 Jul 2021 @ 1700 19 Jul 2021 @ 1900 nails Periodically increasing steam output. No water splashing. Ledge is louder when Black Growler is steaming.
29512 11 Jul 2014 @ 1200 --- research-mab 7/11/2014 Some changes taking place in the NGB this season.- no time noted - Porcelain Basin - The vent on the map labled [sic] Black Growler has been erupting this year. The water has been reaching about 4 feet.
29837 03 Mar 2001 @ 1200 --- research-mab 3/03/01 - no time noted - Basinwide disturbance is going on...Black Growler temp is down to 92.9C. It has built about an 8 ft ice cornice at the north side.
30336 07 Jun 1992 @ 1200 --- research-mab June 7, 1992 - no time noted - Black Growler is noisy and active.
30537 23 Jun 1991 @ 1200 --- research-mab 6/23/91 - no time noted Black Growler Fumerole remains loud and active.
31198 15 Jan 1982 @ 1200 --- research-mab January 15th, 1982 - no time noted - Son of Black Growler, or Descendent Fumerole rolling steam with Ventura Effect. Ice formation surrounding it prevented me from getting an accurate temp.
31582 27 Nov 1981 @ 1200 --- research-mab Nov 27th 1981 - no time noted - Son of Black Growler (Heir of…) 205° Steam is roaring out of it & it is quite difficult to get an accurate temp. Tied the thermometer to the stick & braced myself. Ventura Effect.
31733 06 Sep 1980 @ 1200 --- research-mab Sat Sept 6 1980 - no time noted - Son of Black Growler – Very powerful steam with fine water drops, lots of silica gel around 203°F
31688 05 Aug 1980 @ 1200 --- research-mab Aug 5, 1980 - no time noted - Decedent [sic] of Black Growler 202°
31612 08 Jun 1980 @ 1200 --- research-mab June 8 1980 - no time noted - Son of Black Growler (Descendent? Fumerole) – Broke a brand new thermometer (son of a @#$#!) Spraying considerable water with a forceful steam. Up to 5cm of silica gel deposited to the west of the oriface. [sic] Temp.l 195ºF- may be low due to inability of keeping the thermometer in the vent.
31987 27 Sep 1979 @ 1200 --- research-mab September 27 1979 - no time noted - Descendent Fumerole – 201ºF – more powerful than last week
31948 20 Sep 1979 @ 1800 --- research-mab Thursday Sept 20 1979 - Disturbance check after 1730 - Descendent or Heir of Black Growlers steam vent – in heavier steam than normal which suggests interconnection with the Ledge complex – 200ºF
31928 11 Sep 1979 @ 1200 --- research-mab Sept 11 1979 -no time noted - Temps taken in Porcelain this AM - Descendant Fumerole 203°
32236 06 Nov 1978 @ 1200 --- research-mab 11/06/1978 - no time noted - Son of Black Growler (new steam vent between Ledge & Valentine) was throwing out a fine spray of clear water along with roaring steam. Temp 198ºF. Beautiful ice formations on surrounding grass!
32153 12 Aug 1978 @ 1200 --- research-mab 08/12/1978 - no time noted post Ledge - Also of note water in Jetsam Pool has increased about 1-2 feet in depth while the power of our new unnamed fumerole (Son of Black Growler) seems to have decreased.
32294 02 Aug 1977 @ 1200 --- research-mab Aug 2 1977 - no time noted - New Steam Vent by Ledge 200º. The vent has been clogged up by debris from the Harding runoff channel & has turned into a powerful frying pan spring splash 5-6” high.
32282 12 Jul 1977 @ 1800 --- research-mab 07/12/1977 - no time noted - The new steam vents near Ledge are emitting more H20 with steam than before.
32281 11 Jul 1977 @ 1200 --- research-mab 07/11/1977 - no time noted - Another new vent has appeared between Ledge and Valentine, directly east of the vent described yesterday. Meanwhile, the major new vent is still quite powerful emitting much steam. The pool described yesterday at Ledge’s east vent is still there & quite pretty. {black growler search]
32279 10 Jul 1977 @ 1200 --- research-mab 07/10/1977 - no time noted - There is a new powerful steamvent which blasted out last night on top of the ridge separating the Ledge and Valentine alcoves. Judging from the grey clay around the vent there must have been some water involved in the initial eruption. [1977 Annual Report: In view of the mobile history of Black Growler, it is tempting to speculate that the new steam vent between Valentine and Ledge might be the most recent orifice for this feature]
EntrySourceLinkComment
04 Jan 2024 @ 1441 Graham https://youtu.be/9yntr9rSr8M?si=29nsWD4i_vPe4uaY Audible thumps when I was there, 2 and 5min into the video at 1442 and 1445.
Baseline does not exist.