Grewingk (1850, translated 2003 by Fritz Jaensch) writes that Vsevidof was smoking in 1784, and had hot springs at its base.

Grewingk (1850, translated 2003 by Fritz Jaensch) writes that Sarychev reported Vsevidof smoking in 1790. Coats (1950) reports smoke on May 30, 1790. The English translation of Sarychev is less clear - for the 30th of May, it reads: "The island Umnak is level on its western side, but elevated towards the north-east. It extends as far as the strait which separates it from Unalaschka, and terminates with mountains; several of which, rising above the others, are volcanic, and crowned with eternal snow. It stretches, from south-west to north-east, 55 miles in length. The strait between Umnak and Unalaschka is at least 2 miles and a half in width. About 30 versts from the strait, and about 7 miles from Umnak, are two rocks, surrounded by water; which, on the 31st of May, lay five miles distant towards the north-west. We were then in latitude 52 degrees 49 minutes; and longitude 192 degrees 45 minutes."

Grewingk (1850, translated 2003 by Fritz Jaensch) cites Veniaminov and writes that in 1830 there was renewed activity of a volcanic cone on the SW end of Umnak Island -- perhaps Recheshnoi. Sapper (1917) reports the date of this event as May 30, 1790, and as at Vsevidof. Coats (1950) also notes that Recheshnoi is deeply eroded and that this eruption probably took place at Vsevidof instead. The 1984 English translation of Veniaminov does not appear to contain reference to this event - the only notation of an eruption in 1830 is of a "low peak in the interior of Unimak Island" [perhaps Westdahl?]: "In August, 1830, the summit of this peak exploded again, but without any other special phenomena."

From Miller and others (1998): "Recorded activity in 1878 may have been form a radial fissure eruption on the west flank; this event may have produced the youngest dacite flow, which extends west-southwest to Cape Kigushimkada (Byers, 1959)." Sapper (1917) wrote that Vsevidof had a brief flame and ash eruption and a new crater developed from which came steam and hot cooking mud. This new crater appeared between Vsevidof and the settlement. Sapper also notes that there were many hot springs. Hantke (1962) notes that about 1878 large lava streamed out of ruptures in the west flank. The eruption lasted less than two years: Dall (1918) writes that he saw Vsevidof in 1880, the "image of perfect peace", and does not mention the 1878 event.

Coats (1950) reports smoke at Vsevidof in 1880.

From Miller and others (1998): "Another phreatic eruption, possibly from the west rift, occurred in March, 1957 (Byers, 1959, p. 305, citing article in Anchorage Times of March 12, 1957). Earthquakes were felt throughout southeast Umnak, and residents of Nikolski, the island's main village 24 km southwest of Vsevidof, reportedly observed discharge of steam and volcanic ash. However, in a subsequent article (Anchorage Times, March 15, 1957) a pilot reportedly observed no evidence of a volcanic eruption." The smoke and steam were concurrent with a large earthquake in the vicinity of Adak.

From McGimsey and others (2004): "On January 28, a resident in Nikolski on Umnak Island called at 4 pm AST to report 'black smoke, dark puffing' issuing from the top of nearby Vsevidof Volcano. The weather was cold and clear, and a M6.1 regional earthquake had occurred in the area the previous evening, followed by numerous aftershocks.
"AVO received no additional or subsequent reports of activity. Routine examination of satellite data by AVO remote-sensing specialists earlier in the week revealed that indeed a minor steam plume was present at the volcano. The wintertime low sun-angle likely accounts for the reporter's description of 'black smoke'.