The Trans Alaska Pipeline system has been shut down as a precaution following a 7.0 magnitude earthquake that struck the city of Anchorage on Friday morning.

No known injuries or damage to the crude oil system have been reported, although a spokesperson for the operator of the system, Alyeska Pipeline, said crews had “been dispatched to conduct surveillance and assess the system for possible damage.”

There is no estimate as to when the 800-mile long system will restart.