A map has shown an underwater fault line ... an area of real worry that could cause a nine-plus magnitude earthquake.

east of Seattle on Tuesday morning. The earthquake hit at 2:17 a.m. at a depth of 14 kilometers below the earth’s surface. According to the USGS “Did You Feel It” map, people felt shaking as ...

New maps of more than 1,000 deep-seated landslides in the Puget Lowlands of Washington State provide evidence of the last major earthquake along the Seattle Fault about 1,100 years ago -- and may ...

Tens of millions of Americans live in places with a high earthquake risk ... economic damages include the San Francisco, Portland and Seattle metropolitan areas. Also topping this list were ...

It’s a scenario that hasn’t been factored into hazard maps, building codes and ... more than 20 miles underground. “An earthquake on the Seattle Fault is … likely to be much, much more ...

A new study from geologists at the Washington State Department of Natural Resources (DNR) has found that the impact of a magnitude 7.5 earthquake on the Seattle Fault could cause tsunami waves as ...

And sometimes a quake at one fault can trigger activity at another, creating one large earthquake—or multiple in quick succession. Researchers have linked two faults in the Seattle area ...