An earthquake of magnitude 7.8 struck off the south-east coast of the Alaskan peninsula on Tuesday, according to the US Geological Survey (USGS).
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The quake, whose focus was at a depth of 10 km (6 miles), prompted the US National Tsunami Warning Center to issue a tsunami warning for the region – with many residents on social media posting videos of alert sirens ringing out in their areas.
The Tsunami Warning Center said tsunami warning was in effect for South Alaska and the Alaska Peninsula, Pacific Coasts from Kennedy Entrance, Alaska to Unimak Pass, Alaska
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