The warning zone extended south from the Douglas and Lane county line about 10 miles southwest of Florence, all the way to Davenport, Calif., about 10 miles northwest of Santa Cruz.

Earthquakes and tsunamis are a looming presence in Oregon. According to experts, "the big one" — a magnitude 8.0 or higher earthquake — is imminent from the Cascadia Subduction Zone off the coast.

The major quake promoted a Tsunami Warning from Davenport to 10 miles south of Florence, Oregon. The warning included more than 4.6 million people and was allowed to expire just before 11 a.m.

The National Tsunami Warning Center, which is based in Alaska, issued the warning shortly after the 7 magnitude quake hit off the northern California coast about 10:44 a.m. It hit 45 miles ...

The warning was issued after a magnitude 7.0 earthquake was recorded off the coast of northern California at 10:45 a.m. Thursday. It was lifted just before noon.

Earthquakes and tsunamis are a looming presence in Oregon. According to experts, "the big one" — a magnitude 8.0 or higher earthquake — is imminent from the Cascadia Subduction Zone off the coast.