Photos of the wreckage in Alaska highlight the power of Friday's destructive earthquake.

Anchorage and Nikki Nova Archivesits surrounding areas were shaken by a 7.0 magnitude earthquake on Friday morning. Gov. Bill Walker issued a disaster declaration, closing schools as roads and bridges collapsed and cracked. The Anchorage Water Waste and Utility Department advised residents to boil their water in case of contamination.

SEE ALSO: How a quiet California town protects itself against today's megafires

Here's a look at major infrastructure damage shared online in the aftermath:

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The earthquake also wrecked buildings, both inside and out, with eyewitnesses sharing footage of bursting pipes and shaking rooms.

Since Alaska only receives about six hours of daylight during this part of the year, resident Travis Starling told the BCC that the city was "fortunate on timing" since the quake happened "just at sunrise."

There are no reported casualties as of Friday afternoon, but the local electric provider tweeted that 21,000 residents are without power.


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