| Eruption | Duration | Interval |
|---|---|---|
| 13 Aug 2015 @ 1425 ie | 16y 362d 3h 25m | |
| 20 Aug 1998 @ 1100 A | 5d 10h 44m | |
| 15 Aug 1998 @ 0016 ie | 1d 12h 16m | |
| 13 Aug 1998 @ 1200 ie | 15h 0m | |
| 12 Aug 1998 @ 2100 A | 3d 5h 20m | |
| 09 Aug 1998 @ 1540 | 16d 1h 46m | |
| 24 Jul 1998 @ 1354 | 14d 1h 59m | |
| 10 Jul 1998 @ 1155 ie | 333d 23h 53m | |
| 10 Aug 1997 @ 1202 ie | 14d 19h 53m | |
| 26 Jul 1997 @ 1609 ie | 39d 4h 9m | |
| 17 Jun 1997 @ 1200 ie | 11d 16h 40m | |
| 05 Jun 1997 @ 1920 ie | 54d 55m | |
| 12 Apr 1997 @ 1825 ie | 293d 56m | |
| 23 Jun 1996 @ 1729 | 2d 2h 52m | |
| 21 Jun 1996 @ 1437 ie | 1d 18m | |
| 20 Jun 1996 @ 1419 ie | 23h 42m | |
| 19 Jun 1996 @ 1437 ie | 11y 309d 14h 48m | |
| 16 Aug 1984 @ 2349 | 4m 6s | 4h 38m |
| 16 Aug 1984 @ 1911 | 4m 23s | 6h 47m |
| 16 Aug 1984 @ 1224 | 4m 13s | 1d 23h 43m |
| 14 Aug 1984 @ 1241 | 3m 57s | 5h 15m |
| 14 Aug 1984 @ 0726 | 4m 14s | 21h 44m |
| 13 Aug 1984 @ 0942 | 4m 24s |
| Interval Count | 22 |
| Min | 4h 38m |
| Max | 16y 362d 3h 25m |
| Mean | 1y 149d 15h 29m |
| Median | 4d 8h 2m |
| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
|---|---|---|---|---|
| 15241 | 18 Jun 1996 @ 0000 | 18 Jun 1996 @ 2359 | JarnoO | active |