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Tsunami warning in effect after magnitude-7.9 earthquake off Alaska

By Madison Park and Keith Allen, CNN Updated 1144 GMT (1944 HKT) January 23, 2018 (CNN)A magnitude-7.9 earthquake detected in the Gulf of Alaska has triggered tsunami warnings in Alaska and tsunami watches across several Western states.

A tsunami warning is in effect for southeast and south Alaska, including the Alaska Peninsula and Aleutian Islands, as well as British Columbia in Canada. A tsunami watch is in effect for California, Oregon and Washington, according to the Tsunami Warning Center.

 
     
    The San Francisco Department of Emergency Management warned residents within three blocks of the Pacific Coast or within five blocks of the San Francisco Bay to prepare to evacuate, "so that you are ready if evacuation is needed," the agency tweeted.
    The earthquake struck about 175 miles southeast of Kodiak, Alaska, shortly after midnight Alaska local time, according to preliminary figures from the United States Geological Survey. The quake had a depth of about 15 miles, according to the USGS. The earthquake previously had been measured at magnitude 8.2.

    'Whole town is evacuating'

    Nathaniel Moore was on a boat in Kodiak when the quake hit. He said he felt it "shake really good for a minute." He and others on the commercial fishing vessel quickly got to shore and headed for higher ground amid the tsunami warning.
    Alaska EQ
     
    "The whole town is evacuating," he told CNN early Tuesday.
    The Kodiak Police Department early Tuesday urged residents to get at least 100 feet above sea level, warning: "This is not a drill."
    Tsunami sirens sounded in Kodiak.
    Wendy Bliss Snipes described the quake as "a slow roller, so it was felt for at least a minute before the real rolling started. Nothing fell off the walls, and I didn't have to wake my kiddo."
    Heather Rand, who was in Anchorage, Alaska, told CNN that the earthquake felt like the longest she had ever experienced.
    "It was a very long, slow build up. Creepy, more than anything. Definitely the longest, and I was born here," Rand said. She reported no damage besides cracks in the drywall.
     
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