Shetlopedia - The Shetland Encyclopaedia
- Professor of Botany at Andersons University, Glasgow, Thomas Edmondston publishes "The Flora of Shetland".
- An unidentified vessel, registered in Shetland, operating as a packet boat and laden with a cargo of potatoes, is recorded as having been wrecked 'near Troswick', Dunrossness c. 1845
- The Helen Cook, a sail schooner, of Dundee, Scotland, wrecked at Bonidale on the west shore of Lunning Sound during the first two weeks of the month.
- An unidentified vessel wrecked on Papa Stour.
- Wreckage from an unidentified vessel, or vessels reported washed ashore at Papa Stour and Scalloway.
A thick layer of volcanic ash from the eruption of Iceland's Hekla reached Orkney and Shetland in ten hours.
The eruption lasted for 7 months.
The Paragon, laden with a cargo of timber. A vessel of this name or part name presumed wrecked on or near one of the North Isles, after a portion of stern washed ashore on Unst, and other wreckage was found throughout the general area.
- An unidentified vessel is recorded as having wrecked at "Noss". It is unclear from the record whether this was the Isle of Noss, Bressay, which is the preferred option within the record, or Noss, Scousburgh.