| start date | end date | title | description | icon | date limit | importance |
link | modal |
| 1763-00-00 | 1770-00-00 | Tanaga: 1763 - 1770 | From Miller and others (1998):"Few details are available concerning historical activity of Tanaga Volcano, and some or all of the events attributed to it may have involved adjacent cones in the northwest part of the island (Coats, 1950)."
Grewingk (1850, translated 2003 by Fritz Jaensch) reports: "1763-1770 constantly active (according to promyshlenniks)."
From Sapper (1917): "Tanaga smoking in 1763-1770." | asterisk_yellow.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Tanaga&eruptionid=30&page=basic | |
| 1791-06-09 | | Tanaga: 1791 | Grewingk (1850, translated 2003 by Fritz Jaensch): Sauer and Sarychev saw smoking on the 9th of June, 1791. The English translation of Sarychev (translated from Russian in 1806 and 1807, republished 1969) makes no mention of smoking, and reads: "we were presented with the spectacle of a lofty volcanic mountain, that exposed to our view, at the distance of scarcely two miles, its black and tremendously tall side of rock."
Sauer (1802) writes that on the 9th of June, 1791, "At first we took ... More information | asterisk_yellow.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Tanaga&eruptionid=31&page=basic | |
| 1829-00-00 | | Tanaga: 1829 | Grewingk (1850, translated 2003 by Fritz Jaensch) reports: Tanaga smoking during 1829. | asterisk_yellow.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Tanaga&eruptionid=32&page=basic | |
| 1914-00-00 | | Tanaga: 1914 | Coats (1950): a lava flow was observed at Tanaga in 1914. | exclamation.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Tanaga&eruptionid=33&page=basic | |
| 2005-10-01 | 2005-11-00 | Tanaga: 2005 | From McGimsey and others (2007): "Earthquake activity at Tanaga increased abruptly on October 1, 2005. Over the next several days, the number of located events ranged from 15 to 68 per day, in striking contrast to the typical one earthquake per month previously recorded since the seismic network was installed in 2003. The earthquakes centered a few kilometers northeast of the summit of Tanaga at a depth of 10-20 km (~6-12 mi), and the largest event had a magnitude of 1.7. AVO issued a special ... More information | information.png | ye | 50 | http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Tanaga&eruptionid=599&page=basic | |