September 29, 2009 (San Diego) 4:30 p.m. -- Federal experts have issued a tsunami advisory for possible dangerous currents in coastal areas of California and Oregon following a magnitude-8 earthquake in the Pacific Ocean near Samoa.

The National Oceanic and Atmospheric Administration's West Coast and Alaska Tsunami Warning Center says an advisory means that a tsunami capable of producing strong currents or waves dangerous to persons in or very near the water is imminent or expected.