A magnitude 4.1 aftershock from the big Nov. 30 earthquake shook Anchorage just before midnight Tuesday.
The quake was centered 9 miles northwest of Anchorage near Point MacKenzie and was the second aftershock of 4.0 or larger in August.
A magnitude 4.1 aftershock centered near Big Lake on Aug. 5 was the largest aftershock of November’s 7.1-magnitude quake since May.
No damage or injuries were immediately reported.
Seismologists say Anchorage could feel aftershocks for another for months to come, but less frequently than in the weeks after the main quake.