| start date | end date | title | description | icon | date limit | importance |
link | modal |
| 1923-00-00 | | Griggs: 1923 | In 1923, Smith (1925) reported Mt. Griggs had active fumaroles, constantly sending "columns of white fumes many hundred feet in the air." This activity does not constitute a volcanic eruption. | information.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Griggs&eruptionid=458&page=basic | |
| 1953-07-00 | | Griggs: 1953 | From Muller and others (1954): "During July [1953] mild fumarolic activity was reported near the crest of Knife Peak [Griggs] by Lt. James Mulkern, pilot with a topographic survey unit of the Army Corps of Engineers. This peak has no history of more vigorous activity." This activity does not constitute a volcanic eruption. | information.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Griggs&eruptionid=459&page=basic | |
| 1954-00-00 | | Griggs: 1954 | Keller and Reiser (1959) reported Mt. Griggs "steaming" in 1954. This activity does not constitute a volcanic eruption. | information.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Griggs&eruptionid=460&page=basic | |
| 1965-00-00 | | Griggs: 1965 | Ward and Matumoto (1967) report seeing a "very active fumarole high on the west flank" of Mt. Griggs during 1965. This activity does not constitute a volcanic eruption. | information.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Griggs&eruptionid=461&page=basic | |