Powerful 6.6 earthquake hits Japan's northern island of Hokkaido
2:40pm PDT - September 5th, 2018 tsunami - Business InsiderA magnitude 6.6 earthquake struck the northern Japanese island of Hokkaido at about 3 a.m. local time on Thursday. While no tsunami warning has been issued, power outages and structure collapses have been reported across the region. National broadcaster NHK r…