Last Known Eruption
2d 20h 29m ago

Latest Eruptions

Eruption DurationInterval
25 Mar 2023 @ 1310 ie wc maj23h 31m
24 Mar 2023 @ 1339 ie wc maj10d 4h 1m
14 Mar 2023 @ 0938 min5d 1h 42m
09 Mar 2023 @ 0656 ie wc maj1d 18h 23m
07 Mar 2023 @ 1233 ie wc3h 6m
07 Mar 2023 @ 0927 ie wc maj2d 16h 28m
04 Mar 2023 @ 1659 ie wc8h 32m
04 Mar 2023 @ 0827 wc maj1h 28m
04 Mar 2023 @ 0659 ie wc2d 16h 56m
01 Mar 2023 @ 1403 min23m
01 Mar 2023 @ 1340 min5h 4m
01 Mar 2023 @ 0836 wc maj1d 23h 58m
27 Feb 2023 @ 0838 ie wc maj19h 5m
26 Feb 2023 @ 1333 wc maj23h 17m
25 Feb 2023 @ 1416 wc maj6h 45m
25 Feb 2023 @ 0731 ie wc maj4d 17h 41m
20 Feb 2023 @ 1350 wc maj1d 23h 9m
18 Feb 2023 @ 1441 wc6h 31m
18 Feb 2023 @ 0810 ns wc maj3d 22h 23m
14 Feb 2023 @ 0947 ie wc16h 1m
13 Feb 2023 @ 1746 ie wc maj2h 43m
13 Feb 2023 @ 1503 ie wc33m
13 Feb 2023 @ 1430 ie wc maj35m
13 Feb 2023 @ 1355 ie wc56m
13 Feb 2023 @ 1259 ie wc2h 1m
13 Feb 2023 @ 1058 ie wc maj8d 19h 53m
04 Feb 2023 @ 1505 ie wc5h 59m
04 Feb 2023 @ 0906 wc maj1d 16h 11m
02 Feb 2023 @ 1655 wc maj3h 1m
02 Feb 2023 @ 1354 ie wc7d 20h 16m
25 Jan 2023 @ 1738 ie wc maj3d 8h 23m
22 Jan 2023 @ 0915 ie maj16h 22m
21 Jan 2023 @ 1653 ie wc maj1h 52m
21 Jan 2023 @ 1501 wc maj5d 34m
16 Jan 2023 @ 1427 wc maj2h 14m
16 Jan 2023 @ 1213 maj54m
16 Jan 2023 @ 1119 maj5m 3h 50m
16 Jan 2023 @ 0729 maj14h 27m
15 Jan 2023 @ 1702 ns maj45m
15 Jan 2023 @ 1617 ie maj>7m 3h 30m
15 Jan 2023 @ 1247 min1h 8m
15 Jan 2023 @ 1139 maj5m 29m
15 Jan 2023 @ 1110 maj5m 21h 21m
14 Jan 2023 @ 1349 min10m
14 Jan 2023 @ 1339 min8m
14 Jan 2023 @ 1331 min7m
14 Jan 2023 @ 1324 min9m
14 Jan 2023 @ 1315 min11m
14 Jan 2023 @ 1304 min7m
14 Jan 2023 @ 1257 min6m
14 Jan 2023 @ 1251 min7m
14 Jan 2023 @ 1244 min9m
14 Jan 2023 @ 1235 min11m
14 Jan 2023 @ 1224 min14m
14 Jan 2023 @ 1210 min7m
14 Jan 2023 @ 1203 min8m
14 Jan 2023 @ 1155 min7m
14 Jan 2023 @ 1148 min9m
14 Jan 2023 @ 1139 min15m
14 Jan 2023 @ 1124 min21m
14 Jan 2023 @ 1103 min9m
14 Jan 2023 @ 1054 min13m
14 Jan 2023 @ 1041 min37m
14 Jan 2023 @ 1004 maj9m 16m
14 Jan 2023 @ 0948 min10m
14 Jan 2023 @ 0938 min11m
14 Jan 2023 @ 0927 min9m
14 Jan 2023 @ 0918 min5m
14 Jan 2023 @ 0913 min7m
14 Jan 2023 @ 0906 min8m
14 Jan 2023 @ 0858 min8m
14 Jan 2023 @ 0850 min6m
14 Jan 2023 @ 0844 min8m
14 Jan 2023 @ 0836 min11m
14 Jan 2023 @ 0825 min32m
14 Jan 2023 @ 0753 ? min1d 19h 50m
12 Jan 2023 @ 1203 min1d 4h 18m
11 Jan 2023 @ 0745 maj21h 21m
10 Jan 2023 @ 1024 maj9m 59m
10 Jan 2023 @ 0925 maj49m
10 Jan 2023 @ 0836 maj56m
10 Jan 2023 @ 0740 maj15h 52m
09 Jan 2023 @ 1548 maj36m
09 Jan 2023 @ 1512 maj1h 0m
09 Jan 2023 @ 1412 maj31m
09 Jan 2023 @ 1341 maj4h 53m
09 Jan 2023 @ 0848 maj54m
09 Jan 2023 @ 0754 ie maj1d 16h 59m
07 Jan 2023 @ 1455 ns wc maj1d 21h 59m
05 Jan 2023 @ 1656 wc maj9d 1h 34m
27 Dec 2022 @ 1522 maj27m
27 Dec 2022 @ 1455 ns maj1h 21m
27 Dec 2022 @ 1334 ie1d 23h 53m
25 Dec 2022 @ 1341 ns maj3d 21h 7m
21 Dec 2022 @ 1634 wc min43m
21 Dec 2022 @ 1551 wc min9d 1h 38m
12 Dec 2022 @ 1413 ie wc5h 47m
12 Dec 2022 @ 0826 wc maj4d 15h 17m
07 Dec 2022 @ 1709 ie wc1h 45m
07 Dec 2022 @ 1524 wc maj8d 23h 39m

Interval Statistics

Interval Count100
Min5m
Max10d 4h 1m
Mean1d 4h 2m
Median1h 24m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
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.