Last Known Eruption
1h 45m ago

Latest Eruptions

Eruption DurationInterval
22 May 2024 @ 0941 ie13h 49m
21 May 2024 @ 1952 ie wc maj2h 56m
21 May 2024 @ 1656 min8h 38m
21 May 2024 @ 0818 ie wc maj28m
21 May 2024 @ 0750 wc min20h 15m
20 May 2024 @ 1135 wc maj10m 24s 3h 6m
20 May 2024 @ 0829 ie wc min24m
20 May 2024 @ 0805 wc min2d 16h 8m
17 May 2024 @ 1557 wc maj8m 7s 59m
17 May 2024 @ 1458 ns maj2h 27m
17 May 2024 @ 1231 wc maj5m 22s 30m
17 May 2024 @ 1201 wc maj6m 59s 31m
17 May 2024 @ 1130 wc maj5m 1s 1h 1m
17 May 2024 @ 1029 ns wc40m
17 May 2024 @ 0949 ie wc maj2h 35m
17 May 2024 @ 0714 wc maj35m
17 May 2024 @ 0639 ie wc maj13h 28m
16 May 2024 @ 1711 ie wc maj6h 2m
16 May 2024 @ 1109 wc min2h 7m
16 May 2024 @ 0902 wc min1h 44m
16 May 2024 @ 0718 ie wc21m
16 May 2024 @ 0657 ie wc maj16h 59m
15 May 2024 @ 1358 min1h 17m
15 May 2024 @ 1241 ie min22h 36m
14 May 2024 @ 1405 wc min1h 20m
14 May 2024 @ 1245 ie wc maj3h 42m
14 May 2024 @ 0903 ie wc14h 4m
13 May 2024 @ 1859 ie wc39m
13 May 2024 @ 1820 wc min2h 43m
13 May 2024 @ 1537 wc min7h 15m
13 May 2024 @ 0822 wc min48m
13 May 2024 @ 0734 wc min20h 14m
12 May 2024 @ 1120 ie wc22h 53m
11 May 2024 @ 1227 ns wc1h 31m
11 May 2024 @ 1056 ie maj4h 34m
11 May 2024 @ 0622 ie wc maj11h 4m
10 May 2024 @ 1918 ie maj8h 25m
10 May 2024 @ 1053 ie wc46m
10 May 2024 @ 1007 ie maj31m
10 May 2024 @ 0936 wc min1h 2m
10 May 2024 @ 0834 wc maj50m
10 May 2024 @ 0744 ie wc51m
10 May 2024 @ 0653 ie wc22h 23m
09 May 2024 @ 0830 ie wc maj48m
09 May 2024 @ 0742 wc min19h 42m
08 May 2024 @ 1200 ie wc maj2h 5m
08 May 2024 @ 0955 wc maj1h 4m
08 May 2024 @ 0851 wc maj2h 38m
08 May 2024 @ 0613 ns wc maj18h 50m
07 May 2024 @ 1123 min1h 0m
07 May 2024 @ 1023 ns min4h 19m
07 May 2024 @ 0604 ie wc min1d 14h 40m
05 May 2024 @ 1524 ie2h 56m
05 May 2024 @ 1228 ie maj4h 23m
05 May 2024 @ 0805 ie wc1h 52m
05 May 2024 @ 0613 ie wc maj39m
05 May 2024 @ 0534 ie wc8h 49m
04 May 2024 @ 2045 wc maj30m
04 May 2024 @ 2015 wc maj47m
04 May 2024 @ 1928 ie maj43m
04 May 2024 @ 1845 wc maj3h 3m
04 May 2024 @ 1542 ns wc1h 35m
04 May 2024 @ 1407 ie wc2h 15m
04 May 2024 @ 1152 wc15h 40m
03 May 2024 @ 2012 ie wc2h 18m
03 May 2024 @ 1754 ie wc maj7h 23m
03 May 2024 @ 1031 wc maj15m
03 May 2024 @ 1016 ns wc22m
03 May 2024 @ 0954 ns wc min35m
03 May 2024 @ 0919 ns35m
03 May 2024 @ 0844 wc min18h 33m
02 May 2024 @ 1411 min10m
02 May 2024 @ 1401 min9m
02 May 2024 @ 1352 min6m
02 May 2024 @ 1346 min6m
02 May 2024 @ 1340 min6m
02 May 2024 @ 1334 min4h 47m
02 May 2024 @ 0847 ie wc1d 31m
01 May 2024 @ 0816 ie wc maj17h 33m
30 Apr 2024 @ 1443 ie wc maj2h 20m
30 Apr 2024 @ 1223 wc maj3h 16m
30 Apr 2024 @ 0907 wc maj46m
30 Apr 2024 @ 0821 ie wc maj41m
30 Apr 2024 @ 0740 ie wc1h 11m
30 Apr 2024 @ 0629 ns wc maj21h 50m
29 Apr 2024 @ 0839 wc min18m
29 Apr 2024 @ 0821 wc min39m
29 Apr 2024 @ 0742 wc min5m
29 Apr 2024 @ 0737 ie wc36m
29 Apr 2024 @ 0701 ie wc22m
29 Apr 2024 @ 0639 ie wc maj17h 40m
28 Apr 2024 @ 1259 ie wc maj1h 15m
28 Apr 2024 @ 1144 wc maj19h 49m
27 Apr 2024 @ 1555 ns wc maj2h 50m
27 Apr 2024 @ 1305 wc22h 37m
26 Apr 2024 @ 1428 ie wc2h 5m
26 Apr 2024 @ 1223 ns wc33m
26 Apr 2024 @ 1150 ie wc maj4h 22m
26 Apr 2024 @ 0728 ie maj42m
26 Apr 2024 @ 0646 ie wc11h 41m

Interval Statistics

Interval Count100
Min5m
Max2d 16h 8m
Mean6h 23m
Median2h 5m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
34224 19 Apr 2024 @ 1830 --- SantaFe108 Failed eruption.
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.