4.6 earthquake shakes Southcentral Alaska

Jan. 16—An earthquake with a preliminary magnitude of 4.6 centered northwest of Wasilla shook the Mat-Su and Anchorage areas on Monday morning.

The quake occurred at 8:43 a.m. at a depth of 16 miles, according to the Alaska Earthquake Center. The epicenter was 11 miles northwest of Wasilla, 15 miles east of Willow and 36 miles north of Anchorage, the center reported.

It was widely felt in the region, according to accounts on social media, although a number of people also said they didn't feel it. There were no reports of damage.

The earthquake was initially reported by the National Tsunami Warning Center as 4.7. There was a lag in reporting by the Alaska Earthquake Center and USGS, which typically provide real-time feeds. It wasn't immediately clear why the delays occurred.