Last Known Eruption
4y 270d 9m ago

Latest Eruptions

Eruption DurationInterval
22 Apr 2016 @ 0000 A208d 9h 30m
26 Sep 2015 @ 1430 A2y 219d 13h 30m
19 Feb 2013 @ 0000 ?167d 15h 0m
04 Sep 2012 @ 100011d 17h 18m
23 Aug 2012 @ 164272d 4h 12m
12 Jun 2012 @ 123092d 10m
12 Mar 2012 @ 12205m
12 Mar 2012 @ 1215 ie58d 23h 15m
13 Jan 2012 @ 1200 ie
13 Jan 2012 @ 1200 ie10s 71d 13h 0m
03 Nov 2011 @ 0000 ? A1d 9h 1m
01 Nov 2011 @ 145914h 59m
01 Nov 2011 @ 0000 A2d 12h 30m
29 Oct 2011 @ 1130 A1d 23h 30m
27 Oct 2011 @ 1200 A1y 273d 20h 5m
26 Jan 2010 @ 1455 ?121d 21h 2m
26 Sep 2009 @ 185327d 3h 22m
30 Aug 2009 @ 1531 E6d 13h 44m
24 Aug 2009 @ 0147 E8d 1h 33m
16 Aug 2009 @ 0014 E5d 14m
11 Aug 2009 @ 0000 A3d 0m
08 Aug 2009 @ 0000 A6d 0m
02 Aug 2009 @ 0000 A3d 0m
30 Jul 2009 @ 0000 A6d 0m
24 Jul 2009 @ 0000 A17d 0m
07 Jul 2009 @ 0000 ? A7d 15h 0m
29 Jun 2009 @ 0900 A16d 9h 0m
13 Jun 2009 @ 0000 A26d 12h 43m
17 May 2009 @ 1117275d 11h 17m
15 Aug 2008 @ 0000 ? A21d 14h 37m
24 Jul 2008 @ 092316d 15h 53m
07 Jul 2008 @ 17301h 32m
07 Jul 2008 @ 1558 ns13d 6h 28m
24 Jun 2008 @ 0930 A12d 21h 10m
11 Jun 2008 @ 1220 A47d 18h 20m
24 Apr 2008 @ 1800 A51d 17h 0m
04 Mar 2008 @ 0000 A24d 9h 32m
08 Feb 2008 @ 1428115d 23h 58m
15 Oct 2007 @ 1530 ?125d 6h 4m
12 Jun 2007 @ 092611d 14h 56m
31 May 2007 @ 183054d 18h 30m
07 Apr 2007 @ 0000 ? A101d 9h 55m
26 Dec 2006 @ 1305 A93d 20h 35m
23 Sep 2006 @ 1730 ?15d 14h 5m
08 Sep 2006 @ 0325 E3d 8h 35m
04 Sep 2006 @ 1850 ? A12d 23h 56m
22 Aug 2006 @ 1854 E5d 17h 31m
17 Aug 2006 @ 0123 E10d 12m
07 Aug 2006 @ 0111 E5d 15h 34m
01 Aug 2006 @ 0937 ? E1d 6h 17m
31 Jul 2006 @ 0320 E1d 9h 27m
29 Jul 2006 @ 17531d 17h 53m
28 Jul 2006 @ 0000 A6h 50m
27 Jul 2006 @ 1710 E2d 17h 10m
25 Jul 2006 @ 0000 A16h 35m
24 Jul 2006 @ 072523h 1m
23 Jul 2006 @ 0824 E2d 9h 28m
20 Jul 2006 @ 2256 E2d 13h 55m
18 Jul 2006 @ 09015h 16m
18 Jul 2006 @ 0345 E4d 6h 37m
13 Jul 2006 @ 2108~40s

Interval Statistics

Interval Count59
Min5m
Max2y 219d 13h 30m
Mean60d 12h 15m
Median11d 14h 56m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
2727 15 Apr 2016 @ 1942 --- Janet Jones Muddy with 5 dead cormorants being hauled off by a female coyote. Based on one bird carcass already having been fed on by ravens, maybe an eruption sometime this morning? Local visitors saw the ravens at about 0930-1000. Also - Black Diamond and Black Opal now join together with a channel of water.
2515 10 Oct 2015 @ 2121 --- Janet Jones Black Diamond and Wall Pool were all joined at the surface with gray muddy water.
389 23 Aug 2012 @ 1642 --- KarlH Black Diamond at 1642 per visitor report. Visitor Center called it out over FRS. I had just been at Biscuit 2 hrs before. Salt and Pepper had been white, now muddy and throwing rocks. Spoke with visitors who also witnessed eruption for confirmation.
711 11 Mar 2012 @ 0000 11 Mar 2012 @ 2359 BoekelUpload reported to be active in last 24 hours
70 29 Oct 2011 @ 1130 --- Graham Visitors reported another eruption in the Black Diamond area ~1130 estimated 60\'.
69 27 Oct 2011 @ 1645 --- Graham Explosive eruption in the area of Black Diamond around 1645 per VR.
951 24 Apr 2008 @ 1200 24 Apr 2008 @ 2359 BoekelUpload evening per Keller
943 04 Mar 2008 @ 0000 04 Mar 2008 @ 2359 BoekelUpload widened runoff channel; new sediment
EntrySourceLinkComment
17 May 2009 @ 1117 JSJ https://www.flickr.com/photos/jsjgeology/28241048110 Photo (1 of 8) by Robert Lillie of Black Diamond Pool's 11:17 AM eruption on 17 May 2009.
Baseline does not exist.