A Letter Concerning Earthquakes: Written In The Year 1693 is a book by John Flamsteed, originally published in 1750. The book is a letter written by Flamsteed to a friend, discussing the earthquake that occurred in the UK in 1692. Flamsteed was an English astronomer and mathematician who is best known for his work on the Greenwich Observatory. In the letter, he describes the effects of the earthquake on the landscape and the people, as well as his...