History
Iwanuma Station opened on 15 December 1887 under the private Nippon Railway as a station on what is now the Tōhoku Main Line. The Iwaki Line, today's Jōban Line, joined here on 10 November 1897, and the two lines have used Iwanuma as a junction ever since. Nippon Railway was nationalised in 1906, and the present station building entered service on 1 March 1980. JR East and JR Freight took over operations on 1 April 1987. The east-west free passage was completed in March 1999, and a typhoon-driven flood in September 2011 forced a three-day closure following a signal-equipment fire. One Hitachi limited express per day stops here.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
The station occupies the former site of Iwanuma Castle, the seat of the Iwanuma Domain ruled by the Tamura clan from 1662 to 1681 as a sub-fief of Sendai.