A large earthquake shook Unalaska Friday night; Unalaska's International Longshore and Warehouse Union is about to lose many of its top-skilled workers;and a volcanic eruption near the island nation of Tonga earlier this month, shares some similarities with a blast that hit Alaska more than a century ago.
A magnitude-6.3 earthquake hit roughly 50 miles south of Unalaska Friday night, according to the National Tsunami Warning Center.At this time, officials say no tsunami is expected.