Last Known Eruption
12h 48m ago

Latest Eruptions

Eruption DurationInterval
27 Sep 2023 @ 0929 min14h 16m
26 Sep 2023 @ 1913 ns maj~5m 1d 1h 46m
25 Sep 2023 @ 1727 min3d 35m
22 Sep 2023 @ 1652 min13m
22 Sep 2023 @ 1639 min2h 14m
22 Sep 2023 @ 1425 min26m
22 Sep 2023 @ 1359 min6h 39m
22 Sep 2023 @ 0720 min23h 19m
21 Sep 2023 @ 0801 maj12h 40m
20 Sep 2023 @ 1921 wc maj1h 36m
20 Sep 2023 @ 1745 maj7m 6h 51m
20 Sep 2023 @ 1054 ie maj1h 19m
20 Sep 2023 @ 0935 ie wc maj1d 16h 23m
18 Sep 2023 @ 1712 maj8m 9h 8m
18 Sep 2023 @ 0804 maj11m 13h 20m
17 Sep 2023 @ 1844 min6h 11m
17 Sep 2023 @ 1233 min3d 22h 58m
13 Sep 2023 @ 1335 min1d 20h 3m
11 Sep 2023 @ 1732 maj41m
11 Sep 2023 @ 1651 ns wc maj2h 57m
11 Sep 2023 @ 1354 min1h 7m
11 Sep 2023 @ 1247 maj6m 4h 59m
11 Sep 2023 @ 0748 min12m
11 Sep 2023 @ 0736 min9m
11 Sep 2023 @ 0727 min18h 57m
10 Sep 2023 @ 1230 min20h 0m
09 Sep 2023 @ 1630 ns maj>6m 2h 28m
09 Sep 2023 @ 1402 ie wc maj2h 17m
09 Sep 2023 @ 1145 maj7m 4h 20m
09 Sep 2023 @ 0725 wc min11h 17m
08 Sep 2023 @ 2008 min10h 27m
08 Sep 2023 @ 0941 wc maj1d 40m
07 Sep 2023 @ 0901 wc min1d 9h 8m
05 Sep 2023 @ 2353 min1d 8h 30m
04 Sep 2023 @ 1523 min56m
04 Sep 2023 @ 1427 maj6m 50m
04 Sep 2023 @ 1337 ns maj6m 41m
04 Sep 2023 @ 1256 ns maj~4m 1h 5m
04 Sep 2023 @ 1151 ns maj~6-7m4h 34m
04 Sep 2023 @ 0717 wc min42m
04 Sep 2023 @ 0635 min14h 59m
03 Sep 2023 @ 1536 ie maj1h 18m
03 Sep 2023 @ 1418 wc maj45m
03 Sep 2023 @ 1333 ie maj5m
03 Sep 2023 @ 1328 wc maj4h 0m
03 Sep 2023 @ 0928 min17m
03 Sep 2023 @ 0911 min25m
03 Sep 2023 @ 0846 min28m
03 Sep 2023 @ 0818 min29m
03 Sep 2023 @ 0749 min14m
03 Sep 2023 @ 0735 min12h 28m
02 Sep 2023 @ 1907 min13m
02 Sep 2023 @ 1854 min4d 10h 9m
29 Aug 2023 @ 0845 wc min1h 55m
29 Aug 2023 @ 0650 min5m
29 Aug 2023 @ 0645 min16h 10m
28 Aug 2023 @ 1435 min59m
28 Aug 2023 @ 1336 ie min13m
28 Aug 2023 @ 1323 min22m
28 Aug 2023 @ 1301 min12m
28 Aug 2023 @ 1249 min24m
28 Aug 2023 @ 1225 min8m
28 Aug 2023 @ 1217 min1h 24m
28 Aug 2023 @ 1053 maj9m 29m
28 Aug 2023 @ 1024 min8m
28 Aug 2023 @ 1016 min17m
28 Aug 2023 @ 0959 min3d 1h 31m
25 Aug 2023 @ 0828 ns wc min3d 18h 58m
21 Aug 2023 @ 1330 wc min1d 2h 3m
20 Aug 2023 @ 1127 ns maj1d 21h 30m
18 Aug 2023 @ 1357 min4m
18 Aug 2023 @ 1353 min4h 15m
18 Aug 2023 @ 0938 wc maj2d 11h 13m
15 Aug 2023 @ 2225 ns maj~5m 5h 52m
15 Aug 2023 @ 1633 min4h 43m
15 Aug 2023 @ 1150 min5d 15h 50m
09 Aug 2023 @ 2000 ie wc maj1d 4h 57m
08 Aug 2023 @ 1503 ie maj1d 1h 41m
07 Aug 2023 @ 1322 ie wc3d 4h 18m
04 Aug 2023 @ 0904 wc min3d 15h 11m
31 Jul 2023 @ 1753 min10m
31 Jul 2023 @ 1743 min28m
31 Jul 2023 @ 1715 min21m
31 Jul 2023 @ 1653:21 min19s 7m 8s
31 Jul 2023 @ 1646:13 min24s 12m 8s
31 Jul 2023 @ 1634:05 min25s 13m 48s
31 Jul 2023 @ 1620:17 min26s 9m 14s
31 Jul 2023 @ 1611:03 min12m
31 Jul 2023 @ 1559 min56m
31 Jul 2023 @ 1503 min3h 20m
