There is no tsunami threat to Hawaii from a magnitude 7.8 earthquake that struck off the coast of Russia this morning, Pacific Tsunami Warning Center officials said. “Based on all available data a destructive Pacific-wide tsunami is not expected and there is no tsunami threat to Hawaii,” PTWC officials said at 10:41 a.m.

Closely monitored Barry Arm is a test case in a region where melting glaciers, steep slopes and narrow fjords set up conditions for dangerous tsunami-generating slides.