BREAKING: a powerful 7.0 earthquake was recorded about 60 miles offshore of Ferndale, California, according to the U.S. Geological Survey. Magnitude 7.0 and 5.8 earthquakes off the coast of Northern California have prompted a rare tsunami warning for coastal areas near the California-Oregon state line, including San Francisco Bay. The quakes have promoted a tsunami warning from Davenport to the California-Oregon border.