31 Jul 2023 @ 1143 wc maj2h 47m
31 Jul 2023 @ 0856 min5m
31 Jul 2023 @ 0851 min1d 59m
30 Jul 2023 @ 0752 min1d 21h 51m
28 Jul 2023 @ 1001 min3d 3h 16m
25 Jul 2023 @ 0645 min18h 45m
24 Jul 2023 @ 1200 min10m
24 Jul 2023 @ 1150 min49m
24 Jul 2023 @ 1101 wc min1h 31m
24 Jul 2023 @ 0930 ns wc maj1d 13h 4m

Interval Statistics

Interval Count100
Min4m
Max5d 15h 50m
Mean15h 58m
Median2h 22m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
28124 08 Sep 2023 @ 1618 --- K.Cooper Splashing heavily but not commiting
27630 15 Aug 2023 @ 2330 --- Ben VL Splashing episodes but no additional eruption by this time.
27361 31 Jul 2023 @ 1745 31 Jul 2023 @ 1750 Brian episodes of weak splashing at: 1745 1748 1750
27360 31 Jul 2023 @ 1720 31 Jul 2023 @ 1741 Brian episodes of weak splashing at: 1720 1723 1726 1728 1731 1733 1736 1741
27359 31 Jul 2023 @ 1659 31 Jul 2023 @ 1713 Brian episodes of weak splashing at: 1659 1702 1705 1707 1711 1713
27356 31 Jul 2023 @ 1642 --- Brian weak splashing inside crater
27354 31 Jul 2023 @ 1629 --- Brian ~10sec of weak splashing inside crater
26612 23 Jun 2023 @ 0946 23 Jun 2023 @ 1017 Forestbewithyou Failed eruption at: 9:48, 9:54,9:57, 10:00, 10:02, 10:05 1007 10:11 10:13 10:16 Additional note, may have had a minor/major shortly before my arrival. Parts of the cone outside are wet.
26603 22 Jun 2023 @ 2013 22 Jun 2023 @ 2030 Forestbewithyou Failed eruptions at: 2013 2026 There are so many mosquitoes out here…
26623 18 Jun 2023 @ 0941 18 Jun 2023 @ 1012 Forestbewithyou Failed eruptions at 9:42, 9:47, 9:49, 9:55, 10:02, 10:06, 10:12
26622 17 Jun 2023 @ 1922 17 Jun 2023 @ 1936 Forestbewithyou Failed eruptions at 1922,1925,1928,1930,1934,1936
26621 17 Jun 2023 @ 1844 17 Jun 2023 @ 1900 Forestbewithyou Failed eruptions at 1844,1848,1852,1855,1858
26620 17 Jun 2023 @ 1801 17 Jun 2023 @ 1816 Forestbewithyou Failed eruptions at 1801,1803,1806,1808,1810,1813,1816
26619 17 Jun 2023 @ 1635 17 Jun 2023 @ 1701 Forestbewithyou Failed eruptions at 1636, 1638, 1641,1644,1647,1649,1652,1655,1658,1701
26618 17 Jun 2023 @ 1424 --- Forestbewithyou Failed eruption
26617 17 Jun 2023 @ 1350 --- Forestbewithyou Failed eruption
26616 17 Jun 2023 @ 1311 17 Jun 2023 @ 1328 Forestbewithyou Failed eruptions at 1311, 1317, and 1328
26185 09 Jun 2023 @ 0725 --- K.Cooper Failed attempts every few minutes
26098 06 Jun 2023 @ 2050 06 Jun 2023 @ 2057 SantaFe108 Failed eruptions at: 2050 2053 2057
26096 06 Jun 2023 @ 1932 06 Jun 2023 @ 1936 SantaFe108 Failed eruptions at: 1932 1936
26094 06 Jun 2023 @ 1919 --- SantaFe108 Failed eruption.
25711 22 May 2023 @ 2015 22 May 2023 @ 2100 SantaFe108 Having failed eruptions every 3 minutes. Each fail is followed by weak filling and dropping in Bulger's Hole. 2007 major likely end of series.
25577 20 May 2023 @ 1032 --- SantaFe108 Failed eruption.
