An earthquake gave southcentral Alaska a sharp awakening Thursday, nearly a month after a major 7.0 quake caused damage across the region.

According to the Alaska Earthquake Center, the 4.9 quake struck eight miles northwest of Anchorage at 5:21 a.m., at a depth of 21.7 miles.

Thursday’s quake was the largest aftershock since Dec. 1 from the Nov. 30 temblor, which damaged schools and roads from the Mat-Su to Anchorage.

Editor's note: An initial version of this story inaccurately described Thursday's quake as the largest aftershock of the Nov. 30 quake, rather than the largest one since Dec. 1.

Melissa Frey contributed information to this story.

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