After a tsunami warning was issued at 1:30 am Tuesday morning for parts of Alaska and the Pacific Coast, it was then cancelled about 3 hours later. (image courtesy of KNDU)

A 7.9 magnitude quake struck about 157 miles southeast of Kodiak, Alaska. The quake was centered about 6.2 miles down in the ocean, and 7.9 is considered major on the Richter Scale.

A tsunami alert was issued for Kodiak and other areas on the Alaska coast, with residents being told to evacuate to ground at least 100 feet above their homes. According to the British newspaper The Sun, a monitor bouy out at sea not far from the epicenter registered a 32-foot wave.

But after several hours, the alert was called off. It had originally triggered similar warnings for the Washington, Oregon coast and even San Francisco, CA.