25439 14 May 2023 @ 1805 --- SantaFe108 Failed eruptions every 3 minutes.
25396 13 May 2023 @ 1124 --- SantaFe108 (wc) Failed eruption.
25304 30 Apr 2023 @ 1907 --- SantaFe108 Failed eruptions every few minutes.
24914 16 Jan 2023 @ 0830 --- Graham Having frequent heavy splashes in last 45min, not erupting.
24901 14 Jan 2023 @ 1426 --- Graham Switched to heavy splashing every few minutes after the last minor.
24872 11 Jan 2023 @ 1255 11 Jan 2023 @ 1509 Graham No eruption, just splashing every few minutes.
24853 09 Jan 2023 @ 1035 --- Graham Heavy splashes every few minutes. No more eruptions.
24564 30 Oct 2022 @ 1658 --- SantaFe108 Failed eruptions every 3 minutes.
24429 16 Oct 2022 @ 1824 --- SantaFe108 Having failed eruptions every 2 minutes. Being very annoying.
23585 05 Sep 2022 @ 1344 --- Graham Splashed and pooled water. No eruption in last 6.5h.
23445 27 Aug 2022 @ 1948 --- SantaFe108 LONG failed eruption, ~1m long! Did not fill up the crater.
23444 27 Aug 2022 @ 1942 --- SantaFe108 Failed eruption.
23443 27 Aug 2022 @ 1936 --- SantaFe108 Failed eruption.
23276 19 Aug 2022 @ 1447 --- SantaFe108 Failed eruption.
23274 19 Aug 2022 @ 1405 --- SantaFe108 Failed eruption.
22173 28 Jun 2022 @ 0852 --- K.Cooper Attempted eruption
22256 08 Jun 2022 @ 2229 09 Jun 2022 @ 0100 SantaFe108 Did not attempt an eruption or had visible water of any kind for the rest of the night. Occasionally, gurgling would increase in volume but did not amount to anything. Bulger pretty much went to sleep for the night.
21850 08 Jun 2022 @ 2039 08 Jun 2022 @ 2133 SantaFe108 Bulger had an eruption attempt every 2-5 minutes (averaging 3 minutes) during this period.
21845 08 Jun 2022 @ 1715 08 Jun 2022 @ 1828 Forestbewithyou Bulger was quite busy. Had many failed attempts at erupting. Apologies in advance for this long list: 1715, 1719, 1722, 1725, 1729, 1732, 1735, 1738, 1741, 1744, 1747, 1750, 1753, 1756, 1759, 1802, 1805, 1809, 1812, 1815, 1818, 1821, and 1825. Man my finger hurts now.
21835 08 Jun 2022 @ 1509 08 Jun 2022 @ 1516 Forestbewithyou Failed start at 1509 and 1515. Interesting note: Shortly after the 1515 fail, Bulger’s hole filled with water to about 1/2 full with mildly boiling water
21831 08 Jun 2022 @ 1258 --- Forestbewithyou Failed eruption
21828 08 Jun 2022 @ 1156 --- Forestbewithyou Failed eruption
21818 07 Jun 2022 @ 2141 --- SantaFe108 Failed eruption attempt.
21808 07 Jun 2022 @ 1441 07 Jun 2022 @ 1445 Forestbewithyou Failed eruptions at 1441 and 1445
21801 06 Jun 2022 @ 1826 --- Forestbewithyou Fail eruption
21807 06 Jun 2022 @ 1219 06 Jun 2022 @ 1337 Forestbewithyou Had failed eruptions at 1219 1221 1224 1227 1230 1236 1239 1242 1244 1246 1250 1253 1256 1259 1304 1306 1309 1313 1316 1320 1326 1328 1331 1337. Left after 1337
21782 06 Jun 2022 @ 1215 --- Forestbewithyou Failed eruption… what a surprise
21783 06 Jun 2022 @ 1104 06 Jun 2022 @ 1107 Forestbewithyou Two failed eruptions at 11:04 and 11:07… Left after 11:07
21775 06 Jun 2022 @ 1100 --- Forestbewithyou Failed eruption.
21761 05 Jun 2022 @ 1729 --- Forestbewithyou Another failed eruption… Bulger is on fire today
21760 05 Jun 2022 @ 1724 --- Forestbewithyou Wow another failed eruption…
21759 05 Jun 2022 @ 1719 --- Forestbewithyou Another failed eruption
21758 05 Jun 2022 @ 1707 --- Forestbewithyou Attempted eruption but failed
21507 25 May 2022 @ 2310 25 May 2022 @ 2325 Micah Kipple Resumed it's repetitive eruption attempts every 3 minutes.
21506 25 May 2022 @ 2005 25 May 2022 @ 2140 Micah Kipple Approximately every 3 minutes, Bulger would grumble, boil, splash, and surge up to a foot above the rim for about a minute.
