The San Mateo County Sheriff's Office of Emergency Services said that as of 4 p.m. Friday (March 11) it has returned to a "normal operating protocol" with the lifting of a tsunami warning by the National Oceanic and Atmospheric Administration.
The warning has been downgraded to an "advisory."
The emergency services center has been operating in emergency mode since the warning was issued Friday morning in connection with an 8.9 magnitude earthquake in Japan on Thursday night Pacific time.
In San Mateo County, there were no reports of damage, injuries or loss of life during the warning period, officials said. Residents have been advised that it is safe to return home.
All highways and streets are open. Beaches and coastal waterways remain subject to unexpected and dangerous waves, officials said.