6.7-magnitude quake jolts Japan, Hokkaido nuclear station on emergency power

A Japanese nuclear energy station is relying on emergency back up power after a powerful earthquake knocked out electricity on the northern island of Hokkaido on Thursday, a stark reminder of the Fukushima disaster more than seven years ago.
The three-reactor Tomari nuclear plant, operated by Hokkaido Electric Power and in shutdown since the aftermath of the Fukushima disaster, lost power after a magnitude 6.7 quake hit the island in the early hours, the government said.

The station's fuel rods are being cooled with emergency power supplied by diesel generators, Chief Cabinet Secretary Yoshihide Suga told reporters on Thursday.
There were no radiation irregularities at the plant, Suga said, citing the operator.
The atomic regulator said the diesel generators have enough fuel to last seven days.
Japan's industry minister, Hiroshige Seko, has instructed Hokkaido Electric to restart its biggest coal plant after the station was tripped by the earthquake.