Cashman was elected to the National Academy of Sciences in 2016.[13] She was also elected a Fellow of the Royal Society (FRS) in 2016.[4] As of 2016[update] she holds a Royal Society Wolfson Research Merit Award.[3] She is a Fellow of the American Geophysical Union and the American Academy of Arts and Sciences, and is a member of the Academia Europaea.[4][4][14] She is a member of the International Association of Volcanology and Chemistry of the Earth's Interior (IACVEI).[2]