21040 19 Apr 2022 @ 1350 19 Apr 2022 @ 1445 RMichaels Splashed every few minutes for durations of 30-90 seconds. Some splashes ejected water from the crater, so the activity could technically be considered a long series of weak minors. After observing for a while it just seemed like pre-play building up to the next major. The intervals were not consistent like long series of minors observed in prior seasons.
20727 18 Jan 2022 @ 0952 18 Jan 2022 @ 1232 Graham No eruption during this period.
20709 16 Jan 2022 @ 1730 --- Graham No eruption in last 2 hours. Frequent splashing, sometimes lasting a minute.
19634 17 Sep 2021 @ 1056 --- Graham Splashed but did. or erupt.
18702 28 Jul 2021 @ 0635 28 Jul 2021 @ 0745 Kyle Bulger had no pool splashing within the cone but no eruption every few minutes following the 0635 minor eruption.
18585 22 Jul 2021 @ 1215 22 Jul 2021 @ 1700 SteveO 1215 to 1700 no Buger eruptions occured.
18384 12 Jul 2021 @ 1245 --- JarnoO (wc) One burst and done, "minor minor".
18218 01 Jul 2021 @ 1041 --- Graham Splashed but did not erupt.
17887 18 Jun 2021 @ 1710 --- Craigmon99 There is a 3rd vent on bulger that participates in major eruptions. Located behind the mouth and on top of the right shoulder. Photo will be attached when I have service
17830 15 Jun 2021 @ 1417 --- Craigmon99 New to me seeping vent on top of bulgers right shoulder and above front vent. If this is not new I will delete. Will add picture with better service
15670 21 Aug 2020 @ 1821 --- Forestbewithyou Appears to be post eruptive.
15414 06 Aug 2020 @ 1702 --- JSJ Very weak splashing just above ground level from 1702 to 1703.
14191 15 May 2020 @ 1524 15 May 2020 @ 1703 JarnoO (wc) Have not observed Bulger since its 1524 ie wc maj eruption in this timeframe, despite the camera frequently panning back and forth between the Hill and downbasin. During the full timeframe Grand was erupting, no Bulger was observed either.
14083 21 Jan 2020 @ 1205 --- Graham Still no eruption.
13115 08 Aug 2019 @ 1308 08 Aug 2019 @ 1646 JSJ All closed intervals.
13101 07 Aug 2019 @ 1212 07 Aug 2019 @ 1616 JSJ All closed intervals.
12954 02 Aug 2019 @ 1318 02 Aug 2019 @ 1406 rbwhitaker No additional eruptions in this time frame, after the one that started at 1318.
11579 04 Jun 2019 @ 1213 04 Jun 2019 @ 1955 JSJ All posted Bulger eruptions between these times are closed intervals.
9482 05 Aug 2018 @ 1815 --- Micah Kipple Still no eruption since ~1630
9479 05 Aug 2018 @ 1638 05 Aug 2018 @ 1738 Micah Kipple No eruption. Periodically grumbled and boiled at depth with occasional spits coming into view.
9454 03 Aug 2018 @ 1246 03 Aug 2018 @ 1250 JSJ Light, brief splashing at 1246 and 1250.
EntrySourceLinkComment
06 Aug 2020 @ 1249 JSJ https://www.flickr.com/photos/jsjgeology/50214442641 Photo (1 of 2) of Bulger Geyser's 12:49 PM-onward eruption on 6 August 2020.
10 Aug 2018 @ 1505 JSJ https://www.youtube.com/watch?v=xjf_ugkdftw#t=1m27s Video clips (time stamp 1:27 to the end) of Bulger Geyser's 3:05 to 3:14 PM eruption on 10 August 2018.
03 Aug 2018 @ 1329 JSJ https://www.youtube.com/watch?v=xjf_ugkdftw Video clips (beginning to time stamp 1:26) of Bulger Geyser's 1:29 to 1:39 PM eruption on 3 August 2018.
31 Jul 2017 @ 1500 JSJ https://www.youtube.com/watch?v=88UoDqEg17c Clips 1-3 of this video compilation (beginning to time stamp 0:49) show Bulger Geyser's 3:00 to 3:08 PM eruption on 31 July 2017. The rest of the video shows other eruptions that day.
31 Jul 2017 @ 1626 JSJ https://www.flickr.com/photos/jsjgeology/35977700814 Photo (out of 2) of Bulger Geyser's 4:26 to 4:32 PM eruption on 31 July 2017.
18 May 2015 @ 1922 JSJ https://www.flickr.com/photos/jsjgeology/18251560601 Photo of Bulger Geyser's 7:22 to 7:28 PM eruption on 18 May 2015.
Baseline does not exist.