Russia, N. Korea, S. Korea on tsunami alert after massive Japan quake

Russia and North Korea are on alert for potential tsunamis after a major 7.5 magnitude earthquake rocks Japan, sending the first tsunami waves to South Korea's east coast. Emergency services in Russia's Sakhalin island near Japan declared a "tsunami alert" on Monday, saying the island's western coast "may be affected by tsunami waves." Russian authorities in the Pacific city of Vladivostok also announced an alert and ordered fishermen to "urgently get back to shore."