 Upon completion, HMS "M30" was sent to the Mediterranean.Whilst enforcing the Allied blockade in the Gulf of Smyrna, HMS "M30" came under fire from the Austro-Hungarian howitzer battery 36 supporting the Turkish, and was sunk on 14 May 1916.Sibelius Glacier

Sibelius Glacier () is a glacier, 12 miles (19 km) long and 6 miles (10 km) wide, flowing south into the Mozart Ice Piedmont 10 miles (16 km) southwest of Mount Stephenson situated in the northern portion of Alexander Island, Antarctica.