 Tsunami warned in time and lifted for Alaska and the rest of the Pacific. After a huge earthquake of 8.2 magnitude struck, the seismically active U.S. stayed in their late hours on Wednesday. A strong 8.2 magnitude earthquake triggered a tsunami scare in Alaska late on Wednesday. You can hear the sirens blaring here, although there have been no immediate reports of damage and the alerts were later lifted. Authorities had issued alerts for the southern parts of Alaska and Pacific Coastal areas, warning residents to move to higher ground. The quake struck at 10.15 at night local time. Alaska's Governor Mike Dunleavy tweeted that the state's Emergency Operations Center had been activated. The incident also put other Pacific countries on alert. Local media in Japan are reporting that country is not at risk, although they may experience changes in their tide levels.