According to JR East, the Tohoku Shinkansen had suspended operation on the up and down traces between Sendai Station and Morioka Station as a result of energy outage, however at 0:10 pm, the up line resumed operation.
The Akita Shinkansen has additionally resumed operation on the inbound line between Tazawako Station and Morioka Station. On the opposite hand, there is no such thing as a prospect of resumption of operation on the outbound line.
Source
Tohoku Shinkansen Sendai-Morioka Inbound line resumes operation | NHK
