Weak magnitude 3.1 earthquake at 34 km depth
24 Sep 20:38 UTC: First to report: USGS after 4 minutes.
24 Sep 20:38: Magnitude recalculated from 3.4 to 3.3. Hypocenter depth recalculated from 39.1 to 36.1 km (from 24 to 22 mi). Epicenter location corrected by 59 km (37 mi) towards SE.
24 Sep 22:44: Magnitude recalculated from 3.3 to 3.1. Hypocenter depth recalculated from 17.8 to 33.5 km (from 11.1 to 21 mi). Epicenter location corrected by 5 km (3.1 mi) towards ESE.
Update Fri, 24 Sep 2021, 20:45Small 3.3 quake hits near Alaska City, Anchorage, Alaska, USA
3.3 quake 24 Sep 12:34 pm (GMT -8)
The United States Geological Survey reported a magnitude 3.3 quake in the United States near Alaska City, Anchorage, Alaska, only 10 minutes ago. The earthquake hit around noon on Friday, September 24th, 2021, at 12:34 pm local time at a shallow depth of 11 miles. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.3 earthquake as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Point MacKenzie (pop. 530) located 4 miles from the epicenter, Big Lake (pop. 3,400) 9 miles away, Alaska City (pop. 298,700) 14 miles away, Knik-Fairview (pop. 14,900) 18 miles away, Eagle River (pop. 24,800) 18 miles away, Eagle River (pop. 24,800) 18 miles away, Elmendorf Air Force Base (pop. 6,600) 18 miles away, and Meadow Lakes (pop. 7,600) 22 miles away. In Wasilla (pop. 9,300, 25 miles away), the quake was probably not felt.
Download the Volcanoes & Earthquakes app
and get one of the fastest seismic alerts online:Android