NAPA (CBS SF) — Power has been restored to about 99 percent of PG&E customers in the North Bay, a utility spokesman said.

As of 4 a.m., there are around 150 customers still without power in Napa County, PG&E spokeswoman Nicole Liebelt said.

Crews are working to restore service to the remaining 150 customers Monday morning, Liebelt said.

Following the earthquake that struck around 3:20 a.m. Sunday, about 70,000 customers were without power in area of Sonoma and Napa counties, according to PG&E spokesman J.D. Guidi.

Of 439 gas odor calls PG&E has received, crews have visited approximately 400 of those customers and were expected to visit the other 39 sites Sunday evening, Guidi said.

PG&E has also lowered the pressure on its Sonoma/Napa transmission pipeline system and two patrols have been conducted to ensure its safety, Guidi said.

About 20 earthquake-related gas-distribution outages have also been reported at locations with damages, Guidi said.

Gas service will be restored to those customers once damages have been repaired at those locations, Nauman said.

A vehicle equipped with “sensitive” technology to detect gas leaks will continue to drive through parts of Napa most impacted by the earthquake, according to Nauman.

On Monday, crews will conduct door-to-door gas safety checks at residences and businesses affected by the earthquake.

PG&E customers in need of service restoration are asked to call (800) 743-5002.